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(12) PATENT

(51)  Int.Cl.7:  B 65D 30116

(21)  Application Number: ~nP/2006/00499

(22) Filing Date:    09/08/2006    

(31)  Priority Number:    (32) Date:  (33) Country:

(73)   Owner(s):    SHAH PRAVINCHAND DEVCHAND RAIMAL of P. 0. Box 38279-00623, NAIROBI, KENYA

(72)   Inventor(s)    SHAH PRAVINCHAND DEVCHAND RAIMAL.

(74)  Agent/address for correspondence:       

(54) Title: NOVEL WOVEN POLYPROPYLENE BAG FORMING A RECTANGULAR CROSS SECTION AT THE BASE.

(57) Abstract: The present invention provides a sack made of woven polypropylene stripes ( 1) whether coloured or transparent, formed by mono-axially stretched single-layer polypropylene bands with which fabric may be coated on one or both sides with a thermoplastic material, particularly polyolefine. Initially, the woven material is made in form of tube (2) or plane material, tuned into sleeve. The continuous tube is cut to form shorter sections which are then folded to form a basic six sided pattern (3); which is then stitched on one end (4) in a strainght line to form a folded bag that opens to form a substantially rectangular cross section (5) when filled
NOVEL WOVEN POLYPROPYLENE SACK FORMING A RECTANGULAR CROSS SECTION AT THE BASE

ABSTRACT

The present invention provides a sack made of woven polypropylene strips (1) whether coloured or transparent, formed by mono-axially stretched single-layer polypropylene bands with which fabric may be coated on one or both sides with a thermoplastic material, particularly polyolefine. Initially, the woven material is made in form of tube (2) or plane material turned into sleeve. The continuous tube is cut to form shorter sections which are then folded to form a basic six sided pattern (3); which is then stitched on one end (4) in a straight line to form a folded bag that opens to form a substantially rectangular cross section (5) when filled.

NOVEL WOVEN POLYPROPYLENE SACK FORMING A RECTANGULAR

CROSS SECTION AT THE BASE

FIELD OF THE INVENTION

The present invention relates to a process for manufacturing bags from woven materials preferably strips of polypropylene whether coated or uncoated. Furthermore, the process aims to provide a simplified means of making a bag that opens to take up a substantially rectangular shape when filled; through a double stitching line at the bottom of the bag.

The present invention relates to a plastic container for bulk transportation for use in safekeeping and transporting chemical goods, plastics, grains, fertilizers, salt, sugar, rice and the like, more especially to an improved container having a specific shape when filled; and which shape is achieved through novel folding and double stitching at the bottom end of the sack.

BACKGROUND OF THE INVENTION

Traditionally, sacks are manufactured using, among others, the so-called Form, Fill and Seal Machines, referred to in the following description as FFS machines.

Such machines are disclosed in the published several prior art documents such as patents US 5,845,995, DE 199 33 486, EP 534 062, DE 44 23 964, DE 199 20478 and DE 199 36 660. A tube of sacking material such as woven polypropylene is first made using conventional processes that are known in the industry. The tube may be wound into a roll for storage. The FFS machines have unwinding stations on which film tubes are stored. These unwinding stations unwind the film tubes and cut or separate them into film tube segments. Usually sections of the film tubes so cut are provided with bottoms through stitching or a heat sealing process. The resulting bag is then printed and is ready to be filled with the filling material and sealed. The type of bag forming and filling suggested in the aforementioned published patents is also a part of the contents of this disclosure. The same applies to the provisions of the term 'Form,Fill and Seal machines' (FFS) and also the processes of transporting the film tubes, film segments and bags into these machines.

The closest prior art to the present invention US 5,845,995 relates to a sack made of fabric consisting of monoaxially drawn, desirably single-layer, tapes of polymer, particularly polyolefine, preferably polypropylene, which fabric may be coated on one or both sides with a thermoplastic material, particularly polyolefine, wherein the fabric is a seamless tubular fabric or a flat fabric combined to form a tube and at least one end of the sack having in particular the shape of a box or a right parallelepiped is formed by folding the fabric ends to a particularly rectangular bottom surface. The sack is characterized in that at least one end of the sack, particularly a bottom surface, is bonded, via an intermediate layer particularly made of thermoplastic, particularly polyolefine, preferably polypropylene material, and by means of heat, to a cover sheet made of fabric consisting of monoaxially drawn tapes of polymer, in particular polyolefine and preferably polypropylene, and in that only the external surface area, in particular less than 30% of the material thickness of the fabric tapes, includes disoriented polymer, in particular polyolefine and preferably polypropylene, molecules due to the heat, wherein in the rest of the material area the molecules are oriented. The invention also relates to a process for welding a cover sheet onto a bottom surface of the sack. The formation of the bottom through welding or thermal sealing is the major difference between the prior art and the present invention which instead uses a simple stitching process.

Methods are known that are used generally to manufacture film tube segments whose length corresponds to that of bags formed later. In other cases, immediately after production, the formed film tube segments are cut immediately to the length of the bags formed later and are fed individually to the bag forming, filling and sealing machines. This type of high quality of bag manufacturing is probably well-known in the pet food sector.

Prior art discloses thermal welding of the base of a sack that is pre-folded to form a substantially rectangular cross section when viewed from the top; but this technique has been noticed to exhibit a number of technical shortfalls that need to be addressed.

Thermal welding of the base or bottom of the sack is only usable when the sack is made of materials that may be welded; and is obviously not applicable to sacks made of other materials such as sisal or other natural textiles with no thermoplastic qualities.

Thermal welding of the base or bottom of the sack makes the sack cumbersome or costly to use in continuously filling arrangements especially with materials whose chemical composition or stability are susceptible to change with temperature variation or heating-such as explosive chemicals-since there may be a need to cool the weld before filling. There is also very little provision for verifying the strength of the weld before filling; while stitching always guarantees strong joining.

The welding apparatus is also likely to be more complicated or costly than a simple stitching equipment; hence in cases where the sacks are to be supplied to the final users with one end still open to be sealed after the sack is filled, it is most probable that the final user will use a stitching machine to seal it; hence the bottom of the sack should also be stitched for consistency.

Use of welding apparatus also renders it difficult to produce sacks using labor intensive techniques where sacks may be produced by for example manually folding and stitching appropriately cut and formed materials in the absence of elaborate equipment.

OBJECTS OF THE INVENTION

On the basis of the identified disadvantages of the prior art, the present invention sets forth to provide a novel product and process for packaging using sacks that are inexpensive, simple and form into a substantially rectangular shape at least at the base, to facilitate easy filling and a more efficient utilization of storage and/or container space due to their superior stacking characteristics.

Therefore an objective of the present invention is to provide a process for manufacturing bags through folding and stitching in a straight line at one end of the bag to form a bottom part and having an intrinsic property of being rectangular in cross section substantially through a portion of the length of the fill able bag beginning at the base; and determined by the sealing method used to close the bag.

Another object of the present invention is to provide a superior packaging method using sacks of woven materials including polyurethane, sisal or textiles folded and assembled to form substantially cuboid shape when filled and further having the flexibility in being usable with varying levels of automation in filling arrangements from being susceptible to use with manually operated equipment to fully automated setup.

Yet another object of the present invention is to provide a sack with guaranteed strength of the bottom and other joints formed by stitching.

SUMMARY OF THE INVENTION

Figure 1 shows a perspective view of a bag according to the present invention, and formed by pre-folding a film tube to make it have six sides; then subsequently stitching one end of the formed folded sack to constitute the bottom. The sack body is in the form of a rectangular parallelepiped prepared by cutting a cylindrical inflation film into the required length, folding two sides of the film along the length and stitching one end of the film to form the sack bottom. This sack is used for bulk transportation of products that may be introduced into the sack through a feeding end and sealed using any of the known conventional methods.

The sack of the present invention consists of fabric of monoaxially drawn polyolefine tapes. These tapes are produced by stretching polyolefine sheets to 4-1 0 times their original length, whereby molecules chains in the tapes'longitudinal direction are oriented and thus have a strength in the direction which is about 6-1 0 times higher compared to the original sheets. The tapes'width is usually about 1.5-10mm and the thickness is 20-801Jm. transverse strains cleave the tapes, which is why they are woven into circular fabric made of weft and warp layers about perpendicular to each other. The fabric then has uniformly high tensile strength in all directions. In order to achieve dust and moisture proof and to prevent layers of tapes from sliding, a melt coating which is preferably of the same material as the tapes can applied to, and pressed into, the material on one side or both sides thereof. The present sack can be shaped into a rectangular cross section, these shapes being more favourable than others.

The invention provides for a method of manufacturing sacks from a tube and/or film of material by first folding the section of the tube appropriately cut or measured out to form the sack into a six-sided arrangement with two open ends that is further pressed flat by folding four of the sides inwards then double stitching on one open end that becomes the bottom of the sack.

Upon filling, the four sides initially folded inwards unfold outwards when pushed by the contents and straighten along most of the height of the package to form two sides of a substantially cuboid sack when rested on the bottom which also flattens out under the weight of the contents. The filled sack may be sealed at the top by stitching or any other technique known in the prior art by first folding inwards the aforesaid four sides then stitching or sealing along the length of the remaining two sides to form a top seal that is parallel to the bottom stitch and preferably of equal length and configuration.

The package thus formed will always assume a cuboid shape when stored; having a substantially rectangular cross section throughout both axes; and has superior stacking qualities when stored or containerized for transportation since the sacks occupy the entire volume without wastefully leaving any spaces in between.

The invention is best disclosed with the help of and reference to accompanying drawings whwrein:-

Brief Description of the Drawings

Figure 1 is a perspective view of the sack according to the present invention with its bottom already formed; and in a position of filling with its top end (11) still open.

Figure 2 is a representation of the basic steps in the formation of the sack, where 2a. is the formation and/or trimming of the material tube into the suitable size for sacking; 2b. is the folding of the cut tube piece while 2c. represents the flattening and stitching or sealing of the tube in 2b. to form the sack.

Figure 3 shows a possible use of the sack according to the present invention and sealed with a stitch after folding at the open end to resemble the stitching or sealing at the bottom so as to form a substantially cuboid package.

Figure 4 represents the sack when filled and sealed by simply stitching the open end as is normally done to sacks used in the prior art.

Figure 5 illustrates the sack when filled and sealed by simply folding and sticking together with adhesive tape as also normally done to sacks used in the prior art.

Detailed Description of the Invention

With reference to the drawings accompanying this disclosure, Figure 1 represents the preferred embodiment of the invention; while Figure 2 shows the basic stages of preparing the product in Figure 1 wherein a suitable woven sack material (13) is pre-formed into a tube either by being woven in a tubular fashion or by joining two edges of a web of the sack material. The formed tube is then trimmed into a short length as determined by the desired shape and size of the final package (3). In case of desired printing on the sides of the tube being foreseen to be tricky at a later stage, the cut tube may be pre-printed at any stage before continuing with its formation. The a tube is then bent or folded appropriately by use of methods that are well known in the prior art disclosures to form into a six-sided (5,6,7,8,9, 10) shaped short tube with two open ends (4,11) (Fig. 2b) that is further pressed flat by folding four of the sides (5,6,7,8) inwards then so that the flattened tube appears as if it had only two sides (9, 10) and two open ends (4, 11 ).

One open end (1) is then sealed by double stitching (2) so that (1) becomes the bottom of the fillable sack (3) in Figure 1. The four sides of the Fillable sack (5,6,7,8) may be flattened again to facilitate printing on the larger sides (9, 10) using conventional techniques that are known in the prior art. In case the sack was being made for a final user other than the sack manufacturer, it may then be delivered to the user who may fill and seal it using stitching or any preferable technique that is well known to practitioners in this field of invention.

Upon filling, the four sides (5,6,7,8) of the sack initially folded inwards unfold outwards due to the weight and/or shape of the contents acting in tandem with the special fold at the bottom (1) of the sack and straighten along most of the height of the package to form two sides of a substantially cuboid sack when rested on the bottom which also flattens out under the weight of the contents. The filled sack takes up a substantially rectangular cross sectional configuration when viewed from the filling end. The sack may be sealed at the top by stitching or any other technique known in the prior art by first folding inwards the aforesaid four (5,6,7,8) sides then stitching or sealing along the length of the remaining two sides (9, 1O)to form a top (11) seal that is parallel to the bottom stitch (2) and preferably of equal length and configuration.

Due to the special folding at the top and bottom, the package thus formed will always assume a cuboid shape with sex substantially flat and rectangular surfaces forming its sides when stored; and, having a substantially rectangular cross section when viewed from any axis perpendicular to its aforesaid surfaces. The sack has superior stacking qualities when stored or containerized for transportation since the sacks occupy the entire volume without wastefully leaving any spaces in between (12) as illustrated in Figures 4,5.

THE BEST MODES FOR WORKING OF THE INVENTION EXAMPLE 1

Upon filling, the four sides (5,6,7,8) of the sack initially folded inwards unfold outwards due to the weight and/or shape of the contents acting in tandem with the special fold at the bottom (1) of the sack and straighten along most of the height of the package to form two sides of a substantially cuboid sack when rested on the bottom which also flattens out under the weight of the contents. The filled sack takes up a substantially rectangular cross sectional configuration when viewed from the filling end. The sack as shown in Fig. 3 may be sealed at the top by double stitching along a path substantially parallel and equal in length to the stitch at the bottom (2) by fust folding inwards the aforesaid four (5,6,7,8) sides then stitching or sealing along the length of the remaining two sides (9,10) to form a top (11) seal that is parallel to the bottom stitch (2) and preferably of equal length and configuration.

Due to the special folding at the top and bottom, the package thus formed will always assume a cuboid shape with six substantially flat and rectangular surfaces forming its sides when stored; and, having a substantially rectangular cross section when viewed from any axis perpendicular to its aforesaid surfaces. The sack has superior stacking qualities when stored or containerized for transportation since the sacks occupy the entire volume without wastefully leaving any spaces in between (12) as illustrated in Figures 4,5.

EXAMPLE 2

Once filled, the sack as shown in Fig. 4 may be sealed at the top by stitching or any other technique known in the prior art without first folding inwards the aforesaid four (5,6,7,8) sides then stitching or sealing along the length of the remaining two sides (9,10) to form a top (11); but instead folding outwards the aforesaid four sides (5,6,7,8) before stitching the full length ofthe upper part of the sack to seal that is parallel to the bottom stitch (2) and substantially longer than the bottom stitch.

This creates a package that has a rectangular bottom-formed by the contents flattening the bottom as in example 1 above-on which it may rest upright but a tapering top part when viewed from the narrow side of the package.

EXAMPLE 3

The package as shown in Fig. 5 once filled may be sealed by simply folding at the top then sticking with an adhesive such as cellotape. This renders the package usable even by the smallest enterprise where production volumes do not warrant investment in expensive sealing equipment such as line stitching machinery

It is obviously possible to imagine various other configurations of extending the present invention beyond even what is claimed hereunder.

What is claimed is:-

1.    A method of manufacturing sacks from woven polypropylene strips or film pre-formed into a tube with or without patterns colour characterized by:-

a.    Cutting the tube into shorter length corresponding to the required sack length then

b.    Bending the tube or folding it appropriately by use of methods that are well known in the prior art disclosures to form into a six-sided (5,6,7,8,9,10) shaped short tube with two open ends (4,11) that is further pressed flat by folding four of the sides (5,6,7,8) inwards then so that the flattened tube appears as if it had only two sides (9,10) and two open ends (4,11).

c.    Sealing by double stitching on one open end (1) so that it becomes the bottom of the tillable sack (3) which is ready to be filled and is then be delivered to the user.

2.    A process as in claim 1 further characterized that the four sides of the Fillable sack (5,6,7,8) may be flattened again to facilitate printing on the larger sides (9,1 0) using conventional techniques that are known in the prior art.

3.    A process as in claims 1-2 wherein the sack is filled and sealed using simple stitching or any preferable technique that is well known to practitioners in this field of invention after being shipped to the final user.

4.    A process as in any of the preceding claims whereby the sack is sealed at the top by stitching or any other technique known in the prior art by first folding outwards the aforesaid four sides (5,6,7,8) before stitching the full length of the upper part of the sack to seal the top part with a stitch that is parallel to the bottom stitch (2) and substantially longer than the bottom stitch.

5.    A novel product for packaging using sacks capable of more efficient utilization of storage and/or container space due to their superior stacking characteristics as a result of having a substantially rectangular top end hence an overall shape of a cuboid formed using woven materials including polypropylene strips, polyurethane, sisal or textiles characterized by:-

Having a rectangular base when filled as a result of folding and stitching at the bottom of the sack.

6.    A sack as in claim 4 further characterized by having the top part sealed by folding and sticking with an adhesive tape such as cellotape.

 (57) Abstract: The present invention relates to a sanitary protective gear comprising of a disinfecting pad measuring 20-50 cm2 and 5-20 mm thick. The sanitary protective gear is used for wiping handles of supermarket and airport trolleys. A sanitary disinfectant wiping pad has a roll in container or kit installed on one side of two rods supporting the supermarket and airport trolleys and has a disposal kit or container installed alongside the trolley to avoid littering in and around the supermarket and airport.

A sanitary disinfecting pad is characterized in that it contains a disinfectant agent and has a soft pad to provide a visual indication of the status of the product. A sanitary disinfectant pad is resistant to bacterial and viral infections. The trolley handles are wiped by customers manually and a process of manufacture of a sanitary protective gears and its use as a sanitary disinfectant pad for wiping purposes are disclosed.

SANITY PHASE 2- THE PROTECTIVE GEAR

Field of Invention

The present invention relates to the use of a protective gear in form of a sanitary disinfectant pad measuring 20-50 cm2 and 5-20 mm thick which is used to wipe trolleys in shopping centres, especially supermarket and airports. A sanitary pad is removed from a roll fixed on a rod embedded on one of the two rods supporting the trolley handle by pulling it and wiping the handle thereby disinfecting it. The used pad is thrown into a kit or disposal container fixed alongside the trolley to avoid littering.

BACKGROUND OF THE INVENTION

The term "trolley" as used below means transport containers which are commonly used in supermarkets and large shops in order to assist customers in the transportation of goods selected in the supermarket to the cash till and optionally the transport of the purchased goods from the till to the car park. It also extends to Airport trolleys used in transporting luggage from the belt area. Owing to the frequent use of their handles, the said handles get infected within a short time as they are handled by many customers. For hygienic and health reasons, it is necessary to clean the trolley handles before handling.

Airports, supermarkets, grocery stores and the like provide carts and trolleys for customer's convenience that are adapted to hold the customer's selected purchases. Customers handle, interact and touch trolleys with hands and many articles some of which are usually soiled, contaminated and infected. The trolleys thus contain food, including liquids, which at times are spilled or come in contact with the trolleys surfaces. Many customers have small children who are carried in the trolleys.

Not only is it unsanitary to continue to use dirty, unwashed trolleys but at times such use could promote the spread of disease and infectious micro-organisms which multiply where food items have been left.

Since it is good sanitary practices to have the trolleys cleaned at regular intervals, a definite need exists for a system, which will clean ordinary airport or supermarket trolley handles in a short period of time. The standard wire rod or mesh basket trolley is provided with a handle, a basket mounted in a frame, and generally four caster mounted wheels. The trolleys vary gready in design, however, they all present a handle and basket to allow the purchaser to hold and move their selected items and in most cases they provide a seat and pivoting support for the seat for the carrying of infants and small children.

Due to the nature of the produce hauled in the trolleys and the gradual accumulation of ftlth upon the trolley handles, it is highly desirable that the handles be periodically cleaned and even more importandy by every new user. Failure to thoroughly clean such trolleys could reduce the number of customers to a particular supermarket and airports. This is because customers prefer not to use unsanitary, soiled trolley handles. On the other hand, if the airport trolleys were periodically cleaned and sanitized the food oudet store and supermarkets could advertise such a fact, which would gready enhance the trade at that oudet.

The standard practice at most stores which utilize shopping trolleys is to clean the trolley handles manually by the use of high pressure steam or hot water hand towels and then to have the detergent and hot water rinsed away by the use of a fresh water spray.

Unfortunately, manual washing of trolley handles is inefficient so that it costs far too much to clean trolley handles. Such inefficient manual washing of so many carts is too costly. It also leaves a mess in the parking lot. It is not uncommon for large airports and supermarkets to have 400 or more trolleys in their establishment. The supermarket owner may be forced to increase the interval between washing cycles and thus deprive his customers of the clean, sanitary trolley handles that they desire.

In order to provide for an automatic trolleys washing system, some inventions have been made which somewhat automate the process thereby eliminating the need for a total manual washing. Although automation reduces the cost of washing the trolley, the prior art cleaning devices for supermarkets suffer from a number of definite drawbacks.

DISCUSSION OF PRIOR ART

According to the prior art, the present invention is simple in its applicability and there are no patents in force in Kenya on this product. However, there are a few quoted publications or patent documents that exist in other countries but are not similar to the present invention.

Prior art cleaning devices for supermarkets, airport and grocery trolley and cart handles are generally of the type which provide an enclosure, spray nozzles, and a means for introducing the trolleys in a nesting fashion and retrieving them upon having the trolley handles sprayed with a detergent solution. This has proved very cumbersome. Such devices do not provide for a readily mobile washing of trolleys nor a complete system in which the trolley handles are sanitized and ready for customers use. Also, such devices generally fail to provide for the re-circulation of fluids employed so that the fluids are wasted whereas they could be recycled to more efficiently wash the trolley handles.

Most of the airport trolley handle washing devices provide for a semi-automatic washing of the trolley. However, none are known which provide for a sanitary protective gear comprising a disinfecting pad for wiping handles of trolleys in supermarket and airports.

Examples of known trolley cleaning devices can be found in U.S. Pat. No. 2,997,048 to Gertken, et al. issued Aug. 22, 1961, U.S. Pat. No. 3,179,117 to Gibson, et al. issued Apr. 20, 1965, and U.S. Pat. No. 3,698,029 to Pulliam issued Oct. 17, 1972.

Other prior art in cleaning of trolleys include:

Patent No. W0/1988/010496 by AUTOMATION FACILITIES LIMITED KINGSBURY, Philip, Charles, Orlando GUTCH, Christopher, John, Worsley discloses a cleaning cassette for cleaning the heads of streamer tape drives which has a wiper arm carrying a foam wiping pad at one end and pivoted in the casing at the other. A pick-up wheel engages the capstan of the drive and reciprocates the wiper arm, through gear wheels and a crank arm, to cause acute movement of the pad across the head. The pad has a thicker central portion and thinner wings, and a metal base strip is compressed over the wings. Although the effective head cleaning is achieved in a simple and practical structure without excessive headwear, it does not refer to trolley handles at the airport and supermarkets.

The invention proposed in German Patent De 198 57 A 1 which relates to a mobile cleaning and washing plant for shopping trolleys of all kinds and in which a washing box together with a cleaning fluid or water treatment plant and connecting pipes is mounted on a base frame and attached to a transport device. To clean the shopping trolleys, the mobile cleaning and washing plant, when at the desired place of use, is either placed on the supports of the base frame in front of the transport device, or remains on the transport device during the cleaning operation. Such device does not involve a wiping disinfecting pad.

In the German Utility Model Application DE 298 683 Ul, a mobile washing container is disclosed which can be used in particular for cleaning shopping trolleys, mesh boxes and merchandise baskets. Tills mobile washing container is a standard Euro-container. After the residual waste has been conveyed into a collecting tray by means of a suction fan, the transport containers to be cleaned are moved through a washing installation which includes high-pressure jets, movable and adjustable washing brushes, disinfectants jets, a drying-air duct and an oil spray device for spraying the wheels and wheel pivots of the transport containers to be cleaned.

Spraying of the transport containers to be cleaned with a disinfectant by means of disinfectants jets specially provided for this purpose ensures additional hygiene. A re-circulated water cleaning arrangement which carriers out a water treatment process is also integrated in the mobile washing container. Because it has an independent power supply, this washing container can be used everywhere without being dependent on external power supply arrangements. However, the disclosed invention teaches manual application of a trolley handle wiping sanitary pad.

German Utility Mode Application DE 299 01 282 Ul relates to a washing system for shopping trolleys, which is equipped with its own power supply unit. This can be preferably a diesel unit, which generates electric current in order to operate the electrical, pneumatic, and hydraulic components contained in the washing system disclosed. The washing system also includes a purification component, which purifies the used cleaning fluid so that said fluid needs to be changed less frequendy. In addition, a blast air-drying system is integrated to dry the shopping trolleys after washing. The washing system also includes components, which lubricate the wheels and wheel axles. This contrasts the present invention in that it does not involve the use of a sanitary pad embedded on the trolley to wipe the handles.

Patent application W0/2005/020776 by SHIN, Kwang-chel discloses a wiping pad for private parts for use by females to clean the vaginal region after urination. The feminine hygienic pad comprises an absorptive layer for absorbing urine, a vaginal contact layer for coating one surface of the absorptive layer in order to prevent the absorptive layer from coming into direct contact with the vaginal region while enabling absorption of urine on the absorptive layer, and a hand contact layer for coating the other surface of the absorptive layer in order to prevent the absorptive layer from coming into direct contact with the hands. The said teaching of the use of a wiping pad for private parts does not relate to cleaning of handles of trolleys.

Very few devices in the known art relate to the wiping of the trolleys and none known prior art are directed to provide such disinfectant pad in which sanitizing is also provided for in the wiping of the trolley handles as claimed in the present invention.

In a different type of apparatus as disclosed in U.S. Pat. No. 3,736,948 to Crosswhite issued June 5, 1973, an apparatus for washing hospital carts is disclosed in which a sanitizing fluid from a remote source is used to spray upon hospital carts. U.S. Pat. No. 4,279,263 to Pulliam issued July 22, 1981, discloses a portable expandable structure for manually washing carts, which includes a type of recirculating pump system.

Although the prior art discloses a number of interesting cart washing inventions, a complete cleaning and sanitizing system employing sanitizing fluid in a pad adapted for a trolley, truck or trailer handles is not shown. Such an invention would greatly reduce the costs of cleaning supermarket trolley handles, thus allowing the customers and store owners to have the trolley handles cleaned and sanitized at a more frequent interval.

Accordingly, a need exists for a protective gear involving a trolley employing sanitizing fluid and being adapted for carriage on a trolley so that it can be handled and taken to a number of establishments including till while clean. Such a system would provide a simple, hygienic, inexpensive apparatus that could wipe a trolley in a matter of seconds, disposed of on trolley itself, service with complete confidence of customers while clean. A cleaning system of that type would provide a system that is simple in design, easy to maintain, and easy to adjust to different types of trolley. Such a device should be easily repaired, not subject to damage by proper use and simple to manufacture. The instant invention is directed to all of these needs as well as to others as explained in the following summary.

SUMMARY OF THE INVENTION

The primary purpose of the invention is to provide a sanitary pad measuring 20-50 cm2 and 5-20 mm thick for cleaning for trolley handles which is save, easily adapted to a number of designs of trolleys, and provides for a disposable kit used so that when the operator has finished wiping the trolley. No evidence of detergent, sanitizing fluid, grit, grime, or other debris is left as residue. The device is self-contained in that a supermarket trolley can be moved and exited in a complete sanitized state without the necessity for employing additional stations or process steps.

The purposes and features of the invention are obtained by providing kit installed alongside to avoid littering. The trolley can move through the tunnel while clean. The pad is provided for a sanitizing fluid so that prior to with a sanitizing fluid to eliminate bacterial growth and insure customer's confidence in the cleanliness of the carts.

The present invention therefore discloses a sanitary pad for wiping the trolley handles used in supermarkets and airports hence achieving the object-defmed hereinabove. This invention is only limited to supermarket and airport trolley handles in its applicability.

The present invention can be economically and easily manufactured and permits the simple handling in that the customer pulls the sanitary pad from the already installed roll, cuts it and wipes the handle of the trolley. The pad contains a disinfectant, which is antibacterial and which disinfects the handle of the trolley and also the customer's hand. The used pad is disposed of supermarket and airport trolleys. The pad is thrown as a waste in a kit installed on the trolley. The exercise is repeated by the next customer and so on.

For instance, in Kenya where the present invention protection is sought among other countries, there is no such an invention in this regard hence the present invention is unique and applicable. The sanitary pad is applied while dry and not wet. It is not damped in any chemical. It contains the above stated chemical, which is a disinfectant in itself. While the present invention has been described with reference to specific embodiments the description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as other 'embodiments of the invention, will be apparent to persons skilled in the art upon reference to this description. It is therefore contemplated that the appended claims will cover any such modifications or embodiments as fall within the true scope of the invention.

CLAIMS

I    claim:
1.    A sanitary protective gear comprising of a disinfecting pad measuring 20-50 cm2 and 5-20 mm thick for wiping handles of trolleys.

2.    A sanitary protective gear according to claim 1 wherein the disinfecting pad is used for wiping handles of supermarket and airport trolleys.

3.    A sanitary disinfectant wiping pad according to claim 1, characterized in that the roll pad is installed in a kit on one end of two rods supporting the supermarket and airport trolleys.

4.    A sanitary disinfecting pad according to claim 1 to 3, characterized in that a disposal kit or container is installed alongside the trolley to avoid litter in and around the supermarket and airport.

5.    A sanitary disinfecting pad container according to claim 3 and 5 characterized in that it has a disinfecting agent.

6.    A sanitary disinfectant pad according to claim 1 to 3 and 5 characterized in that the pad is soft to provide a visual indication of the status of the product.

7.    A sanitary disinfectant pad according to claim I to 6 characterized in that the pad is resistant to bacterial and viral infections.

8.    A sanitary disinfectant pad according to claim 1 to 6 characterized in that the supermarket and airport trolley handles are wiped by customers manually.

9.    A process of manufacture of a sanitary protective gear according to claim 1 to 4, 6 to 7.

10.    Use of a sanitary disinfectant pad according to claim 1 to 9 characterized in that the pad is not limited to wiping the handles of supermarket and airport trolleys only.

ABSTRACT

The present invention relates to a sanitary protective gear comprising of a disinfecting pad measuring 20-50 cm2 and 5-20 mm thick. The sanitary protective gear is used for wiping handles of supermarket and airport trolleys. A sanitary disinfectant wiping pad has a roll in a container or kit installed on one side of two rods supporting the supermarket and airport trolleys and has a disposal kit or container installed alongside the trolley to avoid littering in and around the supermarket and airport.

A sanitary disinfecting pad is characterized in that it contains a disinfectant agent and has a soft pad to provide a visual indication of the status of the product. A sanitary disinfectant pad is resistant to bacterial and viral infections. The trolley handles are wiped by customers manually and a process of manufacture of a sanitary protective gears and its use as a sanitary disinfectant pad for wiping purposes are disclosed.

 

 

 

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