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(11)    Patent No :    AP 2727   
(21)    Application No :    AP/P/2009/005029   
(22)    Filing Date :    18.04.2008   
(24)    Date of Grant &    27.08.2013   
           
(46)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
GB    0707438.8    18.04.2007

(84)    Designated State

BW    GM    GH    KE    LS    MW  MZ   NA   SL
SD    SZ    T Z    UG    ZM    ZW
(73) Applicant(s)

DESIGN TECHNOLOGY AND INNOVATION LTD, Simpson Wreford & Partners, 3rd Floor, Suffolk House, George Street, Croydon CR0 0YN,

United Kingdom
(72) Inventors

TONKIN Mark Christopher, United Kingdom

WATSON Rebecca, United Kingdom

(74) Representative

HONEY & BLANCKENBERG
(51)  International  Classification   F16L 25/00 (2006.01)    F16L 13/00 (2006.01)

(54)    Title
Connector

(57)    Abstract

A connection system (100) comprises a connector (101) and a pipe (102). The pipe (101) is made from a hydrophilic membrane capable of pervaporating brackish water or such like as substantially pure water, such as Dutyion™. One feature of this material is that it expands significantly as it hydrates. The pipe (102) is generally cylindrical, but it is corrugated along its length, with roughly regular ridges (103) and grooves (104). The connector

(101) has a side wall (106) defining a substantially cylindrical cavity (107). The inside surface (108) of the cavity (107) is corrugated in the similar way

to

the pipe (102). When the pipe (102) is in a dehydrated state, the cavity (107) of the connector (101) has a maximum diameter D greater than the maximum

diameter B of the pipe (102) and a minimum diameter C less than the maximum diameter B of the pipe (102). The pipe (102) can be inserted in the cavity (107) of the connector in a dehydrated state. When the system (100) then carries water, the pipe (102) hydrates, which causes the pipe (102) to expand and its diameter to increase. This means that the ridges (103) of the pipe (102) expand into the grooves (110) of the cavity (107) and the pipe
(56)    Documents Cited :    FR-2655126 A    WO-2004099659 A    US-4819969 A    DE-20200501411 U1

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