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(11)    Patent No :    AP 1933   
(21)    Application No :    AP/P/2002/002631   
(22)    Filing Date :    22.02.2001   
(24)    Date of Grant &    05.01.2009   
           
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
AU    PQ 5910    29.02.2000

(84)    Designated State

BW    GM    GH    KE    LS   MW  MZ   SL   SD
SZ    T Z    UG    ZM    ZW
 

(73) Applicant(s)

ROCKTEK LIMITED, Lot 333, Harries Way, Pinjarra WA 6208,
Australia


(72) Inventors

TOTA Edward, Australia

(74)    Representative

B. W. KAHARI LEGAL PRACTITIONERS
 

(51)  International  Classification   E21C 37/14 (2006.01)    F42B 3/00 (2006.01)
F42D 1/68 (2006.01)   


(54)    Title

Cartridge shell and cartridge for blast holes and method of use.

(57)    Abstract

A cartridge shell 10 comprises a main body 12 defining a volume for holding energetic material. The main body 12 has a first end 16 for location adjacent a toe 48 of hole 46 and a second end 18 directed to the collar 50 of hole 46. This second end 18 is tapered to reduce in transverse area away from the first

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