Improved directional gas pressure device

Abstract

A directional gas pressure device ( 1 ) comprises a body including an elongate slot ( 2 ) extending in the axial direction of the body the body providing a chamber having an opening ( 2 c ) in at least one end thereof; at least one closure member ( 3 ) adapted to engage with the at least one opening of said chamber; a tie member including an elongate element ( 6 ) and spaced apart stop members. The elongate slot of the body is adapted to receive the elongate element of the tie member.

1 . A directional gas pressure device comprising:
 a body providing a chamber having an opening in at least one end thereof;   at least one closure member adapted to engage with the at least one opening of said chamber; and   a tie member including an elongate element and spaced apart stop members.   
     
     
         2 . A directional gas pressure device according to  claim 1 , wherein the body includes an elongate slot extending in the axial direction and wherein the elongate slot of the body is adapted to receive the elongate element of the tie member. 
     
     
         3 . A directional gas pressure device according to  claim 1 , wherein at least one of the stop members includes a frusto-conically shaped portion. 
     
     
         4 . A directional gas pressure device according to  claim 1 , wherein the stop members are situated at opposing ends of the elongate element. 
     
     
         5 . A directional gas pressure device according to any preceding claim  claim 1 , comprising means for engaging the tie member to one of: the body and the at least one closure member. 
     
     
         6 . A directional gas pressure device according to  claim 5 , wherein the means for engaging the tie member to one of: the body and the at least one closure member comprises an element on each of the tie member and the one of: the body and the at least one closure member, the elements interfering. 
     
     
         7 . A directional gas pressure device according to  claim 1 , wherein the tie member comprises a plurality of ribs. 
     
     
         8 . A direction gas pressure device according to  claim 7 , wherein at least one of the plurality of ribs engages with a protrusion or detent in the one of: the body and the at least one closure member. 
     
     
         9 . A directional gas pressure device according to  claim 1 , wherein the device includes a cover, the cover adapted to enclose the body and to engage with the stop members of the tie member. 
     
     
         10 . A directional gas pressure device according to  claim 1 , further including at least one collar, the collar adapted to engage with a stop member. 
     
     
         11 . A directional gas pressure device according to  claim 10 , wherein the collar includes a sloping surface adapted to co-operate with a sloped surface provided by the frusto-conically shaped portion of the stop member. 
     
     
         12 . A directional gas pressure device according to  claim 10 , wherein the collar is comprised of at least two collar parts, each collar part being adapted to engage with and attach to another collar part to form the collar. 
     
     
         13 . A directional gas pressure device according to  claim 12 , wherein adjacent collar parts of the at least two collar parts are hinged together. 
     
     
         14 - 16 . (canceled) 
     
     
         17 . A directional gas pressure device according to  claim 12 , wherein each collar part includes a detent configured to receive the elongate element of the tie member. 
     
     
         18 . A directional gas pressure device according to  claim 1 , wherein at least one of the stop members includes a detent in its outer surface. 
     
     
         19 . A directional gas pressure device according to  claim 1 , wherein at least one of the stop members includes a protrusion extending from an end face thereof. 
     
     
         20 - 27 . (canceled) 
     
     
         28 . A directional gas pressure device according to  claim 1 , wherein the chamber is charged with pyrotechnic material and the device includes an initiator. 
     
     
         29 . (canceled) 
     
     
         30 . A body for a directional gas pressure device, the body including an elongate slot extending in the axial direction thereof, the body providing a chamber having an opening in at least one end thereof, the elongate slot adapted to receive an elongate element of a tie member. 
     
     
         31 . A body for a directional gas pressure device according to  claim 30 , further comprising at least one closure member adapted to engage with the at least one opening of said chamber. 
     
     
         32 . A body for a directional gas pressure device according to  claim 32 , further wherein the said chamber is charged with pyrotechnic material, and an initiator is situated in the body. 
     
     
         33 - 35 . (canceled)