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 (2c) 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.

IPC Classes  ?

• F42B 3/04 - Blasting cartridges, i.e. case and explosive for producing gas under pressure
• F42D 3/04 - Particular applications of blasting techniques for rock blasting

Abstract

A directional gas pressure device (1) comprises a body (2) having openings at each end thereof, a closure member (7) for each end thereof, a tie member extending through the body, the closure members (5) being attached to the tie member. The closure members are adapted to increase their size upon evolution of gas from a pyrotechnic charge material contained within the body.

IPC Classes  ?

• F42B 3/04 - Blasting cartridges, i.e. case and explosive for producing gas under pressure
• F42B 3/06 - Blasting cartridges, i.e. case and explosive for producing gas under pressure with re-utilisable case
• F42D 3/04 - Particular applications of blasting techniques for rock blasting