F - Mech Eng,Light,Heat,Weapons – 42 – B
Patent
F - Mech Eng,Light,Heat,Weapons
42
B
102/11
F42B 3/00 (2006.01) F42B 3/087 (2006.01)
Patent
CA 1075971
ABSTRACT A chub cartridge containing a water-bearing blast- ing agent and having a film wrap of a cross-laminate of oriented film layers has at least one unlaminated zone in the film wrap in the longitudinal direction, or preferably is adapted to form a zone of multiple delaminations along said direction by virtue of scoring, the latter being the site of delamination when the cartridge has end-pressure ap- plied to it with a tamping rod. The different layers fall in different directions along the unlaminated zone, affording a measure of integrity to the cartridge if roughly handled, as well as ease of rupture on tamping. The cartridge also has good abrasion and tear resistance, and dimensional stability.
275129
Simmons Walter J.
Willis Frank M.
E.i. Du Pont de Nemours And Company
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