Plastic cartridge for a firing device, particularly a bolt gun

Details Plastic cartridge for a firing device, particularly a bolt gun Plastic cartridge for a firing device, particularly a bolt gun

1994-01-26

1996-02-20

Tudor, Harold J.

Ammunition and explosives

Jacketed or cartridge gas generator

For gas-powered tools or means

89 3501, 102281, 102466, 102470, 227 9, C06D 500

Patent

active

054920655

ABSTRACT:
A plastics cartridge has a cartridge body provided with a flange which has a plastic casing body, open on one side, is for accommodating a propellent charge and an ignition charge for igniting the propellant charge and has a plastics cover for closing the open end of the casing body. A flange is located on the end of the casing body on the cover side. if the cartridge body is inserted into the firing device, the flange extends into a space which passes out of a receiving chamber of a cartridge recess and is formed by cartridge recess and bottom of the breech of the firing device. In the section in which it extends in the propagation direction of the pressure wave arising on ignition of the propellent charge, the flange of the cartridge body is tapered--in the propagation direction--at least over a part of said section. The flange therefore forms a wedge which is inserted into the wedge-shaped space between the cartridge recess and bottom of the breech. Stresses arising in the direction of the flange are transferred via the wedge to the cartridge recess and bottom of the breech and are reduced. Even with thermoplastic plastic extrusions of material in the flange region can be prevented by this tapered gap effect.

REFERENCES:
patent: 4819562 (1989-04-01), Bowman
patent: 4920885 (1990-05-01), Bowman et al.
patent: 5036746 (1991-08-01), Ehmig et al.
patent: 5279201 (1994-01-01), Jena et al.

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