Mechanical guns and projectors – Fluid pressure – With control for discharge of fluid pressure
Patent
1997-11-21
1999-06-01
Eldred, J. Woodrow
Mechanical guns and projectors
Fluid pressure
With control for discharge of fluid pressure
124 73, 124 75, 124 76, 124 31, F41B 1100
Patent
active
059080248
ABSTRACT:
The breech block for pneumatic shooting device is utilized in weapons for expelling solid-state bodies or marking pellets. It has a simplified and easy for maintenance construction ensuring long term exploitation and minimum fluid consumption for one shot. The breech block comprises a housing 1 in which a barrel 2 is mounted. A step-shaped cylindrical bore is formed in the housing 1, and a piston 4 having two parts 9 and 10 of different diameters is placed in the bore. The step-shaped bore in the housing 1 has a portion 13 which diameter is greater than the diameter of the rear part 10 of the piston 4. The piston 4 is provided with an axial passage 14, the rear end of which being connected to radial openings 8 formed at the rear part 10 of the piston 4.
REFERENCES:
patent: 5280778 (1994-01-01), Kotsiopoulos
patent: 5383442 (1995-01-01), Tippmann
patent: 5494024 (1996-02-01), Scott
patent: 5497758 (1996-03-01), Dobbins et al.
patent: 5572982 (1996-11-01), Williams
patent: 5673679 (1997-10-01), Walters
patent: 5769066 (1998-06-01), Schneider
patent: 5778868 (1998-07-01), Shepherd
Bulforce Engineering Ltd.
Eldred J. Woodrow
LandOfFree
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