Mechanical guns and projectors – Fluid pressure – Provided by movement of user-actuated – projector-mounted...
Patent
1994-11-23
1996-11-19
Ricci, John A.
Mechanical guns and projectors
Fluid pressure
Provided by movement of user-actuated, projector-mounted...
F41B 1114, F41B 1118, F41B 1122
Patent
active
055752705
ABSTRACT:
Improvements in hinged barrel air guns are disclosed where the air gun has a barrel 28 acting as a lever arm to compress a spring 4 attached to an axially movable piston 1 that is tightly inserted in a compression chamber 2 and has thrusting element 5 associated with the piston for compressing said spring and a safety catch 6 which locks the piston in a spring compressed position suitable for shooting. The improvements consist of producing the piston 1 in a tubular shape molded in plastic material, including a contoured end wall 8 and 11, a plate 9 resistant to wear providing a link between the piston, the thrusting element 5 and the safety catch 6, and a dense inertial element 10 integral with the tubular piston. A casing 27 completely covers the barrel body 28 except for its front and rear ends. Each of the two lateral sides of the rear end 29 of the casing 27 have recesses 31 to fit, in the closed position of the gun, with corresponding projecting ridges 32 on the inner wall of each one of the limbs of a fork 30a in a one-piece body that extends rearwardly to form the compression chamber.
REFERENCES:
patent: 2633839 (1953-04-01), Lawrence
patent: 3302319 (1967-02-01), Rosselet
patent: 3472218 (1969-10-01), La Mers
patent: 4367723 (1983-01-01), Resuggan
patent: 4848307 (1989-07-01), Tsao
patent: 4883042 (1989-11-01), Wackrow
patent: 5205271 (1993-04-01), Casas Salva
Industrias el Gamo, S.A.
Ricci John A.
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