Compressed air gun with single action pump

Details Compressed air gun with single action pump Compressed air gun with single action pump

1995-05-26

1997-12-30

Ricci, John A.

Mechanical guns and projectors

Fluid pressure

Provided by movement of user-actuated, projector-mounted...

124 63, 124 75, F41B 1100

Patent

active

057018790

ABSTRACT:
An air compressed gun (10) is provided having a stock (11), a barrel (12), a pressure chamber (16), a pressure actuatable release valve (18) and a manual air pump (14). The pump has an elongated cylinder (25) having a port (38) in fluid communication with the release valve, and a plunger (26) telescopically mounted for reciprocal movement within the cylinder. The plunger has an O-ring type seal (31). The forward movement of the plunger seal towards the port pressurizes air within the cylinder which is transferred to the release valve and pressure chamber. The continued movement of the plunger seal past the port causes a portion of the pressurized air to be released so as to actuate the pressure actuatable release valve to release the pressurized air within the pressure chamber into the barrel.

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patent: 5188557 (1993-02-01), Brown
patent: 5553598 (1996-09-01), Johnson et al.

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