U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Pneumatic gun

Patent 5063905 Issued on November 12, 1991. Estimated Expiration Date: Icon_subject September 6, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2505972

2554116

2817328

2940438

3103212

3177863

3547095

3612026

3788298

3824981

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Inventor

Application

No. 579057 filed on 09/06/1990

US Classes:

124/72, For continual projection of successive projectiles (e.g., for "rapid fire", etc.)124/74, For discharge of pressure from removably mounted cartridge124/76Opened by spring-actuated means

Examiners

Primary: Cuomo, Peter M.
Assistant: Thompson, Jewel V.

International Class

F41B 011/00

Abstract

A pneumatic gun incorporating a striker (50) moving in response to the urging of a compressed power spring (77) from a cocked position in a striker chamber (46) to impact on a primary valve assembly (80) and thereby effect the release of compressed gas for propelling a projectile from the gun and for recocking the striker (50) is disclosed. The primary valve assembly (80) incorporates a single full-pressure main valve (87) for regulating the release of all compressed gas, and a unidirectional low pressure secondary valve (88) for providing a portion of the compressed gas released by the main valve to the striker chamber (46) for urging the striker (50) to move back to the cooked position. The striker (50) incorporates a striker poppet valve (70) which permits gas to escape from the striker chamber (46) as the striker (50) moves to impact on the primary valve assembly (80), and which seals the striker chamber (46) against premature loss of the compressed gas which is urging the striker (50) back toward the cocked position.

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