Pressure-regulated gas gun

Patent 4616622 Issued on October 14, 1986. Estimated Expiration Date:

August 10, 2004. 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.

Abstract Claims Description Full Text

Patent References

1853129

2123324

2635599

3212489

3420220

3717947

3921614

Pressure control valve
Patent #: 4168721
Issued on: 09/25/1979
Inventor: Mueller, Jr.

Air gun and pressure relief valve therefor Patent #: 4304213
Issued on: 12/08/1981
Inventor: Jereckos

Inventor

Milliman, Keith

Assignee

The Coleman Company, Inc.

Application

No. 06/639399 filed on 08/10/1984

US Classes:

124/73, By valve means124/71, With control for discharge of fluid pressure124/76, Opened by spring-actuated means251/324Piston

Examiners

Primary: Hafer, Robert A.
Assistant: Muir, D. Neal

International Classes

F41B 11/32 (20060101)
F41B 11/00 (20060101)

Abstract

A gas gun includes a pressure regulator assembly which controls the velocity of projectiles fired by the gun by adjusting the pressure within the gas chamber of the gun. The regulator assembly includes a spring-biased piston which is slidable within a gas seal between a source of pressurized gas and the gas chamber. The piston is movable between a first position in which gas can flow from the source of pressurized gas to the gas chamber and a second position in which gas is prevented from flowing from the source of pressurized gas to the gas chamber. The force exerted on the piston by the spring can be adjusted to control the gas pressure at which the piston moves to its second position.