Research/Patents/US 4932327
US 4932327Tier 1 — UAP Program Assignee

LIQUID PROPELLANT GUN

Assignee

General Dynamics

Filed as: GENERAL DYNAMICS ARMAMENT SYSTEMS, INC.

Filed

Sep 8, 1986

Granted

Jun 12, 1990

Location

SHELBURNE VT US

Abstract

This invention provides an annular piston, annular control valve, liquid propellant gun system, having a dual angle injection mechanism to provide both bore and chamber gas requirements with a single injection control valve. The dual angle feature assures a stable combustion zone. A flexible lip on the projectile is used in conjunction with the dual angle injection mechanism to positively eliminate backflow of propellant through the injection mechanism during the ignition phase of the gun cycle.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Dec 2, 1987

Rescinded

Nov 14, 1989

Duration

1 year, 11 months

Inventor

  • 1MELVIN J. BULMAN

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records