Inder K Magoon

US Patent:

45235082, Jun 18, 1985

Filed:

Nov 2, 1983

Appl. No.:

6/547959

Inventors:

Robert E. Mayer - Williamstown MA
Inder K. Magoon - Pittsfield MA
Herbert J. West - Pittsfield MA

Assignee:

General Electric Company - Fairfield CT

International Classification:

F41F 104

US Classification:

89 7

Abstract:

A regenerative liquid propellant gun structure in which the differential area piston is annular, having a peripheral cylindrical skirt extending away from the combustion chamber to define a propellant reservoir, and has an aperture permitting overrunning of a fixed bolt. The fixed bolt is shaped to define with the edge of the aperture a variable annual orifice for propellant injection as the piston moves. There is a second free piston overrunning the bolt and mating with the inside of the differential area piston to complete and provide for emptying of the reservoir. The structure also contains a spring to allow components to move responsive to increased combustion chamber pressure to provide for an initial movement of differential area piston relative to the bolt to start propellant injection and a fluid pressure means for movement of pistons after firings to facilitate reloading.

US Patent:

45235074, Jun 18, 1985

Filed:

Nov 2, 1983

Appl. No.:

6/547958

Inventors:

Inder K. Magoon - Pittsfield MA

Assignee:

General Electric Company - Fairfield CT

International Classification:

F41F 104

US Classification:

89 7

Abstract:

A regenerative liquid propellant gun structure in which the differential area piston is annular, having a peripheral cylindrical skirt extending away from the combustion chamber to define a propellant reservoir, and has an aperture permitting overrunning of a fixed bolt. The fixed bolt is shaped to define with the edge of the aperture a variable annual orifice for propellant injection as the piston moves. There is a second free piston overrunning the bolt and mating with the inside of the differential area piston to complete and provide for emptying of the reservoir. The structure also contains a spring to allow components to move responsive to increased combustion chamber pressure to provide for an initial movement of differential area piston relative to the bolt to start propellant injection and a fluid pressure means for movement of pistons after firings to facilitate reloading.

US Patent:

46931651, Sep 15, 1987

Filed:

Jun 27, 1986

Appl. No.:

6/879723

Inventors:

Inder K. Magoon - Pittsfield MA
Robert E. Mayer - Williamstown MA

Assignee:

General Electric Company - Pittsfield MA

International Classification:

F41F 104

US Classification:

89 7

Abstract:

This invention provides a liquid propellant gun embodying a first species of this invention wherein the inner differential area piston is controlled by a variable damping mechanism, and both pistons have respective cross-sectional areas coupled to the pumping chamber.

US Patent:

45864225, May 6, 1986

Filed:

Apr 10, 1984

Appl. No.:

6/598783

Inventors:

Inder K. Magoon - Pittsfield MA

Assignee:

General Electric Company - Fairfield CT

International Classification:

F41F 104

US Classification:

89 7

Abstract:

A regenerative liquid propellant gun structure in which the differential area piston is annular, has an open peripheral cylindrical skirt extending away from the combustion chamber to define a propellant reservoir, and has an aperture in the piston head permitting overrunning of a fixed bolt. The fixed bolt is cylindrical with an enlarged band to fit the aperture to block flow of propellant until firing and to define with the edge of the aperture a variable annual orifice for propellant injection as the piston moves. There is a second free piston overrunning the bolt having a forward portion mating with both the inside of the differential area piston and the exterior of the cylindrical skirt so that the skirt constitutes a piston in a circular dashpot in the second piston. The second piston also contains a fluid accumulator, fluid conduit means interconnecting the accumulator and the dashpot and means for changing the cross sectional area of the fluid conduit means to provide a variable hydraulic resistance to the differential area piston during firing.

US Patent:

47458410, May 24, 1988

Filed:

Mar 30, 1987

Appl. No.:

7/031960

Inventors:

Inder K. Magoon - Pittsfield MA
Robert E. Mayer - Williamstown MA

Assignee:

General Electric Company - Pittsfield MA

International Classification:

F41F 104

US Classification:

89 7

Abstract:

This invention provides a liquid propellant gun embodying a first species of this invention wherein the inner differential area piston is controlled by a variable damping mechanism, and both pistons have respective cross-sectional areas coupled to the pumping chamber.