Reed E Donnard

US Patent:

40771474, Mar 7, 1978

Filed:

Jan 26, 1962

Appl. No.:

4/169153

Inventors:

Reed E. Donnard - Huntingdon Valley PA
Edward R. Hirsekorn - Philadelphia PA

International Classification:

F41C 300
F42B 500

US Classification:

42 1L

Abstract:

1. A device including an expendable cartridge-barrel assembly comprising a cartridge casing forming a barrel, the wall thickness of said barrel being at least equal to about the diameter of the bore therein, a retainer affixed to and rearwardly of said casing, a high energy propellant enclosed within said assembly, a primer within said retainer and communicating with said propellant, a projectile frictionally fitted within and extending along the bore of said barrel and having a rear end in proximate relation to said propellant, said projectile being designed for high sectional density and minimum drag with water, and a watertight seal affixed to a front end of said cartridge-barrel assembly.

US Patent:

47262966, Feb 23, 1988

Filed:

Apr 22, 1985

Appl. No.:

6/725405

Inventors:

Ervin Leshner - Cherry Hill NJ
Reed E. Donnard - Huntingdon Valley PA

Assignee:

Action Manufacturing Company - Philadelphia PA

International Classification:

F42B 530

US Classification:

102467

Abstract:

An ammunition cartridge has a plastic case and a metal base having a plurality of grooves around the periphery thereof. The plastic case has an interference fit with the base. The plastic creeps into the grooves after being interference fit over the base to relieve the stress in the plastic. A stress modulator ring surrounds the plastic member in the area of the grooves.

US Patent:

42167213, Aug 12, 1980

Filed:

Dec 22, 1972

Appl. No.:

5/316602

Inventors:

Samuel J. Marziano - Glenolden PA
Reed E. Donnard - Huntingdon Valley PA

Assignee:

The United Stated of America as represented by the Secretary of the Army - Washington DC

International Classification:

F42B 1124

US Classification:

102 90

Abstract:

Controlling the release from a conical ceramic crucible of molten thermite eaction products (generally, iron and alumina) to effect optimum penetration of metallic targets by said molten products through the use of metallic discs which are completely protected on their sides against the molten products, thus forcing these molten products to melt the discs sequentially from top to bottom, resulting in a delay of flow of the molten products from the conical crucible to thus permit the molten iron, heavier than the molten alumina, to substantially unimpededly transfer its heat to the metallic target, the molten iron being more efficient in melting metallic materials than the molten alumina.