Paul L Stewart

US Patent:

H2151, Feb 3, 1987

Filed:

May 2, 1985

Appl. No.:

6/729839

Inventors:

Paul L. Stewart - Joppa MD

Assignee:

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

International Classification:

F42B 2700

US Classification:

102487

Abstract:

This fuze is a subassembly of a spherical smoke grenade. The grenade compes a rubber case with the main charge therein. The fuze comprises a metal body one surface of which is sperhical and forms part of the spherical exterior of the grenade. The fuze comprises an arm/safe mechanism which includes pins, pull rings, a handle and a hermetically sealed delay ignition system which comprises a primer, two ignition mixes and a delay mix. The firing pin is mounted in a radial hole in the fuze body with an arm/safe pin mounted in another hole which is 90. degree. away from the firing pin hole. The arm/safe pin engages a slot in the firing pin to hold it in the safe or retracted position. The arm/safe mechanism is designed so that none of the parts thereof, except for the handle, can fly out as the grenade is thrown. The O-rings associated with the firing pin and the arm/safe pin are designed so that they provide a moisture proof seal during the shelf life of the grenade but when the grenade is thrown they do not produce any unwanted friction which might cause misfiring.

US Patent:

H1979, Aug 4, 1992

Filed:

May 28, 1991

Appl. No.:

7/706482

Inventors:

Michael J. Burnham - Kingsville MD
Donny W. Bromley - Bel Air MD
Paul L. Stewart - Joppa MD

Assignee:

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

International Classification:

G01D 1800
G01B 1502

US Classification:

378207

Abstract:

This invention provides a method used for radiographic inspection of matel within a container, where the container is a dense material and the contents to be radiographically inspected are of a less dense material.