Ruth A Schaefer

US Patent:

7459043, Dec 2, 2008

Filed:

Jul 31, 2003

Appl. No.:

10/631545

Inventors:

Reed J. Blau - Richmond UT, US
Ruth A. Schaefer - North Ogden UT, US
Marlin Bodily - Brigham City UT, US
Gary Chen - Succasunna NJ, US

Assignee:

Alliant Techsystems Inc. - Edina MN

International Classification:

C06B 43/00

US Classification:

1491094, 149 77, 149 2

Abstract:

A solid pyrotechnic composition having a flame temperature and exhibiting ballistic performance comparable to that of black powder, but which does not contain charcoal or sulfur, is provided, as is a method for making such composition. A solid pyrotechnic composition, and method for making the same, which has a flame temperature and exhibits ballistic performance comparable to that of boron/potassium nitrate and that is preferably free of boron is also provided.

US Patent:

20040200378, Oct 14, 2004

Filed:

Mar 10, 2003

Appl. No.:

10/385379

Inventors:

Ruth Schaefer - North Ogden UT, US
Robert Hatch - Wellsville UT, US
Daniel Doll - Ogden UT, US

International Classification:

F41A009/00

US Classification:

102/481000

Abstract:

An explosive composition having a main explosive and an additive, such as 2,4-dinitrophenylhydrazine. The explosive composition is resistant to slow cook-off. The main explosive includes Composition B or a Composition B replacement. The 2,4-dinitrophenylhydrazine is present in the explosive composition at less than or equal to approximately 5% by weight. An insensitive munition resistant to slow cook-off is also disclosed, as is a method of forming the explosive composition having a main explosive and 2,4-dinitrophenylhydrazine and a method of mitigating slow cook-off violence.