Robert D Hatch

US Patent:

7033449, Apr 25, 2006

Filed:

Mar 10, 2003

Appl. No.:

10/385379

Inventors:

Ruth A. Schaefer - North Ogden UT, US
Robert L. Hatch - Wellsville UT, US
Daniel W. Doll - Ogden UT, US

Assignee:

Alliant Techsystems Inc. - Edina MN

International Classification:

C06B 25/34

US Classification:

149 92

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.

US Patent:

20050183803, Aug 25, 2005

Filed:

Jan 13, 2004

Appl. No.:

10/756192

Inventors:

Jeffrey Akester - Bountiful UT, US
Robert Hatch - Wellsville UT, US
Steven Nicolich - Wyckoff NJ, US

International Classification:

C06B045/10

US Classification:

149019200

Abstract:

A method of processing an explosive molding powder. The method comprises providing a nonaqueous slurry comprising at least one nitrate compound, an inert fluorocarbon medium, and, optionally, a water-reactive additive. The at least one nitrate compound comprises at least one nitramine, at least one nitrate ester, at least one nitrated aromatic, or mixtures thereof. A lacquer system comprising at least two organic solvents, at least one binder, and, optionally, at least one plasticizer is also provided. The organic solvents in the lacquer system may comprise at least one binder-soluble organic solvent and at least one binder-insoluble organic solvent. The nonaqueous slurry and the lacquer system are combined to form granules of the explosive molding powder. A lacquer system and solutions used in processing the explosive molding powder are also disclosed.

US Patent:

42664012, May 12, 1981

Filed:

Dec 22, 1977

Appl. No.:

5/863205

Inventors:

Robert B. Sumegi - Phoenix AZ
Geoffrey D. Woodhouse - Phoenix AZ
George B. Mattson - Scottsdale AZ
Harvey B. Jansen - Tempe AZ
Frederic E. Bolliger - Phoenix AZ
Robert A. Hatch - Boca Raton FL

Assignee:

The Garrett Corporation - Los Angeles CA

International Classification:

F02C 904

US Classification:

60 3916R

Abstract:

A control system for a gas turbine engine includes provisions for adjusting fuel flow in relation to gas generator speed, and for adjusting guide vane position in relation to power turbine speed.

US Patent:

42742536, Jun 23, 1981

Filed:

Dec 22, 1977

Appl. No.:

5/863365

Inventors:

Frederic E. Bolliger - Phoenix AZ
Geoffrey D. Woodhouse - Phoenix AZ
George B. Mattson - Scottsdale AZ
Bruce S. Anson - Phoenix AZ
Robert A. Hatch - Boca Raton FL

Assignee:

The Garrett Corporation - Los Angeles CA

International Classification:

F02C 902
F02C 904

US Classification:

60 3903

Abstract:

A recuperated gas turbine engine control and method which provides improved idling and limits both turbine inlet temperature and recuperator inlet temperature to different, preselected maximum levels.