Donald Karl Poole

US Patent:

55452728, Aug 13, 1996

Filed:

Aug 21, 1995

Appl. No.:

8/517564

Inventors:

Donald R. Poole - South Colby WA
Gary F. Holland - Snohomish WA
Nicholas A. Wolf - Renton WA
Michael A. Wilson - Bothell WA

Assignee:

Olin Corporation - Redmond WA

International Classification:

C06B 3156

US Classification:

149 48

Abstract:

There is provided a gas generating composition consisting essentially of a mixture of nitroguanidine and phase stabilized ammonium nitrate. When the ammonium nitrate is phase stabilized with from about 7% to about 20%, by weight, of a potassium salt, the mixture is structurally and volumetrically stable over typical automotive operating temperatures and has a melting temperature in excess of 100. degree. C. The mixture generates large volumes of nitrogen and carbon dioxide when ignited with minimal generation of solids or toxic gases and is particularly useful as an inflating medium for automobile airbags.

US Patent:

58668420, Feb 2, 1999

Filed:

Jul 18, 1996

Appl. No.:

8/683286

Inventors:

Kimberly A. Wilson - Seattle WA
Michael A. Wilson - Bothell WA
Donald R. Poole - South Colby WA
Gary F. Holland - Snohomish WA

Assignee:

Primex Technologies, Inc. - Redmond WA

International Classification:

C06B 4510
C06B 3500

US Classification:

149 196

Abstract:

A low temperature autoigniting composition for use in a mobile occupant restraint system comprising, a low temperature melting oxidizer and a fuel, wherein the low temperature autoigniting composition autoignites in the temperature range of about 130. degree. C. to about 175. degree. C. In a preferred embodiment, the composition comprises a low temperature melting oxidizer, a fuel, and a catalyst, wherein the composition autoignites in the temperature range of about 130. degree. C. to about 150. degree. C. Preferably, the oxidizer comprises about 20 to about 70 percent by weight of the composition, the fuel comprises about 10 to about 50 percent by weight of the composition, and the catalyst comprises about 2 to about 50 percent by weight of the composition. The autoignition propellants of the invention are designed to function at low temperatures and before heat damage to an airbag deployment mechanism can occur, for example, during a fire.

US Patent:

42748933, Jun 23, 1981

Filed:

Mar 26, 1979

Appl. No.:

6/023786

Inventors:

James E. Mars - Vashon WA
Donald R. Poole - Woodinville WA
Eckart W. Schmidt - Bellevue WA
Charles Wang - Lafayette IN

Assignee:

Rocket Research Company - Redmond WA

International Classification:

C06B 4500

US Classification:

149 2

Abstract:

A two component, high temperature, thermally stable explosive composition comprises a liquid or low melting oxidizer and a liquid or low melting organic fuel. The oxidizer and fuel in admixture are incapable of substantial spontaneous exothermic reaction at temperatures on the order of 475. degree. K. At temperatures on the order of 475. degree. K. , the oxidizer and fuel in admixture have an activation energy of at least about 40 kcal/mol. As a result of the high activation energy, the preferred explosive compositions are nondetonable as solids at ambient temperature, and become detonable only when heated beyond the melting point. Preferable oxidizers are selected from alkali or alkaline earth metal nitrates, nitrites, perchlorates, and/or mixtures thereof. Preferred fuels are organic compounds having polar hydrophilic groups. The most preferred fuels are guanidinium nitrate, acetamide and mixtures of the two.

US Patent:

57837732, Jul 21, 1998

Filed:

Sep 21, 1995

Appl. No.:

8/531631

Inventors:

Donald R. Poole - Port Orchard WA

Assignee:

Automotive Systems Laboratory Inc. - Farmington Hills MI

International Classification:

C06B 4708

US Classification:

149 36

Abstract:

Gas generant compositions without highly toxic azides are provided which, upon combustion, are converted into gaseous products with only small amounts of solid combustion products thereby minimizing the gas filtration problem. Gas generants having ammonium nitrate safely phase stabilized by mixture with wet triaminoguanidine are provided. A process for safely preparing the gas generants is also provided. These compositions are especially suitable for inflating automotive and aircraft occupant restraint bags.