David L Wheeler

US Patent:

6729240, May 4, 2004

Filed:

Nov 26, 2002

Appl. No.:

10/304495

Inventors:

Gregory H. Smith - Placentia CA
David M. Wheeler - Laguna Hills CA

Assignee:

The Boeing Company - Chicago IL

International Classification:

F42C 1540

US Classification:

102206, 102262, 102221

Abstract:

An ignition isolating interrupt control circuit ( ) includes a main transition circuit ( ) isolating a first activation circuit ( ) from an ignition circuit ( ). The main transition circuit ( ) includes a source terminal ( ) that is electrically coupled to and receives a first source power from the first activation circuit ( ). An input terminal ( ) is electrically coupled to a second activation circuit ( ) and receives an activation signal. An output terminal ( ) is electrically coupled to the ignition circuit ( ) and receives and supplies the first source power to the ignition circuit ( ) in response to the activation signal. A power source monitor cutoff circuit ( ) including a comparator is electrically coupled to the first activation circuit ( ) and to the ignition circuit ( ) and disables the ignition circuit ( ) when a source voltage level is less than a predetermined voltage level.

US Patent:

52160831, Jun 1, 1993

Filed:

Feb 5, 1992

Appl. No.:

7/831793

Inventors:

Robert H. Grubbs - South Pasadena CA
Douglas L. Gin - Pasadena CA
Vincent P. Conticello - Pasadena CA
Philip D. Hampton - Pasadena CA
David R. Wheeler - Los Alamos NM

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

C08F13008

US Classification:

5253265

Abstract:

The monomer cis-5,6-bis(trimethylsiloxy)-1,3-cyclohexadiene can be polymerized with certain catalysts, such as bis(allyltrifluoroacetato nickel (II)) and bis(allylpentafluorophenoxy nickel II). The resulting polymer is a precursor to poly(para-phenylene). Other substituted cyclohexadienes may also be polymerized by these catalysts to form useful polymers.

US Patent:

51284189, Jul 7, 1992

Filed:

Jan 29, 1991

Appl. No.:

7/647576

Inventors:

Robert H. Grubbs - South Pasadena CA
Douglas L. Gin - Pasadena CA
Vincent P. Conticello - Pasadena CA
Philip D. Hampton - Pasadena CA
David R. Wheeler - Los Alamos NM

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

C08F13008

US Classification:

5253265

Abstract:

The monomer cis-5,6-bis(trimethylsiloxy)-1,3-cyclohexadiene can be polymerized with certain catalysts, such as bis(allyltrifluoroacetato nickel (II) and bis(allylpentafluorophenoxy nickel II). The resulting polymer is a precursor to poly(para-phenylene). Other substituted cyclohexadienes may also be polymerized by these catalysts to form useful polymers.