Keith A Fuller

US Patent:

7384524, Jun 10, 2008

Filed:

Feb 27, 2003

Appl. No.:

10/386901

Inventors:

Kevin Kirby - Calabasas Hills CA, US
Keith C. Fuller - Los Angeles CA, US

Assignee:

HRL Laboratories, LLC - Malibu CA

International Classification:

G01N 27/407

US Classification:

204424, 205784, 429 22

Abstract:

The present invention relates to a sensor for and a method of detecting carbon monoxide in gas streams containing hydrogen. The sensor acts as a fuel cell and is comprised of a centrally placed membrane electrode assembly upon each side of which is positioned a current collector which has gas inlets that allow gas to flow to the membrane electrode assembly. Plates are positioned on each of the exterior surfaces of the current collectors such that when assembled, one side of the CO sensor forms an anode and the other side forms a cathode. At a constant voltage, a sample gas passes through the sensor such that low levels of Platinum on the sensor facilitate the detection of carbon monoxide. A reader attached to the sensor interprets the concentration of carbon monoxide and air is passed through the sensor for recalibration as needed.

US Patent:

53710665, Dec 6, 1994

Filed:

Jun 5, 1992

Appl. No.:

7/895247

Inventors:

Ricardo C. Pastor - Manhattan Beach CA
Antonio C. Pastor - late of Manhattan Beach CA
Luisa E. Gorre - late of Camarillo CA
Keith C. Fuller - Los Angeles CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

C01F 1102
C01G 302
H01L 3924

US Classification:

505500

Abstract:

A precursor material is superoxidized to a superconducting oxide material in an atmosphere containing a reactive component that reacts with and removes hydroxide ion (OH. sup. -), replacing it with peroxide ion (O. sup. -). Preferred reactive components include H. sub. 2 O. sub. 2, N. sub. 2 O, and I. sub. 2. The reactive component reacts with and removes hydroxide ion from the precursor material, to reach a higher oxidation state in the superconducting oxide material than possible by oxidation in molecular oxygen. The use of such a reactive component permits both faster oxidation of the precursor material at conventional temperatures and the use of lower temperatures to achieve oxidation.

US Patent:

53448162, Sep 6, 1994

Filed:

Feb 24, 1993

Appl. No.:

8/023749

Inventors:

Ricardo C. Pastor - Manhattan Beach CA
Antonio C. Pastor - late of Manhattan Beach CA
Luisa E. Gorre - late of Camarillo CA
Keith C. Fuller - Los Angeles CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

C01F 1102
C01G 302
H01L 3924

US Classification:

505490

Abstract:

High temperature superconducting oxide materials can be taken to a higher, but stable, state of oxidation by removing H-impurities, such as OH. sup. -, using I. sub. 2 /O. sub. 2 mixtures in a reactive atmosphere process. A higher T. sub. c and a narrower. DELTA. T-transition result.