David Wade Lambert

US Patent:

6793389, Sep 21, 2004

Filed:

Oct 18, 2002

Appl. No.:

10/065447

Inventors:

Abhijeet V. Chavan - Carmel IN
James H. Logsdon - Kokomo IN
Dan W. Chilcott - Greentown IN
Han-Sheng S. Lee - Bloomfield Hills MI
David K. Lambert - Sterling Heights MI
Timothy A. Vas - Kokomo IN

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

G01K 702

US Classification:

374179, 374163, 374183, 374121, 136213

Abstract:

An integrated sensor comprising a thermopile transducer and signal processing circuitry that are combined on a single semiconductor substrate, such that the transducer output signal is sampled in close vicinity by the processing circuitry. The sensor comprises a frame formed of a semiconductor material that is not heavily doped, and with which a diaphragm is supported. The diaphragm has a first surface for receiving thermal (e. g. , infrared) radiation, and comprises multiple layers that include a sensing layer containing at least a pair of interlaced thermopiles. Each thermopile comprises a sequence of thermocouples, each thermocouple comprising dissimilar electrically-resistive materials that define hot junctions located on the diaphragm and cold junctions located on the frame. The signal processing circuitry is located on the frame and electrically interconnected with the thermopiles. The thermopiles are interlaced so that the output of one of the thermopiles increases with increasing temperature difference between the hot and cold junctions thereof, while the output of the second thermopile decreases with increasing temperature difference between its hot and cold junctions.

US Patent:

20110113932, May 19, 2011

Filed:

Nov 11, 2010

Appl. No.:

12/944577

Inventors:

David Lambert - Rincon GA, US
Melissa Hibbard Lambert - Rincon GA, US

Assignee:

OMEGA TECHNOLOGIES, INC. - Westlake Village CA

International Classification:

B25B 13/46
B25B 13/48

US Classification:

81 60, 81125

Abstract:

An air frame fastener wrench includes first and second handles pivotally attached to one another. A ratchet head of the first handle includes a selectively rotatable driver mateable with a socket. As the first and second handles are brought towards one another, the driver rotates the mated socket and an engaged collar of an air frame fastener. A key, which is connected to the first or second handle for preventing rotation of the key, extends through the ratchet head and prevents rotation of a pin of the air frame fastener as the collar is tightened thereto.