Mark J Spencer

US Patent:

58463550, Dec 8, 1998

Filed:

Mar 22, 1996

Appl. No.:

8/621806

Inventors:

Mark S. Spencer - Phoenix AZ
Edward A. Rubin - Phoenix AZ

Assignee:

W. L. Gore & Associates, Inc. - Newark DE

International Classification:

B65H 8106

US Classification:

156 53

Abstract:

The present invention is an improved jacketing material for all forms of electro-magnetic energy conductors. The jacket material of the present invention comprises a silicone material that is imbibed into a porous polymer, such as expanded polytetrafluoroethylene, to produce a flexible and durable composite. When applied as a cable jacket, the composite material of the present invention produces dramatic improvement over the use of silicone alone, especially in the areas of load sharing, resistance to fatigue from repeated flexure, and resistance to harsh environmental conditions. The ability of the material of the present invention to withstand repeated autoclave cycles without compromise makes it particularly suitable for cable jacketing in biomedical applications.

US Patent:

50263021, Jun 25, 1991

Filed:

Jun 8, 1990

Appl. No.:

7/535795

Inventors:

Mark Spencer - Maricopa AZ

Assignee:

W. L. Gore & Associates, Inc. - Newark DE

International Classification:

H01R 1300

US Classification:

439573

Abstract:

The use of a connector with an axially movable coupling interface prevents cracking when it is connected to a hermetically sealed electronic device in which the hermetic seal is provided by a glass or ceramic feed through.

US Patent:

51987643, Mar 30, 1993

Filed:

Feb 22, 1991

Appl. No.:

7/660518

Inventors:

Mark E. Spencer - Mesa AZ

Assignee:

Sentech Corp. - Tempe AZ

International Classification:

G01B 714
G01R 3312
G01N 2772
G01V 310

US Classification:

32420726

Abstract:

A position detection method and apparatus is disclosed which utilizes an electromagnetic probe as the control element in a relaxation oscillator circuit. The probe is energized by a pulse voltage waveform and the decay time of the induced transient probe voltage is utilized to modulate the frequency of the pulse generator. The probe transient voltage decay time is influenced by the proximity of an electrically conductive or magnetic object. Therefore, a frequency output is generated which indicates the position of the conductive or magnetic object.

US Patent:

55930980, Jan 14, 1997

Filed:

Jun 7, 1996

Appl. No.:

8/659878

Inventors:

Mark W. Spencer - Delafield WI
Donald C. Cheesman - Oconomowoc WI

International Classification:

B02C 1840
B02C 2318

US Classification:

241 4601

Abstract:

Pulping of waste paper is accomplished by the apparatus of this invention which includes a water supply and twin tube cylinder tanks mounted horizontally, and a shaft extending inside of the tanks, and flinger arms attached to the shafts, and the shafts rotate, being driven by electric motors, to pulp the waste paper in a water suspension, and the pulp slurry screened through a bank or plurality of perforated troughs and a perforated screw conveyor mounted in the perforated trough.

US Patent:

54969700, Mar 5, 1996

Filed:

Sep 20, 1994

Appl. No.:

8/309375

Inventors:

Mark S. Spencer - Phoenix AZ

Assignee:

W. L. Gore & Associates, Inc. - Newark DE

International Classification:

H01B 700
H05K 100
H01R 907
H01R 1364

US Classification:

174117F

Abstract:

This invention provides a high-density planar contact array capable of interconnecting various electronic devices using a pad to pad approach or pad to pin, which is capable of accommodating non-coplanarity in the Z axis of printed circuit boards but which still maintains good electrical contact. The array comprises an insulative substrate sheet that has a plurality of parallel conductive lines terminating in a pad over a hole in the substrate.

US Patent:

52032027, Apr 20, 1993

Filed:

Feb 25, 1992

Appl. No.:

7/841135

Inventors:

Mark Spencer - Phoenix AZ

Assignee:

W. L. Gore & Associates, Inc. - Newark DE

International Classification:

G01M 304
G01M 314

US Classification:

73 405R

Abstract:

A leak detection assembly that employs a layer of pliable conductive construction between a fluid conduit or tube and a tape containing signal carrying elements disposed along the length of the tape. The signal carrying element can be a series of parallel electrical conductors disposed longitudinally.

US Patent:

57310734, Mar 24, 1998

Filed:

Oct 1, 1996

Appl. No.:

8/724393

Inventors:

Bradley D. Knott - Phoenix AZ
Carmine G. Meola - Elkton MD
David L. Murray - Chandler AZ
Mark Stephen Spencer - Phoenix AZ

Assignee:

W. L. Gore & Associates, Inc. - Newark DE

International Classification:

B32B 326
B32B 2714
B32B 514
B32B 712

US Classification:

4283044

Abstract:

The invention relates to an open cell, porous, selectively conductive member containing an elastomer that is reusable in use and preparation. The scaffold for the elastomer has conductive areas through conductive, z-axis pathways are provided which are electrically isolated from adjacent z-axis conductive pathways. The elastomer is non-adhesive and/or non tacky and allows for temporary connection of electronic components.

US Patent:

58864130, Mar 23, 1999

Filed:

Oct 9, 1997

Appl. No.:

8/948807

Inventors:

Bradley D. Knott - Phoenix AZ
Carmine G. Meola - Elkton MD
David L. Murray - Chandler AZ
Mark Stephen Spencer - Maricopa AZ

Assignee:

Gore Enterprise Holdings, Inc. - Newark DE

International Classification:

H01L 2348
H01L 2940

US Classification:

257778

Abstract:

The invention relates to an open cell, porous, selectively conductive member containing an elastomer that is reusable in use and preparation. The scaffold for the elastomer has conductive areas through conductive, z-axis pathways are provided which are electrically isolated from adjacent z-axis conductive pathways. The elastomer is non-adhesive and/or non tacky and allows for temporary connection of electronic components.