John C Devins

US Patent:

46943757, Sep 15, 1987

Filed:

Mar 22, 1982

Appl. No.:

6/360264

Inventors:

John C. Devins - Burnt Hills NY
Matthew A. Dranchak - Mt. Laurel NJ
Stefan J. Rzad - Rexford NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

H01G 108

US Classification:

361212

Abstract:

An ionic material is added to a halocarbon insulating fluid used to cool high voltage equipment in order to prevent the buildup of electrtostatically generated charge. The ionic additive allows leakage of charge from the insulating fluid so as to prevent dangerously high voltage buildup while at the same time withstanding the high voltage applied to the system.

US Patent:

45220654, Jun 11, 1985

Filed:

Apr 2, 1984

Appl. No.:

6/595780

Inventors:

John C. Devins - Burnt Hills NY
Amandus H. Sharbaugh - Clifton Park NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01L 900

US Classification:

73705

Abstract:

The pressure of a gas within an enclosure is measured without making physical contact with the gas by focusing radiation from a laser onto a section of the gas and, while varying the intensity of the radiation, monitoring the section under measurement for electrical breakdown, as indicated by emitted light or suitable breakdown indicia, such as radio noise. The absolute gas pressure at the section of the gas under measurement is determined from a calibration curve relating the intensity of the beam to the pressure at which breakdown occurs for the particular gas being monitored.

US Patent:

49277049, May 22, 1990

Filed:

Apr 11, 1989

Appl. No.:

7/336277

Inventors:

Clive W. Reed - Scotia NY
Stefan J. Rzad - Rexford NY
John C. Devins - Burnt Hills NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

B05D 306

US Classification:

428221

Abstract:

An abrasion-resistant article and method for making is disclosed. The article includes a plastic substrate and a gradational coating applied by plasma-enhanced chemical vapor deposition to the surface thereof.

US Patent:

48429414, Jun 27, 1989

Filed:

Apr 6, 1987

Appl. No.:

7/034890

Inventors:

John C. Devins - Burnt Hills NY
Clive W. Reed - Scotia NY
Stefan J. Rzad - Rexford NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

B32B 2736
B05D 306
B05D 506

US Classification:

428412

Abstract:

An abrasion-resistant article and method for making is disclosed. The article includes a polycarbonate substrate, an interfacial layer of an adherent resinous composition on the substrate, and an abrasion-resistant top layer applied on the interfacial layer by plasma-enhanced chemical vapor deposition.

US Patent:

50513087, Sep 24, 1991

Filed:

Jan 25, 1990

Appl. No.:

7/469983

Inventors:

Clive W. Reed - Scotia NY
Stefan J. Rzad - Rexford NY
John C. Devins - Burnt Hills NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

B32B 2730
B32B 2708

US Classification:

428412

Abstract:

An abrasion-resistant article and method for making is disclosed. The article includes a plastic substrate and a gradational coating applied by plasma-enhanced chemical vapor deposition to the surface thereof.