Jeffrey C Gilbert

US Patent:

20050146413, Jul 7, 2005

Filed:

Dec 24, 2003

Appl. No.:

10/746824

Inventors:

Patrick Carberry - Laurys Station PA, US
Jeffrey Gilbert - Schwenksville PA, US

International Classification:

H01C010/10

US Classification:

338047000

Abstract:

Electrical devices having tunable electrical characteristics are provided, such as variable resistors, capacitors and inductors. The tunable electrical characteristics are achieved by placing an appropriate material between substrate layers and by controllably applying a pressure to the material to compress the material or alter the shape of a well in which the material is contained, and thereby alter the electrical characteristics of the electrical device. The composition, shape and dimension of the embedded materials determine how the electrical characteristics of the electrical device are altered upon compression of the embedded material in response to an applied control signal. Generally, as the embedded material is compressed, the material will become more dense and the electrical characteristics of the integrated electrical device is altered.

US Patent:

46510192, Mar 17, 1987

Filed:

Nov 16, 1984

Appl. No.:

6/672477

Inventors:

Jeffrey G. Gilbert - Orefield PA
Alan G. Richenbacher - Coply PA
Eugene R. Smar - Rockville MD

Assignee:

Pennsylvania Power & Light Company - Allentown PA

International Classification:

H02J 000

US Classification:

307 43

Abstract:

A dual fueled thermoelectric generator wherein two different sources of energy are provided. The first source of energy is electrical energy which is tapped from an overhead transmission ground wire and converted into thermal energy by electric resistance heaters. The thermal energy produced is applied to a thermopile which converts it into DC electric energy. The second source is a fossil fuel which is converted into thermal energy when a burner is actuated. The thermal energy produced thereby is applied to a thermopile. The burner is actuated in response to either a loss of input voltage from the transmission ground wire or loss of output power from the thermopile. The fossil fuel is preferably propane and the output of the thermopile may be supplied to distributed loads, such as distributed fiber optic repeaters.