Douglas Te Rodgers

US Patent:

6946215, Sep 20, 2005

Filed:

Jul 10, 2002

Appl. No.:

10/064408

Inventors:

Prodyot Roy - Saratoga CA, US
Samir Armando Salamah - Niskayuna NY, US
Douglas Noss Rodgers - San Jose CA, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H01M008/08
H01M008/14
H01M008/04

US Classification:

429 46, 429 15, 429 16

Abstract:

A fuel cell assembly comprises at least one fuel cell. The fuel cell comprises an anode and a cathode held in a spaced apart relationship by at least one spacer element comprising an electrically insulating material. A proximal end of the spacer element is in contact with the cathode, and a distal end is in contact with the anode. An electrolyte is disposed between, and in contact with the anode and the cathode. The electrolyte comprises a molten salt having a hydride ion conductance number greater than about 0. 95 at a fuel cell operating temperature. A fuel gas inlet, adjacent to the cathode, is provided for delivering a fuel gas to the electrolyte. An oxidizing gas inlet, adjacent to the anode, is provided for delivering an oxidizing gas to the electrolyte. An exhaust port is in fluid communication with the anode.

US Patent:

40653714, Dec 27, 1977

Filed:

Sep 26, 1975

Appl. No.:

5/616941

Inventors:

Douglas Noss Rodgers - San Jose CA
Prodyot Roy - Saratoga CA

Assignee:

General Electric Company - San Jose CA

International Classification:

G01N 2746

US Classification:

204195R

Abstract:

An electrochemical carbon meter is described which is especially useful for measuring the concentration of carbon in liquid sodium. The meter includes a carbon activity gas having a known ratio of carbon monoxide to carbon dioxide contained within a chamber as an intermediary between a diffusion membrane in contact with the sodium and an electrochemical cell. A calcium carbonate fixing compound is also located within the chamber for maintaining the concentration of carbon dioxide therein at a predetermined level. The chamber is fixed to the end of a probe tube which supports the same fully surrounded by liquid sodium to be maintained thereby at a uniform temperature.

US Patent:

43411240, Jul 27, 1982

Filed:

Nov 10, 1980

Appl. No.:

6/205414

Inventors:

Douglas N. Rodgers - San Jose CA
Manfred Siegler - San Jose CA
David Y. H. Shen - San Jose CA

Assignee:

General Electric Company - San Jose CA

International Classification:

G01N 110

US Classification:

7386301

Abstract:

An automatic sampling apparatus for particles suspended in liquid, which maintains particles in suspension by periodically directing and redirecting the liquid first down one branch of a manifold and then down another, and which selectively directs the liquid toward one or more of a plurality of filters, engaging in both operations under the direction of a programmable process controller. Liquid flow rate through the filters is metered, providing information regarding flow rate and volume to the process controller. A minimum of manual handling is required and user exposure to the sampling environment, which may be radioactive, is reduced.

US Patent:

51398958, Aug 18, 1992

Filed:

Jul 19, 1991

Appl. No.:

7/732964

Inventors:

Prodyot Roy - Saratoga CA
Douglas N. Rodgers - San Jose CA
Samir A. Salamah - San Jose CA

Assignee:

General Electric Company - San Jose CA

International Classification:

H01M 806

US Classification:

429 17

Abstract:

A system for converting heat energy into electricity includes a conversion cell comprising a pair of spaced-apart electrodes having an electrolyte therebetween. The electrolyte is selected to pass negatively-charged hydrogen ions and to inhibit the passage of atomic hydrogen and positive hydrogen ions. Inducing a flow of hydrogen through the cell, a current may be generated between the electrodes as electrons are gained by the hydrogen as it enters the cell and lost by the hydrogen as it leaves the cell. In the preferred embodiment, hydrogen flow is induced by reacting the hydrogen leaving the cell with a mixture of lithium and sodium to form the metal hydride. The metal hydride is then thermally decomposed to release the hydrogen and the molten metal to be recycled to the cell. In this way, the thermal energy used to decompose the metal hydride is converted into electrical energy by passing the hydrogen through the conversion cell.