JEFFREY TODD DEDERER
Pilots at Deer Spg Ln, Valencia, PA

5573867, Nov 12, 1996

Jan 31, 1996

8/594214

Paolo R. Zafred - Pittsburgh PA
Jeffrey T. Dederer - Valencia PA
James E. Gillett - Greensburg PA
Richard A. Basel - Plub Borough PA
Annette B. Antenucci - Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

H01M 804, H01M 824

429 17

A fuel cell generator apparatus and method of its operation involves: passing pressurized oxidant gas, (O) and pressurized fuel gas, (F), into fuel cell modules, (10 and 12), containing fuel cells, where the modules are each enclosed by a module housing (18), surrounded by an axially elongated pressure vessel (64), where there is a purge gas volume, (62), between the module housing and pressure vessel; passing pressurized purge gas, (P), through the purge gas volume, (62), to dilute any unreacted fuel gas from the modules; and passing exhaust gas, (82), and circulated purge gas and any unreacted fuel gas out of the pressure vessel; where the fuel cell generator apparatus is transpatable when the pressure vessel (64) is horizontally disposed, providing a low center of gravity.

5750278, May 12, 1998

Aug 10, 1995

8/513468

James E. Gillett - Greensburg PA
Jeffrey T. Dederer - Valencia PA
Paolo R. Zafred - Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

H01M 804, H01M 200

429 24

A mono-container fuel cell generator (10) contains a layer of interior insulation (14), a layer of exterior insulation (16) and a single housing (20) between the insulation layers, where fuel cells, containing electrodes and electrolyte, are surrounded by the interior insulation (14) in the interior (12) of the generator, and the generator is capable of operating at temperatures over about 650. degree. C. , where the combination of interior and exterior insulation layers have the ability to control the temperature in the housing (20) below the degradation temperature of the housing material. The housing can also contain integral cooling ducts, and a plurality of these generators can be positioned next to each other to provide a power block array with interior cooling.

5741605, Apr 21, 1998

Mar 8, 1996

8/613399

James E. Gillett - Greensburg PA
Jeffrey T. Dederer - Valencia PA
Paolo R. Zafred - Pittsburgh PA
Jeffrey C. Collie - Pittsburgh PA

Westinghouse Electric Corporation - Pittsburgh PA

H01M 810

429 31

A high temperature solid oxide fuel cell generator produces electrical power from oxidation of hydrocarbon fuel gases such as natural gas, or conditioned fuel gases, such as carbon monoxide or hydrogen, with oxidant gases, such as air or oxygen. This electrochemical reaction occurs in a plurality of electrically connected solid oxide fuel cells bundled and arrayed in a unitary modular fuel cell stack disposed in a compartment in the generator container. The use of a unitary modular fuel cell stack in a generator is similar in concept to that of a removable battery. The fuel cell stack is provided in a pre-assembled self-supporting configuration where the fuel cells are mounted to a common structural base having surrounding side walls defining a chamber. Associated generator equipment may also be mounted to the fuel cell stack configuration to be integral therewith, such as a fuel and oxidant supply and distribution systems, fuel reformation systems, fuel cell support systems, combustion, exhaust and spent fuel recirculation systems, and the like. The pre-assembled self-supporting fuel cell stack arrangement allows for easier assembly, installation, maintenance, better structural support and longer life of the fuel cells contained in the fuel cell stack.

5733675, Mar 31, 1998

Aug 23, 1995

8/518272

Jeffrey T. Dederer - Valencia PA
Charles A. Hager - Mars PA

Westinghouse Electric Corporation - Pittsburgh PA

H01M 818, H01M 810

429 19

An electrochemical fuel cell generator configuration is made having a generator section which contains a plurality of axially elongated fuel cells, each cell containing a fuel electrode, air electrode, and solid oxide electrolyte between the electrodes, in which axially elongated dividers separate portions of the fuel cells from each other, and where at least one divider also reforms a reformable fuel gas mixture prior to electricity generation reactions, the at least one reformer-divider is hollow having a closed end and an open end entrance for a reformable fuel mixture to pass to the closed end of the divider and then reverse flow and pass back along the hollowed walls to be reformed, and then finally to pass as reformed fuel out of the open end of the divider to contact the fuel cells, and further where the reformer-divider is a composite structure having a gas diffusion barrier of metallic foil surrounding the external walls of the reformer-divider except at the entrance to prevent diffusion of the reformable gas mixture through the divider, and further housed in an outer insulating jacket except at the entrance to prevent short-circuiting of the fuel cells by the gas diffusion barrier.

6221522, Apr 24, 2001

Sep 10, 1999

9/393560

Paolo R. Zafred - Murrysville PA
Jeffrey T. Dederer - Valencia PA
Gregory W. Tomlins - Pittsburgh PA
James M. Toms - Irwin PA
George R. Folser - Lower Burrell PA
Douglas S. Schmidt - Pittsburgh PA
Prabhakar Singh - Export PA
Charles A. Hager - Zelienople PA

Siemens Westinghouse Power Corporation - Orlando FL

H01M 810

429 31

A solid oxide fuel cell (40) having a closed end (44) and an open end (42) operates in a fuel cell generator (10) where the fuel cell open end (42) of each fuel cell contains a sleeve (60, 64) fitted over the open end (42), where the sleeve (60, 64) extends beyond the open end (42) of the fuel cell (40) to prevent degradation of the interior air electrode of the fuel cell by fuel gas during operation of the generator (10).

2013004, Feb 21, 2013

Aug 17, 2011

13/211354

James Winters - Latrobe PA, US
Frank T. Vereb - Coraopolis PA, US
Jeffrey Dederer - Valencia PA, US

WESTINGHOUSE ELECTRIC COMPANY LLC - Cranberry Township PA

G21C 9/00

376299

A nuclear plant auxiliary backup power system that uses decay heat following a plant shutdown to produce electrical power through a dedicated steam turbine/generator set. The decay heat produces a hot operating gaseous fluid which is used as a backup to run an appropriately sized turbine that powers an electrical generator. The turbine is configured to utilize a portion of the existing nuclear plant secondary system and exhausts the turbine exhaust to the ambient atmosphere. The system functions to both remove reactor decay heat and provide electrical power for plant systems to enable an orderly shutdown in the event traditional sources of electric power are unavailable.

6025083, Feb 15, 2000

Feb 25, 1998

9/030316

Stephen Emery Veyo - Murrysville PA
Jeffrey Todd Dederer - Valencia PA
John Thomas Gordon - Ambridge PA
Larry Anthony Shockling - Pittsburgh PA

Siemens Westinghouse Power Corporation - Orlando FL

H01M 800

429 13

An apparatus and method are disclosed for eliminating the chemical energy of fuel remaining in a fuel cell generator when the electrical power output of the fuel cell generator is terminated. During a generator shut down condition, electrically resistive elements are automatically connected across the fuel cell generator terminals in order to draw current, thereby depleting the fuel inventory in the generator. The invention provides a safety function in eliminating the fuel energy, and also provides protection to the fuel cell stack by eliminating overheating.

6255010, Jul 3, 2001

Jul 19, 1999

9/356919

Raymond A. George - Pittsburgh PA
Stephen E. Veyo - Murrysville PA
Jeffrey T. Dederer - Valencia PA

Siemens Westinghouse Power Corporation - Orlando FL

H01M 810

429 30

A pressurized fuel cell system (10), operates within a common pressure vessel (12) where the system contains fuel cells (22), a turbine (26) and a generator (98) where preferably, associated oxidant inlet valve (52), fuel inlet valve (56) and fuel cell exhaust valve (42) are outside the pressure vessel.