Singaravelu E Elangovan

6368739, Apr 9, 2002

Sep 8, 1999

09/391947

Lyman J. Frost - North Canton OH
Singaravelu Elangovan - Sandy UT
Joseph Jay Hartvigsen - Kaysville UT
Mark Timper - Salt Lake City UT
Dennis L. Larsen - West Valley City UT

Sofco - Salt Lake City UT

H01M 810

429 30

The invention comprises a solid oxide fuel cell system comprising at least two solid oxide fuel cell stacks and at least one extension member. Each solid oxide fuel cell stack includes a plurality of solid oxide fuel cells. Each cell is separated by an interconnect. The extension member joins at least one interconnect of one of the solid oxide fuel cell stacks with a corresponding interconnect of another of the solid oxide fuel cell stacks. The invention further includes a method of fabrication.

7258820, Aug 21, 2007

Mar 5, 2004

10/708475

Singaravelu Elangovan - Sandy UT, US
Balakrishnan G. Nair - Sandy UT, US
Troy A. Small - Midvale UT, US

Ceramatec, Inc. - Salt Lake City UT

H01B 1/08

2525181, 2525211, 2525205, 95 55

A multi-phase mixed protonic/electronic conducting material comprising a proton-conducting ceramic phase and an electron conductive ceramic phase. Under the presence of a partial pressure gradient of hydrogen across the membrane, a membrane fabricated with this material selectively transports hydrogen ions through the protonically conductive ceramic phase and electrons through the electronically conducting ceramic phase, which results in ultrahigh purity hydrogen permeation through the membrane. The material has a high electronic conductivity and hydrogen gas transport is rate-limited by the protonic conductivity of the material.

7976686, Jul 12, 2011

Jul 23, 2007

11/781718

Singaravelu Elangovan - South Jordan UT, US
Joseph J. Hartvigsen - Kaysville UT, US

Ceramatec, Inc. - Salt Lake City UT

C25B 9/10

204252, 204263, 204266, 204291

An electrolyzer cell is disclosed which includes a cathode to reduce an oxygen-containing molecule, such as H2O, CO2, or a combination thereof, to produce an oxygen ion and a fuel molecule, such as H2, CO, or a combination thereof. An electrolyte is coupled to the cathode to transport the oxygen ion to an anode. The anode is coupled to the electrolyte to receive the oxygen ion and produce oxygen gas therewith. In one embodiment, the anode may be fabricated to include an electron-conducting phase having a perovskite crystalline structure or structure similar thereto. This perovskite may have a chemical formula of substantially (Pr(1-x)Lax)(z-y)A′yBO(3-∂), wherein 0≦x≦0. 5, 0≦y≦0. 5, and 0. 8≦z≦1. 1. In another embodiment, the cathode includes an electron-conducting phase that contains nickel oxide intermixed with magnesium oxide.

8153855, Apr 10, 2012

Apr 16, 2007

12/227353

Kiyoshi Asahina - Kobe, JP
Masato Katayama - Kobe, JP
Ryusuke Kitamura - Kobe, JP
Joseph J. Hartvigsen - Salt Lake City UT, US
Singaravelu Elangovan - Salt Lake City UT, US

Kobe Steel, Ltd. - Hyogo
Ceramatec, Inc. - Salt Lake City UT

B09B 3/00

588403, 588900, 422168

The object is to rapidly clean-up an off-gas generated by blasting in a pressure vessel to such a level as to permit the exhaust of the off-gas. An object to be blasted is blasted in a pressure vessel to generate an off-gas, which is introduced into a combustion furnace to burning a combustible component contained in the off-gas. The off-gas after the burning in a reservoir section is stored in the reservoir section, and exhausted out of the reservoir section if a component contained in the off-gas complies a predetermined emission requirement, otherwise returned to at least one of the pressure vessel and the combustion furnace to be re-treated if the component does not comply the emission requirement.

8618436, Dec 31, 2013

Jul 12, 2007

11/777242

Joseph J. Hartvigsen - Kaysville UT, US
Singaravelu Elangovan - South Jordan UT, US
Michele Hollist - South Jordan UT, US
Piotr Czernichowski - Layton UT, US

Ceramatec, Inc. - Salt Lake City UT

B23K 10/00

21912159, 21912143, 21912155, 588900

A method and apparatus for oxidizing a combustible material. The method includes introducing a volume of the combustible material into a plasma zone of a gliding electric arc oxidation system. The method also includes introducing a volume of oxidizer into the plasma zone of the gliding electric arc oxidation system. The volume of oxidizer includes a stoichiometrically excessive amount of oxygen. The method also includes generating an electrical discharge between electrodes within the plasma zone of the gliding electric arc oxidation system to oxidize the combustible material.

20070259228, Nov 8, 2007

May 8, 2007

11/745942

Joseph J. Hartvigsen - Kaysville UT, US
Singaravelu Elangovan - South Jordan UT, US
Piotr Czernichowski - Layton UT, US
Michele Hollist - South Jordan UT, US
Michael Boettcher - Salt Lake City UT, US

H01M 8/06
B01J 19/00

429 20, 422198

A reformer is disclosed in one embodiment of the invention as including a channel to convey a preheated plurality of reactants containing both a feedstock fuel and an oxidant. A plasma generator is provided to apply an electrical potential to the reactants sufficient to ionize one or more of the reactants. These ionized reactants are then conveyed to a reaction zone where they are chemically transformed into synthesis gas containing a mixture of hydrogen and carbon monoxide. A heat transfer mechanism is used to transfer heat from an external heat source to the reformer to provide the heat of reformation.

52699021, Dec 14, 1993

Aug 20, 1992

7/932759

Ashok C. Khandkar - Salt Lake City UT
Singaravelu Elangovan - Sandy UT

Gas Research Institute, Inc. - Chicago IL

G01N 2726

204426

A module for an ion-conducting device includes a plurality of spaced-apart, solid state ion-conducting electrolyte elements arranged substantially radially around a central plenum. A plurality of longitudinal gas flow channels is sealed off from the central plenum by a plurality of seals, and extend longitudinally through the module in the spaces between every other adjacent pair of electrolyte elements. A plurality of transverse gas flow channels is in fluid communication with the central plenum, and extend generally radially outward from it through the spaces between every-other adjacent pair of electrolyte elements not constituting a longitudinal gas flow channel. Manifold plates having a plenum aperture and a plurality of gas apertures therein are disposed on either side of the radially arranged electrolyte elements, and sandwich the elements therebetween. A plurality of the modules may be juxtaposed in a modular assembly wherein the central plenums of adjacent modules are aligned and in register, and combine to form an extended central plenum, the transverse gas flow channels in each module extend generally radially from the extended central plenum, and the longitudinal gas flow channels of adjacent modules are aligned and in register and in fluid communication and form extended longitudinal gas flow channels.

57120552, Jan 27, 1998

Feb 28, 1997

8/808123

Ashok C. Khandkar - Salt Lake UT
Singaravelu Elangovan - Sandy UT

Gas Research Institute - Chicago IL

H01M 810

429 31

A multi-stage arrangement for the electrolyte material in a SOFC electrochemical power system. Multiple stages may be arranged in series, and each stage contains electrolyte elements which are constructed of a different material from the elements in previous and subsequent stages. A fuel gas admitted to the power system flows serially through each stage and is then exhausted from the power system. Upstream stages contain electrolyte elements made from an electrolyte material having low ion conductivity and high resistance. Subsequent stages contain electrolytes having progressively higher conductivity and progressively lower resistance. The fuel exhaust from an upstream stage is fed to the next downstream stage until the gas is exhausted from the final stage in the power system. Each stage operates at a progressively lower temperature than the previous stage. In a three-stage embodiment, a first stage has ZrO. sub.