John Edward Stevenson

Address:

530 N Kenwood St APT 3, Glendale, CA 91206

Phone:

(818)5079113

VIN:

1A4GJ45R87B154653

Make:

CHRYSLER

Model:

TOWN AND COUNTRY

Year:

2007

US Patent:

8544633, Oct 1, 2013

Filed:

Mar 18, 2011

Appl. No.:

13/052000

Inventors:

John S. Stevenson - Anaheim CA, US
Derek L. Aldred - Granada Hills CA, US
Jeffery A. Rader - Burbank CA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B65G 17/36

US Classification:

198708, 198707, 198704

Abstract:

A system is provided with a segmented solid feed pump having a plurality of pump segments disposed along a closed-loop path. The plurality of pump segments are coupled together in series along the closed-loop path, and the plurality of pump segments move along the closed-loop path. Furthermore, each pump segment includes a holding receptacle.

US Patent:

8579103, Nov 12, 2013

Filed:

Oct 3, 2011

Appl. No.:

13/252044

Inventors:

John Saunders Stevenson - Anaheim CA, US
Derek Leslie Aldred - Granada Hills CA, US
Jeffrey Allen Rader - Burbank CA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B65G 17/12
B65G 31/02
B65G 31/04
B65G 19/16

US Classification:

198716, 198640, 198642, 198701, 198705, 198617, 406 99

Abstract:

A system includes a solid feed pump configured to transport a solid feedstock. The solid feed pump includes at least one passage for the transport of the solid feedstock. The solid feed pump also includes at least one movable wall configured to move along the passage. The solid feed pump further includes a retractable gripping element configured to extend from the at least one movable wall into the at least one passage to grip a portion of the solid feedstock. In addition, the retractable gripping element is configured to retract away from the at least one passage.

US Patent:

20130192137, Aug 1, 2013

Filed:

Jan 27, 2012

Appl. No.:

13/360542

Inventors:

John Saunders Stevenson - Anaheim CA, US
Shashishekara Sitharamarao Talya - Humble TX, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

B01J 7/00
C10J 3/46

US Classification:

48 61, 48197 R

Abstract:

A system includes a gasifier injector configured to inject a heat control fuel and a mixed air into a gasifier for combustion during a heat control mode. The heat control fuel is the same or different from the gasification fuel, and the system is configured to create the mixed air from independent supplies of oxygen and nitrogen.

US Patent:

20130192139, Aug 1, 2013

Filed:

Jan 27, 2012

Appl. No.:

13/360521

Inventors:

John Saunders Stevenson - Anaheim CA, US
Shashishekara Sitharamarao Talya - Humble TX, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

C10J 3/46
B01J 7/00

US Classification:

48197 R, 48 61

Abstract:

A system includes a gasifier configured to gasify a gasification fuel during a gasification mode. The system also includes a first injector configured to inject a heat control fuel and an oxygen enriched air into the gasifier for combustion during a heat control mode. The heat control fuel is the same or different from the gasification fuel, and the oxygen enriched air includes air enriched with additional oxygen.

US Patent:

D3170098, May 21, 1991

Filed:

May 10, 1989

Appl. No.:

7/349802

Inventors:

John E. Stevenson - Glendale CA

US Classification:

D14249

US Patent:

47055367, Nov 10, 1987

Filed:

Sep 2, 1986

Appl. No.:

6/902838

Inventors:

Michael W. Becker - Los Alamitos CA
John S. Stevenson - Gardena CA
Mitri S. Najjar - Hopewell Junction NY

Assignee:

Texaco, Inc. - White Plains NY

International Classification:

C10J 346

US Classification:

48197R

Abstract:

Process for the production of gaseous mixtures comprising H. sub. 2 +CO e. g. synthesis gas, reducing gas, or fuel gas by the partial oxidation of a vanadium-containing liquid hydrocarbonaceous fuel, solid carbonaceous fuel, or mixtures thereof in a free-flow vertical refractory lined gas generator. The feed mixture to the gas generator comprises (i) a vanadium-containing fuel; (ii) supplemental iron-containing ash fusion temperature reducing agent; and (iii) at least a portion of the remainder of the iron-containing slag after separation of an enriched vanadium-containing coarse slag fraction. The coarse slag fraction has a decreased Fe/V weight ratio and is formed by depositing a portion of the slag entrained in the hot raw effluent gas stream from the partial oxidation reaction zone on the walls of a slag separation chamber located between the bottom discharge outlet in the reaction zone and the effluent gas quench tank located at the bottom of the gas generator. It is economically advantageous to recover by-product vanadium from the coarse slag fraction in a metal refining plant.

US Patent:

45574030, Dec 10, 1985

Filed:

Apr 13, 1984

Appl. No.:

6/600275

Inventors:

John S. Stevenson - Los Angeles CA

Assignee:

Texaco Inc. - White Plains NY

International Classification:

G01F 1124

US Classification:

222252

Abstract:

A feeder for finely divided solids from atmospheric pressure into a high pressure atmosphere. It has a chute to hold the solids at atmospheric pressure, and a valve with seals to deliver the solids into a loading chamber. There is an arrangement for pressurizing the loading chamber, and the chamber is oriented so that the solids will discharge through another valve by gravity flow into the high pressure atmosphere after pressurization of the chamber. There is also an arrangement for displacing the high pressure atmosphere from the chamber after discharge of the solids and before the next delivery of another charge from the chute.

US Patent:

46246843, Nov 25, 1986

Filed:

Sep 3, 1985

Appl. No.:

6/772098

Inventors:

John S. Stevenson - Gardena CA

Assignee:

Texaco Inc. - White Plains NY

International Classification:

C10J 346

US Classification:

48197R

Abstract:

A partial oxidation process for the production of a stream of mixed gases comprising H. sub. 2 and CO. An aqueous particulate solid carbonaceous fuel slurry feedstream is preheated by indirect heat exchange with a process-derived stream of skimmed gases substantially comprising H. sub. 2 O. The aqueous carrier of the slurry is vaporized by introducing superheated steam directly into the slurry pipeline. A suspension of particulate solid carbonaceous fuel entrained in a gaseous mixture substantially comprising steam e. g. about 90 to 99. 9 wt. % H. sub. 2 O and about 0. 1 to 10 wt. % of a CO. sub. 2 -containing gas mixture is produced. The suspension of solid fuel in the gaseous mixture is then separated in a skimming operation into an overhead gas stream substantially comprising steam, as previously described, and a bottom stream comprising particulate solid carbonaceous fuel with the remainder of said gaseous mixture. The bottom stream from the skimming operation is introduced into the reaction zone of a partial oxidation gas generator in admixture with a free-oxygen containing gas and with or without a temperature moderator where a gaseous stream comprising H. sub. 2 +CO is produced.