David Lewin Warren

US Patent:

D458201, Jun 4, 2002

Filed:

Dec 29, 1998

Appl. No.:

29/098387

Inventors:

David L. Warren - Richmond VA 23220

International Classification:

1216

US Classification:

D12194, D12400

US Patent:

D488572, Apr 13, 2004

Filed:

Sep 5, 2001

Appl. No.:

29/147650

Inventors:

David Warren - Richmond VA 23220

International Classification:

2606

US Classification:

D26 28, D12 96

US Patent:

8304730, Nov 6, 2012

Filed:

Jun 1, 2010

Appl. No.:

12/791604

Inventors:

Nielson Wade Schulenburg - Herndon VA, US
David Wheeler Warren - Los Angeles CA, US
Donald J. Rudy - San Pedro CA, US
Michael G. Martino - Inwood WV, US
Mark Alan Chatelain - Amissville VA, US
Michael Arthur Rocha - Centreville VA, US

Assignee:

The Aerospace Corporation - El Segundo CA

International Classification:

G01J 5/00

US Classification:

2503381

Abstract:

A method for measuring spectral characteristics includes capturing spectral-spatial data that includes radiance measurements over spectrally flat, highly emissive surface portions of a sample material and heater at least two different heater temperatures for transmissive and/or emissive configurations. Temperatures of the sample material and heater are determined at the different heater temperatures for each configuration using, in each instance, radiance measurements taken after the temperatures of the heater and sample material have both stabilized. The transmissivity of the sample material is determined using the temperatures determined in the transmissive configuration and spectral-spatial data collected at selected points of interest over the sample material. The emissivity of the sample material is determined using the temperatures determined in the emissive configuration, the spectral-spatial data collected at selected points of interest over the sample material, and the transmissivity. The reflectivity of the sample material is determined using the emissivity and transmissivity.

US Patent:

8307566, Nov 13, 2012

Filed:

Apr 29, 2011

Appl. No.:

13/097278

Inventors:

Ahmed Nadim Khan - Burton on Trent, GB
Brian David Schroeder - Lancaster TX, US
David Warren - Plano TX, US
Julian Romanczukiewicz - Plano TX, US

Assignee:

Frito-Lay Trading Company GmbH - Bern

International Classification:

B23Q 17/22

US Classification:

33641

Abstract:

A blade gap setting device for a potato chip cutting head, the device comprising an elongate body having an upper surface and a lower surface, at least one mounting for a depth micrometer having a displaceable spindle, the mounting extending from the upper surface to the lower surface to permit a depth micrometer to be mounted to the upper surface with a free end of the displaceable spindle being exposed at the lower surface, a first lower reference surface and a second front reference surface, at least the second front reference surface being located forwardly of the at least one mounting.

US Patent:

20080184752, Aug 7, 2008

Filed:

Feb 1, 2007

Appl. No.:

11/506994

Inventors:

David Lee Warren - Baltimore MD, US

International Classification:

E05B 9/08

US Classification:

70450, 70451

Abstract:

The security keyboard cover can be make with 0.065 gage aluminum material And ⅛ thick steel material.The security keyboard cover is consist of five parts, that assemble or bend Together or come together for a particular purpose.The poin of this security keyboard cover is that it can be install in horizontal or vertical position or direction.After the security keyboard cover is make into one united.Assemble one 2 safety hasp in the center of the security keyboard cover Or united.Assemble one 5⅛=⅝=⅝ hind on to top open end Of security keyboard cover.After the security keyboard cover is make into one united.Assemble one 2 safety hasp in the center of the security keyboard cover Or united.Assemble one 5⅛=⅝=⅝ hind on to top open end Of security keyboard cover.

US Patent:

61497657, Nov 21, 2000

Filed:

Nov 12, 1996

Appl. No.:

8/747581

Inventors:

Momtaz Nosshi Mansour - Columbia MD
David Walter Warren - Sherman Oaks CA

Assignee:

Manufacturing & Technology Conversion International, Inc.

International Classification:

A62D 300

US Classification:

162 29

Abstract:

Resonant tubes of a pulse combustor are immersed in a bed of solid particles in a reaction zone to provide indirect heat from the pulsating combustion gases to the solid particles of the bed. The bed is maintained in an agitated state by a gas or vapor flowing through the bed. Reactant materials are introduced into the agitated bed and undergo reaction at enhanced rates resulting from heat transfer coefficients at least about twice as high as those of steady flow combustors and an intense acoustic pressure level propagated from the pulsating combustor into the reaction zone. The apparatus is useful, for example, to steam reform heavy hydrocarbons and to gasify carbonaceous material, including biomass and black liquor to produce combustible gas at relatively low temperatures, with steam being utilized as the bed fluidizing medium. Black liquor gasification, utilizing sodium carbonate as bed solids, results in liquor energy and chemical content recovery without smelt production.

US Patent:

62420348, Jun 5, 2001

Filed:

Jun 23, 2000

Appl. No.:

9/602333

Inventors:

Ajay Rajeshwar Bhaskar - Plano TX
Kevin Charles Cogan - Oak Point TX
Lewis Conrad Keller - McKinney TX
V. N. Mohan Rao - Plano TX
David Ray Warren - Plano TX

Assignee:

Recot, Inc. - Pleasanton CA

International Classification:

A21D 806
A21C 304

US Classification:

426560

Abstract:

In the process of producing corn-based pellets, preconditioner steam and water addition, as well as extruder water or screw configuration and RPM, can be manipulated to precisely control the cook level, gelatinization, and moisture level of the meal during processing, and level of defects despite minor variation in the characteristics of the corn flour. Specifically, the preconditioner added steam-to-water ratio can be manipulated to effect cook, hydration, and partial gelatinization of the meal. In the extruder, lower extruder rotational speeds increase the residence time and increases cook. With the increase in residence time the volume of bed pack in the extruder increases. This can be reversed by adding water directly into the extruder, thereby decreasing the viscosity of the meal in the extruder. Product bulk density is changed by increasing and decreasing cook of the meal.

US Patent:

55364888, Jul 16, 1996

Filed:

Feb 7, 1995

Appl. No.:

8/385082

Inventors:

Momtaz N. Mansour - Columbia MD
David W. Warren - Sherman Oaks CA

Assignee:

Manufacturing and Technology Conversion - Columbia MD

International Classification:

C01B 326

US Classification:

423652

Abstract:

Resonant tubes of a pulse combustor are immersed in a bed of solid particles in a reaction zone to provide indirect heat from the pulsating combustion gases to the solid particles of the bed. The bed is maintained in an agitated state by a gas or vapor flowing through the bed. Reactant materials are introduced into the agitated bed and undergo reaction at enhanced rates resulting from heat transfer coefficients at least about twice as high as those of steady flow combustors and an intense acoustic pressure level propagated from the pulsating combustor into the reaction zone. The apparatus is useful, for example, to steam reform heavy hydrocarbons and to gasify carbonaceous material, including biomass and black liquor to produce combustible gas at relatively low temperatures, with steam being utilized as the bed fluidizing medium. Black liquor gasification, utilizing sodium carbonate as bed solids, results in liquor energy and chemical content recovery without smelt production.