David B Welch

US Patent:

20040192129, Sep 30, 2004

Filed:

Sep 30, 2003

Appl. No.:

10/677653

Inventors:

Gordon McGregor - Landenberg PA, US
Thomas Bugg - Glen Mills PA, US
David Welch - Landenberg PA, US

International Classification:

D03D009/00

US Classification:

442/006000, 442/049000

Abstract:

An insect screen made from fibers in a warp and fill construction defining openings having a warp dimension and a fill dimension, both of said warp and fill dimensions being equal to or less than about 0.04 inches and equal to or larger than about 0.01 inches, said fibers having a diameter of equal to or greater than about 0.002 inches and less than about 0.007 inches. The present invention is an improved insect screen designed to serve the primary purpose of keeping out very small insects and pests while maximizing visual clarity, light transmission, and airflow.

US Patent:

20040203303, Oct 14, 2004

Filed:

Feb 13, 2004

Appl. No.:

10/779536

Inventors:

Gordon McGregor - Landenberg PA, US
Thomas Bugg - Glen Mills PA, US
David Welch - Landenberg PA, US

International Classification:

D04B001/00

US Classification:

442/001000

Abstract:

The present invention is an insect screen with improved durability designed to serve the primary purpose of keeping out very small insects and pests while maximizing visual clarity, light transmission, and airflow. The insect screen is free from macroscopic permanent deformation when subjected to a blunt instrument deformation test of at least 5 lbs. and has a total light transmission of at least 65%. The inventive insect screen comprises fibers in a warp and fill construction which define openings having a warp dimension and a fill dimension, both of said warp and fill dimensions being equal to or less than about 0.06 inches and equal to or larger than about 0.01 inches, the fibers having a diameter less than about 0.007 inches.

US Patent:

20050187948, Aug 25, 2005

Filed:

Mar 9, 2004

Appl. No.:

10/796865

Inventors:

Arnold Monitzer - Wayne PA, US
Frank Heer - King of Prussia PA, US
David Welch - Wilmington DE, US

International Classification:

G06F007/00

US Classification:

707100000

Abstract:

A self-service system and user interface supports a patient in initiating, monitoring, and managing administration of admission, discharge and scheduling activity and in accessing medical information. A system supports patient access to medical information of the patient. The system includes an interface processor for receiving patient identification information and a database linking a patient identifier derived using the patient identification information, with prescription information identifying a medication for the patient. A data processor accesses the database to retrieve the prescription information. A display processor initiates generation of data representing an image including the prescription information, in response to the received patient identification information and a request by the patient to access the prescription.

US Patent:

20060160445, Jul 20, 2006

Filed:

Mar 6, 2006

Appl. No.:

11/369447

Inventors:

Gordon McGregor - Landenberg PA, US
Thomas Bugg - Glen Mills PA, US
David Welch - Landenberg PA, US

International Classification:

D04G 1/00
D04H 1/00
D03D 15/00

US Classification:

442001000, 442002000, 442006000, 442181000

Abstract:

An insect screen made from fibers in a warp and fill construction defining openings having a warp dimension and a fill dimension, both of said warp and fill dimensions being equal to or less than about 0.04 inches and equal to or larger than about 0.01 inches, said fibers having a diameter of equal to or greater than about 0.002 inches and less than about 0.007 inches. The present invention is an improved insect screen designed to serve the primary purpose of keeping out very small insects and pests while maximizing visual clarity, light transmission, and airflow.

US Patent:

20060169426, Aug 3, 2006

Filed:

Feb 16, 2006

Appl. No.:

11/355879

Inventors:

Gordon McGregor - Landenberg PA, US
Thomas Bugg - Glen Mills PA, US
David Welch - Landenberg PA, US

International Classification:

E06B 9/24

US Classification:

160371000

Abstract:

The present invention is an insect screen with improved durability designed to serve the primary purpose of keeping out very small insects and pests while maximizing visual clarity, light transmission, and airflow. The insect screen is free from macroscopic permanent deformation when subjected to a blunt instrument deformation test of at least 5 lbs. and has a total light transmission of at least 65%. The inventive insect screen comprises fibers in a warp and fill construction which define openings having a warp dimension and a fill dimension, both of said warp and fill dimensions being equal to or less than about 0.06 inches and equal to or larger than about 0.01 inches, the fibers having a diameter less than about 0.007 inches.

US Patent:

20080289780, Nov 27, 2008

Filed:

Aug 7, 2008

Appl. No.:

12/187615

Inventors:

Gordon L. McGregor - Landenberg PA, US
Thomas R. Bugg - Glen Mills PA, US
David J. Welch - Landenberg PA, US

International Classification:

E06B 9/52
E06B 9/24

US Classification:

160371, 160405

Abstract:

The present invention is an insect screen with improved durability designed to serve the primary purpose of keeping out very small insects and pests while maximizing visual clarity, light transmission, and airflow. The insect screen is free from macroscopic permanent deformation when subjected to a blunt instrument deformation test of at least 5 lbs. and has a total light transmission of at least 65%. The inventive insect screen comprises fibers in a warp and fill construction which define openings having a warp dimension and a fill dimension, both of said warp and fill dimensions being equal to or less than about 0.06 inches and equal to or larger than about 0.01 inches, the fibers having a diameter less than about 0.007 inches.

US Patent:

57175160, Feb 10, 1998

Filed:

Apr 4, 1997

Appl. No.:

8/825835

Inventors:

Marvin B. Klein - Pacific Palisades CA
David M. Pepper - Malibu CA
Ronald R. Stephens - Westlake Village CA
Thomas R. O'Meara - Malibu CA
David Welch - Menlo Park CA
Robert J. Lang - Pleasanton CA
Jack L. Feinberg - Manhattan Beach CA
Stuart MacCormack - Venice CA

Assignee:

Hughes Electronics - Los Angeles CA
SDL, Inc. - San Jose CA

International Classification:

H01S 300
G02B 626

US Classification:

359334

Abstract:

An optical amplification system directs a diffraction-limited signal beam through a series of approximately 90. degree. crossings with a number of non-diffraction-limited pump beams in a photorefractive medium. All of the beams are s-polarized, resulting in an energy transfer from the pumps to the signal beam while leaving the signal beam diffraction-limited. The photorefractive medium is preferably a series of BaTiO. sub. 3 :Rh crystals that receive the pump and signal beams through orthogonal faces, with their C-axes at approximately 45. degree. to both beams. A binary tree optical distribution network is used to minimize waveguide splits in forming a large number of pump beams. The outputs of several amplification modules are combined into a single output beam using adaptive optics, with the outputs from the different modules phase matched to each other by diverting two minor portions of the combined beam, partially overlapping the diverted beams and adjusting the amplification module phases to cancel phase differentials between the overlapped portions. Similarly, sets of combined and phase-matched beams can be combined with each other (again using adaptive optics) to generate still higher powers using a super module approach.