Steven Allen Duncan

US Patent:

6721614, Apr 13, 2004

Filed:

May 21, 2001

Appl. No.:

09/862103

Inventors:

Steven Allen Duncan - Pflugerville TX
Laurence J. McKee - Summerville SC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1900

US Classification:

700 97, 700 95, 700 98, 700182, 345964, 706919

Abstract:

The present invention relates to a system for facilitating design and production engineering processes in a multi-disciplinary computer aided design environment. The system includes first enterprise including a workstation running a CAD application relating to a first engineering discipline; a second workstation running a CAD application relating to a second engineering discipline; a first storage device coupled to the first workstation; a second storage device coupled to the second workstation; a server executing a multi-discipline universal CAD library application; and a network connection for allowing the workstations and the server to communicate. The system also comprises a communications link to a second enterprise for allowing the second enterprise to communicate with the first enterprise. The system also comprises a commercial database accessible to both enterprises via the communications link. The multi-discipline universal CAD library tool utilizes standard component parts definitions to allow the enterprises to share information relating to CAD processes and data over the web.

US Patent:

56153872, Mar 25, 1997

Filed:

Jan 22, 1996

Appl. No.:

8/589795

Inventors:

Charles H. Crockett - Austin TX
Steven A. Duncan - Austin TX
Stephen A. Dunn - Georgetown TX
David W. Malone - Austin TX
Michael G. McMaster - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H05K 300

US Classification:

395800

Abstract:

A method of reworking a printed circuit board having a surface including areas needing to be reworked including the steps of covering the surface with a dielectric leaving uncovered at least the areas of the surface to be reworked, and selectively providing corrective circuitry on the dielectric interconnected to the uncovered areas of the surface needing to be reworked. In addition, a printed circuit board having a surface including reworked areas including a dielectric covering the surface leaving uncovered at least the reworked areas, and corrective circuitry on the dielectric interconnected to the uncovered reworked areas.

US Patent:

52142507, May 25, 1993

Filed:

Sep 19, 1991

Appl. No.:

7/762201

Inventors:

Burtran J. Cayson - Austin TX
John A. Covert - Binghamton NY
Steven A. Duncan - Austin TX
John M. Lauffer - Waverly NY
Issa S. Mahmoud - Apalachin NY
Richard A. Schumacher - Endicott NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H05G 100

US Classification:

174250

Abstract:

Disclosed is a method of reworking a circuit panel, and a reworked circuit panel structure. The method includes providing a conformal, polymeric, dielectric coating or coatings on the surface of the panel, providing conductive circuitization atop the conformal, polymeric, dielectric coating or coatings on the surface of the panel, and providing a top conformal, polymeric, dielectric coating atop the conductive circuitization layer. Also disclosed is a rerouted circuit panel having at least two surface features that are connected by a rerouted current lead. The current lead is formed of a dielectric encapsulated conductor electrically joining the two surface features. The dielectric encapsulated conductor structure includes a conformal, polymeric dielectric bottom layer adherent to a surface of the circuit board, with a provided conductor on the conformal, polymeric dielectric layer, and a conformal, polymeric dielectric layer provided atop the provided conductor. The polymeric dielectric bottom layer may include one or more layers atop one another.

US Patent:

56002599, Feb 4, 1997

Filed:

Feb 9, 1996

Appl. No.:

8/599033

Inventors:

Bernd Bartyzel - Austin TX
Steven A. Duncan - Austin TX
Daniel A. Fields - Austin TX
Keith A. Vanderlee - Austin TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G01R 3102

US Classification:

324761

Abstract:

A multi-pin probe including a printed circuit board with multiple electrically conductive vias, multiple probes, each probe inserted into one of the electrically conductive vias, and a housing having multiple cavities inserted over the multiple probes, each cavity having a first and a second aperture around one of the probes, the first aperture being smaller than the second aperture. In addition, a method of manufacturing a multi-pin probe including the steps of manufacturing a printed circuit board with multiple electrically conductive vias, inserting multiple probes into the electrically conductive vias, and inserting a housing having multiple cavities over the multiple probes, each cavity having a first and a second aperture around one of the probes, the first aperture being smaller than the second aperture.

US Patent:

50885081, Feb 18, 1992

Filed:

Feb 15, 1991

Appl. No.:

7/656768

Inventors:

Steven A. Duncan - Austin TX

International Classification:

A24F 1900

US Classification:

131330

Abstract:

An apparatus for eliminating sidestream smoke from a cigarette or other smoking article includes a smoke collecting chamber adapted to collect sidestream smoke from the lit end of the smoking article along with air for combustion of the sidestream smoke and to direct the mixture of sidestream smoke and air to a combustion area associated with the smoke collecting chamber. An ignition device is included in the apparatus for igniting at least a portion of the sidestream smoke received in the combustion area by heating the smoke in the combustion area to an ignition temperature. The preferred ignition device includes a heat source for constantly producing a flame in the combustion area. The apparatus may also include a smoke particle capturing arrangement in a capture chamber connected to the smoke collecting chamber. The smoke particle capturing arrangement is adapted to remove smoke particles from the sidestream smoke or to capture smoke particles in the combustion area on a suitable ignition surface so that the igniting device may ignite the captured smoke particles.