David Lee Brewer

US Patent:

56203691, Apr 15, 1997

Filed:

Jun 6, 1995

Appl. No.:

8/465745

Inventors:

Peter J. Spransy - Salt Lake City UT
Ronald W. Daw - Murray UT
David L. Brewer - Sandy UT

Assignee:

Daw Technologies, Inc. - Salt Lake City UT

International Classification:

F24F 13068

US Classification:

454187

Abstract:

A ceiling structure within a cleanroom, including an array of cleanroom filters supported in openings of a grid support structure, wherein the ceiling structure includes a gel track coupled either at the top of the grid support channel. The cleanroom filters including a peripheral flange are suspended in the ceiling structure by having a ceiling edge of the peripheral flange either immersed in the gel track at the top of the grid support structure or using a cleanroom filter having gel or the lower knife edge seal thereof engaging a portion of the top of the grid support channel. Filtered air passes through the channel structure into the vortex region to reduce the vortex region or dead air space below the channel as well as prevent the accumulation of particulate material in the interior of the channel. A damper may be provided with the grid support structure to control the flow of filtered air into the interior of the grid support structure.

US Patent:

20160364666, Dec 15, 2016

Filed:

Aug 28, 2015

Appl. No.:

14/839449

Inventors:

- Schenectady NY, US
Ilkin Onur Dulgeroglu - Niskayuna NY, US
David Joseph Brewer - Wilmington NC, US
Gregg Allen Schneider - Wilmington NC, US
Eric Russell Mino - Wilmington NC, US
Sean Fuller - Wilmington NC, US
Hao Dinh - San Ramon CA, US
Scott Hamrick - San Ramon CA, US

International Classification:

G06Q 10/06
G06Q 50/06

Abstract:

A method of dynamically adjusting an industrial system outage plan is disclosed. Data items pertaining to changes to past plans associated with past outages of a plurality of industrial systems are received along with optional inputs from physics based model(s) of the system, such as a fuel model. The data items include measurements of impacts of changes to the past plans. Work rules pertaining to a work force are received. The work force is responsible for implementing an additional plan corresponding to an additional outage of an additional industrial system. The work rules include fatigue thresholds for workers in the work force. Based on a determination that a probability that one or more fatigue thresholds will be exceeded, a recommendation for a change to the additional plan is generated. The recommendation is based on the measurements of the impacts of the changes to the past plans.