Mark Earl Ewing
Engineers in Perry, UT
License number
Utah 181665-2202
Issued Date
Nov 30, 1998
Expiration Date
Mar 31, 2017
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Perry, UT
Professional information
Pyrolytic Graphite Gauge For Measuring Heat Flux
US Patent:
6499289, Dec 31, 2002
Filed:
Mar 29, 2001
Appl. No.:
09/820403
Inventors:
Robert C. Bunker - Ogden UT
Mark E. Ewing - Perry UT
John L. Shipley - Tremonton UT
Mark E. Ewing - Perry UT
John L. Shipley - Tremonton UT
Assignee:
Alliant Technologies Inc. - Edina MN
International Classification:
F02K 908
US Classification:
60253, 60257, 60803, 374144, 374148
Abstract:
A gauge for measuring heat flux, especially heat flux encountered in a high temperature environment, is provided. The gauge includes at least one thermocouple and an anisotropic pyrolytic graphite body that covers at least part of, and optionally encases the thermocouple. Heat flux is incident on the anisotropic pyrolytic graphite body by arranging the gauge so that the gauge surface on which convective and radiative fluxes are incident is perpendicular to the basal planes of the pyrolytic graphite. The conductivity of the pyrolytic graphite permits energy, transferred into the pyrolytic graphite body in the form of heat flux on the incident (or facing) surface, to be quickly distributed through the entire pyrolytic graphite body, resulting in small substantially instantaneous temperature gradients. Temperature changes to the body can thereby be measured by the thermocouple, and reduced to quantify the heat flux incident to the body.
Roofing Material With Directionally Dependent Properties
US Patent:
8007898, Aug 30, 2011
Filed:
Oct 6, 2010
Appl. No.:
12/898713
Inventors:
Kirk Matthew Bailey - Brigham City UT, US
Mark Earl Ewing - Perry UT, US
Mark Earl Ewing - Perry UT, US
Assignee:
Cool Angle LLC - Brigham City UT
International Classification:
D06N 7/04, B32B 5/00, B05D 1/12, B05D 7/00
US Classification:
428143, 428 98, 428141, 428144, 427186, 427214
Abstract:
Roofing material with an irregular surface and tailored radiation properties and tailored aesthetic properties in separate directions, simultaneously. This provides enhanced thermal performance in the sun direction and aesthetically pleasing visual appearance from viewing directions.