William Robinson
General Contractor in Salt Lake City, UT
License number
Utah 4552561-S300
Issued Date
Jun 20, 2000
Category
Contractor
Type
S300 - General Painting Qualifier
Address
Address
Salt Lake City, UT
Personal information
See more information about William Robinson at radaris.comName
Address
Phone
456 200 E, American Fork, UT 84003
456 100 E, American Fork, UT 84003
397 100 E, American Fork, UT 84003
5256 6600 S, West Jordan, UT 84084
2050 Logan Ave, Salt Lake City, UT 84108
Professional information
Filter Mask
US Patent:
3985132, Oct 12, 1976
Filed:
Dec 13, 1974
Appl. No.:
5/532340
Inventors:
Elvin L. Boyce - Salt Lake City UT
William Keith Robinson - Salt Lake City UT
William Keith Robinson - Salt Lake City UT
Assignee:
Tape-Licator, Inc. - Riverton UT
International Classification:
A62B 2302
US Classification:
1281462
Abstract:
An improved filter mask having a laterally pleated filter medium and a stiffening member parallel to and in the vicinity of the pleats. Lateral opening of the pleats causes the stiffening members to bow outwardly and support the filter medium away from the nose and mouth of the wearer thereby providing greater filtering efficiency and wearer comfort.