FREDERICK D ROTAR
Vehicle Board in West Chester, PA
License number
Pennsylvania MV110712L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
West Chester, PA 19380
Professional information
See more information about FREDERICK D ROTAR at trustoria.com
Metal Impregnated Dryer Fabric
Metal Impregnated Dryer Fabric
US Patent:
4251928, Feb 24, 1981
Filed:
Feb 5, 1979
Appl. No.:
6/009760
Inventors:
Frederick D. Rotar - West Chester PA
Clement B. Edgar - Devon PA
Clement B. Edgar - Devon PA
Assignee:
Asten Group Inc. - Devon PA
International Classification:
B43L 706
US Classification:
34116
Abstract:
A dryer fabric impregnated with metallic particles so as to increase the thermal conductivity of the fabric and also reduce its emissivity. The dryer fabric is a woven fabric having a plurality of interstices between its warp and weft yarns. By coating the fabric with a synthetic resin mixture containing metallic particles, such as aluminum particles, the interstices are substantially filled with metallic particles thereby improving the thermal properties of the fabric.
Coating Of Papermaking Fabrics
Coating Of Papermaking Fabrics
US Patent:
4172910, Oct 30, 1979
Filed:
Mar 28, 1978
Appl. No.:
5/891046
Inventors:
Frederick D. Rotar - West Chester PA
Assignee:
Asten Group, Inc. - Devon PA
International Classification:
B05D 500
US Classification:
427243
Abstract:
A process for treating papermaking fabrics, in particular dryer fabrics, includes coating the back surface of the fabric with a thickened resin mixture. To reduce the air permeability of a woven dryer fabric, the fabric is impregnated with a thickened resin mixture to thereby close up a portion of the spaces between the woven yarns. By applying a thickened resin mixture having a viscosity of between 1,000 and 5,000 centipoise to the back surface of the dryer fabric, the fabric is impregnated in a single pass with a sufficient quantity of the mixture to thereby reduce the air permeability to the desirable level.