The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1981
Filed:
Oct. 21, 1980
Applicant:
Inventor:
James G Donovan, Norwell, MA (US);
Assignee:
Albany International Corp., Albany, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428196 ; 428198 ; 428204 ; 428246 ; 428252 ; 428304 ; 428306 ; 428322 ; 428421 ; 428913 ; 428920 ;
Abstract
A composite waterproof fabric for tent walls and the like which is suitable for use under severe service conditions, and which is opaque, of light weight and flame or fire resistant. The fabric comprises at least three plies, namely outer and inner woven, flame resistant plies and a middle ply of polytetrafluoroethylene which is hydrophobic, microporous and moisture vapor permeable. Tensile strength and tear resistance are imparted to the composite fabric largely by the inner ply, and abrasion protection is imparted by the outer ply. A light weight fabric of this construction is opaque, color adaptable and flexible at very low ambient temperatures.