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:
Jun. 11, 1985
Filed:
Jul. 05, 1984
John J Hiers, Elkin, NC (US);
Lydall, Inc., Manchester, CT (US);
Abstract
There is provided an integral textile composite fabric of non-woven, needled textile fibers which comprises at least one organic textile fiber layer of laid and needled textile organic fibers, at least one glass fiber layer of laid and needled glass fibers, and a plurality of needled stitches composed essentially of the organic fibers from the organic fiber layer needled in and disposed substantially through the glass fiber layer. The layers are bound together at their inner surfaces, are substantially non-detachable from each other and form an integral textile composite fabric having substantially uniform and high physical properties. There are at least 700 stitches per square inch passing through the glass fiber layer, and the organic fiber layer is essentially free, at least on the outer surface thereof, of glass fibers displaced from the glass fiber layer.