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:
Aug. 08, 1995
Filed:
Apr. 21, 1994
D Mark Woiceshyn, St. Catharines, CA;
Bay Mills Limited, Ontario, CA;
Abstract
A reinforced bituminous roofing membrane includes a first layer, a second layer, a third layer and bituminous material. The first layer consists essentially of a lightweight, open grid of adhesively bound non-woven fabric in which yarns in the cross-machine direction are held between pairs of yarns in the machine direction, each such pairs of yarns having one yarn that is essentially above the other and each such pair of yarns being coated and bound next to the other by adhesive which accumulates between the yarns of each pair. The second layer consists essentially of a high strength reinforcing fabric, while the third layer consists essentially of a porous fiberglass mat. The bituminous material saturates and contains the first, second and third layers, such that the three layers are completely embedded within the bituminous material and the bituminous material on one side of the membrane bonds through the layers to the bituminous material on the other side of the membrane.