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:
Feb. 08, 2011
Filed:
Feb. 21, 2007
Applicants:
Douglas Bruce, Zionsville, IN (US);
Greg Sharrun, Greenville, SC (US);
Richard Peng, Fishers, IN (US);
Inventors:
Douglas Bruce, Zionsville, IN (US);
Greg Sharrun, Greenville, SC (US);
Richard Peng, Fishers, IN (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B 5/00 (2006.01); B32B 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-layer roofing membrane is provided including a top sheet including a co-extruded cap and inner layer and a bottom sheet. The use of a co-extrusion die allows for multi-layer sheets that reduce the need for expensive fillers in all but a cap layer of the membrane. A scrim reinforcement layer is optionally embedded in the membrane. When installed on a roof substrate, the membrane can be sealed by heat welding the seams of the membrane sheets or by other means.