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:
May. 27, 2014
Filed:
Jul. 05, 2013
Applicant:
Usg Interiors, Llc, Chicago, IL (US);
Inventors:
William A. Frank, Lake Villa, IL (US);
Terry Rosenstiel, Vernon Hills, IL (US);
Assignee:
USG Interiors, LLC, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 13/40 (2006.01); E04B 1/82 (2006.01); D21J 1/20 (2006.01); E04B 1/84 (2006.01); E04B 2/02 (2006.01);
U.S. Cl.
CPC ...
D21H 13/40 (2013.01); D21J 1/20 (2013.01); E04B 1/8409 (2013.01); E04B 2/02 (2013.01);
Abstract
A wet laid basemat for an acoustical ceiling tile comprising on a dry weight basis, 50% or more mineral wool fiber, including shot, less than 9% binder, and between 5 and 20% chopped strand glass fiber, and, optionally, minor amounts of other constituents, whereby the chopped strand glass fibers serve to promote and/or maintain voids in the mat such that the dry basemat has a density of between about 7½ to about 10½ lbs. per cubic foot and an NRC substantially greater than 0.55.