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. 12, 2014
Filed:
Sep. 18, 2013
Applicant:
Usg Interiors, Llc, Chicago, IL (US);
Inventors:
Martin W. Brown, Gurnee, IL (US);
William A. Frank, Lake Villa, IL (US);
Assignee:
USG Interiors, LLC, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 11/00 (2006.01); D21F 1/52 (2006.01); D21H 13/40 (2006.01);
U.S. Cl.
CPC ...
D21F 11/00 (2013.01); D21F 1/52 (2013.01); D21H 13/40 (2013.01);
Abstract
A system and a method for dewatering an acoustical tile basemat comprising a continuously traveling wire, a device for depositing a dilute water slurry of solids including fiber and binder on the wire, a vacuum box below the wire for separating water from the solids deposited on the wire to form a basemat, a vacuum source, and a valve for cyclically connecting the vacuum source to the vacuum box at a cyclic rate that limits vacuum exposure to a length of the basemat newly arriving at the vacuum box to less than four inches per cycle.