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:
Sep. 23, 1986
Filed:
Oct. 17, 1983
Applicant:
Inventors:
Norman Sherman, Ramsey, MN (US);
Timara Underbakke, Roseville, MN (US);
Assignee:
USG Acoustical Products Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C08J / ;
U.S. Cl.
CPC ...
521 68 ; 106122 ; 264 26 ; 264 42 ; 264 453 ; 264 50 ; 521 841 ; 521134 ; 521138 ;
Abstract
A wet process for the manufacture of shaped fibrous products such as acoustical ceiling board is disclosed. The ceiling board binder is foamed prior to being combined with the solids. Substantial reductions in water requirements are obtained accompanied by substantial energy savings in the drying operation.