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. 21, 1984
Filed:
Aug. 16, 1982
Applicant:
Inventors:
John S Forry, Manor Township, Lancaster County, PA (US);
John R Garrick, Lancaster, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425 831 ; 425115 ; 425130 ; 425371 ;
Abstract
A mixture of binder and fibrous material is introduced into the upper regions of a mat-forming zone. The mixture is intersected by a horizontally or upwardly directed air stream and entrained therein, then layered onto at least one foraminous wire by exhausting the entraining air through said foraminous wire or wires. By reducing turbulence and by controlling the manner in which the particulate matter is deposited upon the foraminous wires, uniform non-woven webs can be obtained which may be used in a variety of ways to form versatile building products.