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. 01, 1979
Filed:
Apr. 21, 1978
Applicant:
Inventors:
John R Cook, deceased, late of Riegelsville, PA (US);
by Warren Cook, executor, Shaftsbury, VT (US);
BY First Vermont Bank and Trust Co, executor, Bennington, VT (US);
Assignee:
Chemical Fabrics Corporation, North Bennington, VT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ; E04B / ; B32B / ;
U.S. Cl.
CPC ...
428137 ; 156 71 ; 181291 ; 428246 ; 428251 ; 428284 ; 428285 ; 428286 ; 428332 ; 428340 ; 428422 ;
Abstract
An acoustic absorber and a method for absorbing sound utilize a substrate having a plurality of openings therethrough. An organic polymer coating covers the substrate and partially fills the openings in the substrate to form an acoustic absorber having a porosity not greater than 60 CFM/ft.sup.2.