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:
Jul. 21, 1998
Filed:
Nov. 21, 1996
Applicant:
Inventors:
Patrick M Noonan, Boggstown, IN (US);
Robert D Hauk, Shelbyville, IN (US);
Frederick M Beyer, St. Paul, IN (US);
Assignee:
Knauf Fiber Glass GmbH, Shelbyville, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ; B32B / ;
U.S. Cl.
CPC ...
428 345 ; 428 359 ; 428 361 ; 4284111 ; 428441 ; 428219 ; 138149 ; 442219 ; 442273 ; 442212 ; 442415 ;
Abstract
A rigid fiber glass duct board for air ducts in which the air contacting surface is a mat facing formed from a saturated polyester/glass mat which presents a smooth surface to flowing air and hence avoids surface degradation at very high air velocities. A method of forming such a board is also disclosed.