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:
Apr. 26, 1983
Filed:
Jul. 31, 1981
Applicant:
Inventors:
Yasuo Gotomyo, Hiroshima, JP;
Yukihiro Nakagawa, Aichi, JP;
Assignees:
Toyo Kogyo Co., Ltd., Hiroshima, JP;
Nakagawa Sangyo Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428218 ; 65-44 ; 65-9 ; 428285 ; 428288 ; 428296 ; 428298 ; 428299 ; 428300 ; 428369 ; 428371 ; 428392 ; 428398 ;
Abstract
A glass-wool mat is produced from a sheet of glass fibers by heating the surfaces of the sheet to a temperature close to the melting point of glass so that the glass fibers in the surface area have rounded ends and are shrunk so that they are firmly entangled together. Thus, non-irritating surfaces are provided on the mat.