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. 10, 1996
Filed:
Sep. 26, 1994
Applicant:
Inventors:
Assignees:
Mitsubishi Kasei Corporation, Tokyo, JP;
Nissan Motor Co., Ltd., Kanagawa Pref., JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
181294 ; 181286 ; 428219 ; 428224 ; 428284 ; 428287 ;
Abstract
A sound absorbing member having excellent sound insulating and absorbing performances comprises a fiber assembly consisting essentially of short fibers and having a thickness of not less than 5 mm, in which new and/or recycled polyester fibers are used as the short fiber and not less than 30% by weight of the polyester fiber used have a fiber-size of not more than 4 denier.