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:
Dec. 16, 1986
Filed:
Sep. 04, 1984
Applicant:
Inventors:
Tsutomu Yamamoto, Yokohama, JP;
Masaaki Ashizawa, Yokohama, JP;
Kazuo Nishimoto, Yokohama, JP;
Yuji Sekiguchi, Yokohama, JP;
Assignee:
Nichias Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; B32B / ;
U.S. Cl.
CPC ...
277204 ; 2772 / ; 277D / ; 428281 ;
Abstract
A gasket including a sheet having a composition of 40 to 80% by weight of thin flakes of expanded vermiculite, 1 to 30% by weight of fibers, 5 to 40% by weight of fine filling grains, and appropriate amounts of a binding agent and a vulcanizing agent. The sheet also has a metal plate laminated thereto. A vortex gasket may be formed by spirally winding a metal hoop together with a filling material, which is composed primarily of expanded vermiculite.