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:
Mar. 11, 1997
Filed:
Jul. 11, 1995
Kenji Tamaoki, Hiroshima, JP;
Hideaki Shimamoto, Hiroshima, JP;
Masaki Kawada, Hiroshima, JP;
Shigeru Morita, Kanagawa, JP;
Michio Fujino, Kanagawa, JP;
Youzi Hamazaki, Osaka, JP;
Yumex Corporation, Hiroshima, JP;
Nichias Corporation, Tokyo, JP;
Kokubu Indusrial Co., Ltd., Osaka, JP;
Abstract
A spiral gasket apparatus, capable of being held on an inclined flue gas outflow pipe without falling off therefrom, is constructed by winding a metal hoop member and a filler member, superposed on each other. A part of the hoop member from the beginning extremity of the hoop member on the inner side, which is wound as many as several turns to a welded fixed portion thereof, is raised inward by using the welded fixed portion as a fulcrum. An extremity portion thereof is folded back to form a superposition part. Since the raised part of the hoop member acts as a spring and is brought elastically into contact with an inclined flue gas outflow pipe, the gasket is held on the flue gas outflow pipe.