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:
Oct. 19, 1999
Filed:
May. 29, 1997
Tadashi Nagai, Kanagawa, JP;
Eizo Suyama, Tokyo, JP;
Syoji Watanabe, Yokohama, JP;
Seiji Katou, Yokohama, JP;
Toshiaki Kimura, Kanagawa, JP;
Kazuo Yajima, Tokyo, JP;
Hiroyuki Aihara, Kanagawa, JP;
Seiichi Nitta, Yokohama, JP;
Yoshiaki Koizumi, Kanagawa, JP;
Hidetaka Higashimura, Kanagawa, JP;
Ryo Mashimo, Yokohama, JP;
Calsonic Corporation, Tokyo, JP;
Abstract
A flexible pipe unit for an exhaust pipe line of an internal combustion engine comprises a metal bellows which has a front open end adapted to be connected to a first exhaust pipe and a rear open end adapted to be connected to a second exhaust pipe. A cylindrical outer case of metal is coaxially disposed about the metal bellows in a manner to define therebetween a cylindrical space. A first structure is arranged between a front end of the outer case and a front end of the bellows to achieve a mechanical connection therebetween. A second structure is arranged between a rear end of the outer case and a rear end of the bellows to achieve a mechanical connection therebetween. At least one of the first and second structures comprises a spring member by which the bellows and the outer case are resiliently connected.