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.:

US 7093861 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 22, 2006

Filed:

Feb. 21, 2002
Applicants:

Hironobu Sasada, Kyoto, JP;

Takashi Yanagihara, Kyoto, JP;

Suekichi Hangeishi, Toyota, JP;

Inventors:

Hironobu Sasada, Kyoto, JP;

Takashi Yanagihara, Kyoto, JP;

Suekichi Hangeishi, Toyota, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 27/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An automobile exhaust-pipe joint structure and a coil spring for use therein. The exhaust pipe connection structure includes a first exhaust pipe having a first flange section, a second exhaust pipe having a second flange section, a ball joint section for connecting the first and second exhaust pipes flexibly, and coupling mechanisms provided at a plurality of positions of the first and second flange sections. One exemplary coupling mechanism includes a bolt member penetrating the first flange section and being secured, at one end part thereof, to the second flange section, and a coil spring of deformed cross-section interposed between the other end part of the bolt member and the first flange section, wherein the cross-section of a wire is reduced in diameter, in the compressing direction with a dimensional ratio between the short diameter and long diameter thereof being in the range of 1.1–2.6.


Find Patent Forward Citations

Sasada, Hironobu. (2006). Exhaust pipe joint structure and coil spring used in the same (U.S. Patent No. 7093861). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7093861

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