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:
Nov. 20, 1979
Filed:
Apr. 25, 1978
Takashi Fujii, Toyota, JP;
Jiro Kizaki, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Abstract
A seal member for a fluid-tight connection of a plastic reservoir and a metal cylinder having different thermal expansion coefficients, including one end portion in sealing contact with each connecting portion of the reservoir and the cylinder, a middle portion formed integrally with and contiguous to the one end portion, the middle portion being normally separated from either one or both connecting portions of the reservoir and the cylinder and another end portion formed integrally with and contiguous to the middle portion and in sealing contact with both connecting portions of the reservoir and cylinder, wherein the middle portion of the seal member and the corresponding connecting portions of the reservoir and cylinder will not be influenced by thermal stress even when the surrounding temperature thereof may increase.