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:
Apr. 06, 1993
Filed:
Jul. 03, 1991
Yoshiaki Wada, Kashiwazaki, JP;
Tunesaku Itaba, Kashiwazaki, JP;
Koichiro Kasahara, Kashiwazaki, JP;
Yutaka Momose, Anjyo, JP;
Tetsumi Watanabe, Okazaki, JP;
Hiroyuki Katsuda, Okazaki, JP;
Kabushiki Kaisha Riken, Tokyo, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A Stirling engine seal assembly includes a seal ring body and an expander. The seal ring body consists of a matrix made of polytetrafluoroethylene compounded and filled with carbon fibers and at least one powder selected from the group consisting of carbon powder, boron nitride powder and molybdenum disulfide powder. The plate expander is in abutting contact with the inner peripheral surface of the seal ring body for urging the seal ring body in the direction of its outer circumference.