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:
May. 07, 1996
Filed:
Sep. 08, 1994
Applicant:
Inventors:
Tetsumi Watanabe, Okazaki, JP;
Yutaka Momose, Anjo, JP;
Noboru Ohtani, Handa, JP;
Hiroyuki Katsuda, Okazaki, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ; F16J / ; F16J / ;
U.S. Cl.
CPC ...
277141 ; 277217 ; 277218 ; 277220 ; 277223 ; 277198 ; 277234 ; 277103 ;
Abstract
A sealing device for being mounted on a piston which is movably fitted within a cylinder, includes a sealing ring member having opposite end portions which are interlocked with each other along the circumferential direction of the sealing ring member, and an expanding device for expanding the radius of sealing ring member in the radial direction thereof.