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:
Aug. 24, 1982
Filed:
Dec. 05, 1980
Applicant:
Inventors:
Junzo Hasegawa, Obu, JP;
Masatoshi Yamada, Nagoya, JP;
Kaoru Nakamura, Anjo, JP;
Eiichi Yasuda, Nagoya, JP;
Assignees:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagoya, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277205 ;
Abstract
In a sealing or piston cup for maintaining lubricating oil on a sealing surface, the sealing surface thereof is formed with a circumferentially extending angular recess or groove which functions to retain lubricating oil. The sealing cup with the recess can ensure a smooth and stable operation of the device.
Hasegawa, Junzo. (1982). Sealing cup for hydraulic piston-cylinder device (U.S. Patent No. 4345771). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4345771
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile