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:
Jul. 20, 1993
Filed:
Dec. 10, 1991
Applicant:
Inventors:
Shinji Aoyagi, Saitama, JP;
Yoshiharu Aizawa, Saitama, JP;
Assignee:
Akebono Brake Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285158 ; 285220 ; 285910 ;
Abstract
The oil tightness between a union and a seat portion on the outer side surface of a caliper is maintained by a copper packing. A rubber packing is provided on the outside of the copper packing so as to prevent water drops from adhering to the copper packing. As a result, copper ions never dissolves into the water drops, so that the aluminum caliper is prevented from corroding.
Aoyagi, Shinji. (1993). Pressure oil lend-in portion of hydraulic apparatus (U.S. Patent No. 5228725). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5228725
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile