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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.:

US 5615479 B1

PDFFull Text
Date of Patent:
Apr. 01, 1997

Filed:

Jun. 01, 1995

Method of manufacturing a spherical annular seal

Applicant:
Inventors:

Takashi Maeda, Fujisawa, JP;

Takeshi Furukido, Yamato, JP;

Kousaku Hoshino, Fujisawa, JP;

Satoru Udo, Nakatsu, JP;

Masayoshi Izumi, Chikujo, JP;

Assignee:

Oiles Corporation, , JP;

Attorney:

Nixon & Vanderhye

Primary Examiner:

Irene Cuda

Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
298883 ; 29505 ; 277100 ;
Abstract

A spherical annular seal having a through hole in a center thereof and a partially convex spherical surface portion on an outer surface thereof, wherein an inner peripheral surface of the spherical annular seal defining the through hole is reinforced by a reinforcing member formed of a metal mesh, and a uniform lubricating sliding layer of a lubricating composition containing 70 to 90 wt. % of boron nitride and 10 to 30 wt. % of alumina is formed on a surface of the partially convex spherical surface portion.

Find Patent Forward Citations

Maeda, Takashi. (1997). Method of manufacturing a spherical annular seal (U.S. Patent No. 5615479). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5615479

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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