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:
Jan. 02, 1979
Filed:
May. 24, 1977
Applicant:
Inventors:
Assignee:
Toyo Kogyo Co., Ltd., Aki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
277 962 ; 7512 / ; 7512 / ; 418179 ; 428682 ;
Abstract
Oil seal ring comprising a base body and a lip formed thereon. The base body is made of a relatively flexible iron based material such as a cast iron. The lip is made of a mixture of iron-based alloy and one or more carbides by melting and thereafter solidifying the mixture on the body. Composite carbides are produced in the alloy and added carbides are distributed in the metal and the composite carbides in the alloy.
Sunami, Teruo. (1979). Oil seal ring for rotary piston engines (U.S. Patent No. 4132419). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4132419
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile