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. 11, 1978
Filed:
Jul. 26, 1976
Oiles Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention relates to self-lubricating bearings or other antifriction elements formed of a lubricant-containing polyacetal. It can be manufactured in various shapes by molding a powdery mixture of the polyacetal having a bulk factor of 2-8 with 2-12 wt % of the lubricant which is in a liquid state at a normal room temperature or at the melting point of the polyacetal by a screw type injection molding machine having controlled temperatures in the feed, compression, metering and nozzle sections of the heating cylinders. During the process, the lubricant is uniformly dispersed in said resin material as fine particles independent from each other and this accounts for the extraordinarily high retention of lubricant film which forms on the bearing surface of the molded articles in use.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile