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 7111988 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 26, 2006

Filed:

Dec. 09, 2003
Applicant:

Wen-kuan Chen, Kaohsiung, TW;

Inventor:

Wen-Kuan Chen, Kaohsiung, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 32/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A dustproof structure for a sleeve bearing includes an axial tube, a sleeve bearing and a dustproof cushion. The axial tube accommodates the sleeve bearing which bears an axial hole through which a shaft of a motor rotor is freely extended. The dustproof cushion is attached to an end surface of the sleeve bearing to prevent from entering foreign dust. At least one oil-returning groove is formed between the sleeve bearing and the dustproof cushion to ensure cycling lubricant so that sufficient lubricity between the sleeve bearing and the shaft is ensured.


Find Patent Forward Citations

Quick Actions:

Chen, Wen-Kuan. (2006). Dustproof structure for a sleeve bearing (U.S. Patent No. 7111988). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7111988

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

Loading…