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 8328199 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 11, 2012

Filed:

Jun. 14, 2010
Applicant:

Kotaro Oshita, Tokyo, JP;

Inventor:

Kotaro Oshita, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 15/43 (2006.01);
U.S. Cl.
CPC ...
Abstract

A seal device has a magnetic force generator for generating a magnetic force in a vicinity of a shaft. A first magnetism transmission member for transmitting the magnetic force generator is disposed adjacent to one side of the magnetic force generator. A second magnetism transmission member for transmitting the magnetic force generated by the magnetic force generator is disposed adjacent to another side of the magnetic force generator. A slide bush is disposed and secured between an inner flange of the second magnetism transmission member and the shaft. A seal member for sliding relative to an outer peripheral surface of the shaft, is accommodated in a sealing. And, a magnetic fluid is held between the shaft and the magnetism transmission member by the magnetic force generated by the magnetic force generator.


Find Patent Forward Citations

Oshita, Kotaro. (2012). Seal device (U.S. Patent No. 8328199). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8328199

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

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