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:
Oct. 30, 2018
Filed:
May. 27, 2016
Shimano Inc., Sakai, Osaka, JP;
Hirokazu Hirayama, Osaka, JP;
SHIMANO INC., Sakai, Osaka, JP;
Abstract
A magnetic seal device that includes a magnetic sleeve having a cylindrical body that and fits on an outer peripheral surface of a rotatable shaft, a ring shaped magnet being arranged radially outwardly from an outer peripheral surface of the magnetic sleeve with a gap, and a magnetic circuit formed between the outer peripheral surface of the magnetic sleeve and the ring shaped magnet. A magnetic fluid is maintained at the gap. The magnetic sleeve includes a groove arranged circumferentially around the outer peripheral surface of the magnetic sleeve, and a flange extending radially outwardly from and circumferentially around the outer peripheral surface of the magnetic sleeve. The flange has a diameter that is larger than a diameter of the outer peripheral surface of the magnetic sleeve.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile