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:
Jun. 02, 2020
Filed:
Jul. 22, 2016
Applicant:
Usui Co., Ltd., Shimizu-cho, Sunto-gun, Shizuoka, JP;
Inventor:
Hiroki Sugawara, Shimizu-cho, JP;
Assignee:
USUI CO., LTD., , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 35/02 (2006.01); F01P 7/04 (2006.01); F01P 5/04 (2006.01); F01P 7/08 (2006.01);
U.S. Cl.
CPC ...
F16D 35/024 (2013.01); F01P 5/04 (2013.01); F01P 7/042 (2013.01); F01P 7/081 (2013.01);
Abstract
An external control type fan clutch device has an electromagnet fixed to a rotating shaft. The electromagnet is energized to activate a valve member formed of a plate spring and an armature and provided to a drive disk or a sealed housing to externally control opening and closing an oil circulating flow passage (oil supply port). The valve member is structured so that the armature attached to the plate spring of the valve member is divided into a plurality of pieces in the direction from the base end side to the oscillating end side of the plate spring to provide a plurality of bend points of the plate spring.