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. 01, 1985
Filed:
Jul. 08, 1983
Applicant:
Inventors:
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 / ; 192 / ;
Abstract
A temperature-responsive fluid coupling device for driving a cooling fan of an internal combustion engine includes a ball check valve mechanism which is installed in a fluid return passage and a pumping passage, respectively. The valve mechanism comprises a ball check valve positioned in a slidable state in a radial direction, a spring biasing the check valve toward a closed position thereof, and a cap member supporting the spring and limiting a distance of a sliding movement of the check valve.