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:
Nov. 09, 1976
Filed:
Aug. 25, 1975
Masaharu Hayashi, Toyota, JA;
Motoharu Yoshida, Ichinomiya, JA;
Aisin Seiki Kabushiki Kaisha, , JA;
Abstract
A temperature-responsive viscous fluid coupling for use in automotive vehicles includes a rotatable input member driven by an engine and a rotatable output member driven by the input member via shearing force of viscous fluid. Notch means are successively provided on the whole outer periphery of the disk-shaped input member, and each of the notch means includes a line-shaped edge and a groove whereby substantially no fluid acts to transmit torque when the engine temperature is low, and the rotation of an engine cooling fan connected to the output member is kept low even when the coupling device is associated with the vehicle engine having a maximum rotation of more than 3,000 r.p.m. or 4,000 r.p.m.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile