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:
Apr. 22, 1986
Filed:
Sep. 28, 1984
Masaharu Hayashi, Toyota, JP;
Masato Itakura, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A temperature responsive coupling device for driving a cooling fan of an internal combustion engine includes a shaft rotatably mounted in an output coupling member coaxially with an input coupling member which is operatively coupled to the output coupling member by means of a coupling. A bimetal spring is operatively connected to one end of the shaft and a valve plate is connected to the opposite end of the shaft for controlling the flow of fluid within the fluid coupling. The shaft is supported in the output coupling member by means of a sealed bearing in order to decrease the sliding torque produced by the rotation of the shaft. A cover plate is positioned in front of the sealed bearing to protect the bearing from moisture and openings are operatively associated with the cover plate to allow any moisture which might have entered between the cover plate and the bearing to be expelled by centrifugal force.