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. 14, 1989
Filed:
Jan. 19, 1988
Applicant:
Inventor:
Ryuji Nakamura, Okazaki, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Aichi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 / ; 192 / ;
Abstract
A viscous fluid coupling for use with a fan that cools as automobile engine includes a rotor driven by the engine. The rotor is housed in a housing formed by a case and a cover. A rear plate is mounted on the inner surface of the case and has an orifice. A front plate is mounted on the inner surface of the cover and has a hole through which viscous fluid can flow. A first reservoir is formed by the cover and the front plate. A second reservoir is formed by the rear plate and the case. Teeth are formed on the outer surface of the rotor. A protrusion is formed on the outer periphery of the rotor near the orifice.