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:
Sep. 01, 2009
Filed:
May. 18, 2006
Applicants:
David L. Mcdermott, Wixom, MI (US);
Joseph G. Sawyer, Grand Ledge, MI (US);
Inventors:
David L. McDermott, Wixom, MI (US);
Joseph G. Sawyer, Grand Ledge, MI (US);
Assignees:
Behr America, Troy, MI (US);
Behr Industry America, L.P., Belmont, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 35/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A viscous fluid clutch for controlling the rotation of an engine cooling fan has a dividing disk separating a storage chamber from a working chamber. The dividing disk includes an opening having a geometry that defines a drain-back path to the working chamber regardless of the angular orientation of the clutch.