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:
Jan. 15, 2008
Filed:
Jun. 27, 2005
John A. Grogg, LaOtta, IN (US);
John A. Grogg, LaOtta, IN (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A coupling device () including a rotatable housing () defining a clutch cavity and a clutch assembly () disposed therein. The housing defines an apply chamber () and a clutch apply member () disposed therein to bias the clutch assembly into engagement. A source of pressurized fluid for the clutch apply member comprises a pumping element () operable to pump pressurized fluid in response to rotation of a rotor (). There is a stationary plenum assembly () defining a pumping chamber, and the pumping element is operably disposed within the pumping chamber, and a drive means () is operable to transmit rotational movement of the rotatable housing () to said rotor () of the pumping element, such that clutch engagement is not dependent upon coupling input-to-output speed differential.