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. 08, 2008
Filed:
Sep. 30, 2005
Applicant:
Jun Yoshioka, Canton, MI (US);
Inventor:
Jun Yoshioka, Canton, MI (US);
Assignee:
Dana Automotive Systems Group, LLC., Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 25/02 (2006.01); F16H 48/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A torque-coupling assembly comprises a hydraulic fluid reservoir provided for storing a supply of a hydraulic fluid, a hollow coupling casing rotatable by an outside drive torque, a hydraulic pump located within the coupling casing to generate a hydraulic pressure, a supply passage fluidly connecting the hydraulic fluid reservoir to a suction passage of said hydraulic pump and a venting passage. The venting passage is provided for operatively fluidly connecting the supply passage to an ambient atmosphere for selectively enabling or disabling the hydraulic pump.