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:
Feb. 01, 2005
Filed:
Mar. 12, 2003
Applicants:
Dumitru Puiu, Sterling Heights, MI (US);
Carl D. Schleuder, Novi, MI (US);
Malcolm E. Kirkwood, Livonia, MI (US);
Inventors:
Dumitru Puiu, Sterling Heights, MI (US);
Carl D. Schleuder, Novi, MI (US);
Malcolm E. Kirkwood, Livonia, MI (US);
Assignee:
Magna Drivetrain of America, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 4320 ;
U.S. Cl.
CPC ...
Abstract
A power transfer system is provided and equipped with a torque transfer coupling which includes a stageclutch and a clutch actuator. The clutch actuator includes stageand stageball ramp actuators as well as a stageclutch operably positioned between the ball ramp actuators to operatively engage the stageclutch and vary the frictional engagement thereof.