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:
Jul. 04, 2000
Filed:
Sep. 25, 1998
Gregory J Organek, White Fish Bay, WI (US);
David M Preston, Clarkston, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A friction brake assembly for applying a braking torque to a rotating shaft such as a transmission output shaft utilizing a primary ball ramp mechanism having a control ring and activation ring with opposed variable depth grooves and rolling members disposed therebetween to load a friction brake in response to a secondary ball ramp mechanism which creates a braking torque on the control ring to activate the primary ball ramp mechanism in response to the rotation of a control lever. Rolling members disposed in opposed variable depth grooves formed in the control lever and a control plate force the control plate towards a housing extension thereby applying a friction force to a clamp ring where the clamp ring is connected to the control ring of the primary ball ramp mechanism using a flex extension to allow relative axial movement between the clamp ring and the control ring. In this manner, the friction brake assembly of the present invention can function as a vehicle parking brake.