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:
Aug. 07, 2012
Filed:
Jan. 22, 2009
Brian P. Dennis, Kalamazoo, MI (US);
Lynroy Palmer-coleman, Coloma, MI (US);
Howard H. Baldeosingh, St. Joseph, MI (US);
Brett A. Starr, Michigan City, IN (US);
Kenneth A. Dodd, Dowagiac, MI (US);
David Alley, Granger, IN (US);
Peter J. Pozivilko, Saint Joseph, MI (US);
Brian P. Dennis, Kalamazoo, MI (US);
LynRoy Palmer-Coleman, Coloma, MI (US);
Howard H. Baldeosingh, St. Joseph, MI (US);
Brett A. Starr, Michigan City, IN (US);
Kenneth A. Dodd, Dowagiac, MI (US);
David Alley, Granger, IN (US);
Peter J. Pozivilko, Saint Joseph, MI (US);
Ausco Products, Inc., Benton Harbor, MI (US);
Abstract
A ball ramp brake including a housing, a disc assembly within the housing, and an annular rotatable actuator to actuate the brake by compressing the disc assembly. The rotatable actuator includes a plurality of depressions oriented circumferentially therein which become progressively shallower in a first circumferential direction. A plurality of depressions are circumferentially oriented in a surface of the housing and become progressively shallower in a second circumferential direction. The depressions in the actuator and the depressions in the housing each have a first angle of depression that is steeper than a second angle of depression. A boot seal may be provided between the fluid chamber of an actuating cylinder and the inner area within the housing to prevent fluid leakage. In addition, a cooling chamber may be provided in the housing to improve the brakes efficiency.