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:
Mar. 21, 2000
Filed:
Aug. 11, 1997
Applicant:
Inventors:
Richard H Fox, Rathdrum, ID (US);
David M Steinbacher, Spokane, WA (US);
Wesley L Olin, Spokane, WA (US);
Vernon O Meyers, Spokane, WA (US);
William J Zimmerle, Elk, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L / ; B60T / ; F16H / ;
U.S. Cl.
CPC ...
188162 ; 188 / ; 188 34 ; 188 729 ; 188 712 ; 74625 ;
Abstract
A power-actuated parking brake is provided that produces sufficient force to set a parking brake for a locomotive. A powered drive train rotates a sheave over which a brake chain is positioned. Rotation of the sheave draws up the brake chain that is connected at one end to the parking brake. The parking brake is set when sufficient tension is applied to the brake chain by the powered drive. The drive train includes a drive shaft driven by an electric motor and connected to the sheave through a planetary reduction drive and a clutch.