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. 10, 2009
Filed:
Jun. 22, 2004
Applicants:
Howard Sommerfeld, Oak Forest, IL (US);
Scott Natschke, Chicago, IL (US);
Inventors:
Howard Sommerfeld, Oak Forest, IL (US);
Scott Natschke, Chicago, IL (US);
Assignee:
WABTEC Holding Corp., Wilmerding, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05G 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hand brake having mechanism for retaining the hand brake in a substantially released and hold position to prevent unwanted application of the railway car brakes due to vibration or other energy sources during railway car motion. Such mechanism includes at least one spring mounted to the hand brake housing substantially engaging a release lever disposed within a quick release mechanism so as to prevent reverse rotation of the release lever causing an unintended take-up of the chain.