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:
Jan. 01, 2013
Filed:
Jul. 07, 2009
Keith Burton Sheardown, Mississauga, CA;
Sathya Vagheeswar Venkatasubramanian, Pittsburgh, PA (US);
Jason John Freebern, Bolingbrook, IL (US);
Keith Burton Sheardown, Mississauga, CA;
Sathya Vagheeswar Venkatasubramanian, Pittsburgh, PA (US);
Jason John Freebern, Bolingbrook, IL (US);
Bombardier Transportation GmbH, Berlin, DE;
Abstract
A safety system for providing early warning notifications to an authorized track worker performing official duties along a rail road network is disclosed herein. The safety system determines the position of the authorized worker and determines an estimated time to collision between the authorized track worker and an approaching rail vehicle. The result of the safety system is that the track worker has enough time and sufficiently accurate warning that will enable the track worker to move to a point of safety so as to remain unharmed by the approaching rail vehicle.