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. 20, 2007
Filed:
Nov. 07, 2003
Robert Lohr, Hangenbieten, FR;
Laurent Verdier, Strasbourg, FR;
Robert Lohr, Hangenbieten, FR;
Laurent Verdier, Strasbourg, FR;
Lohr Industrie, Hangenbieten, FR;
Abstract
The device is characterized by units of pairs of two friction or sliding shoes () and (), running on a metal guide rail (), each fixed to a self-guidance unit (), by way of rollers () and (), running along the guide rail. The shoes () and () from an electrical circuit with the guide rail (), comprising a detector with a safety loop supplied by a low voltage (BT+ and BT−) generator loop through which a current flows when the electrical grounding contacts via the shoes () and () and the guide rail () are correct. According to the quality of the electrical contact at the shoes () and (), the security loop will be open or closed, representing a potential risk or no risk. The invention is of utility to producers of public transport vehicles which run on tires and are self-guiding.