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:
Jun. 24, 2008
Filed:
Nov. 19, 2001
Arnaud Dufournier, Clermont-Ferrand, FR;
Arnaud Dufournier, Clermont-Ferrand, FR;
Dufournier Technologies SAS, Cournon d'Auvergne, FR;
Abstract
When the tire reaches a limit of wear level, tire wear indicators generate an acoustic signal by knocking the ground. Magnetic, optical and mechanical versions exist. A detector made of a microphone located under the vehicle and a processing central unit switches on a warning included in the dashboard. In a more sophisticated version, the detector recognizes the incriminated wheel using the phase of the acoustic signal and the information from the ABS™. Application to the detection of the decay of a tire, or any other type of wear surface such as pad, or similar, and to the detection of the presence of snow chains or spikes.