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:
May. 26, 2009
Filed:
Nov. 12, 2004
Yves Decoster, Ethe, BE;
Yves Decoster, Ethe, BE;
Abstract
A seat occupancy sensor comprises a pressure detection device associated with a surface of a seat and a control unit for communicating with the pressure detection device. According to the invention the pressure detection device comprises a surface acoustic wave device including at least one surface acoustic wave resonator and an antenna and the control unit comprises an RF antenna for remotely communicating with said surface acoustic wave device. In a first embodiment, the surface acoustic wave is adapted for detecting the pressure inside a sealed chamber. In a second embodiment, a pressure sensitive switching device is connected to the surface acoustic wave device so as to activate the surface acoustic wave device when the pressure sensitive switching device is triggered.