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. 10, 2014
Filed:
Apr. 24, 2009
Vincent Agache, St Martin le Vinoux, FR;
François Baleras, St Georges de Commiers, FR;
Olivier Constantin, Grenoble, FR;
Vincent Agache, St Martin le Vinoux, FR;
François Baleras, St Georges de Commiers, FR;
Olivier Constantin, Grenoble, FR;
Abstract
The invention provides a device for the gravimetric detection of particles in a fluid medium, comprising a flat electromechanical oscillator (), means for supporting the oscillator, means () for actuating said oscillator and, on either side of the plane of the oscillator (), two cavities () enabling the oscillator () to vibrate when it is activated by the actuation means (), characterized in that at least one of the two cavities () forms an integral part of a channel () for the passage of a fluid over at least one of the faces () of the oscillator and in that said actuation means () take the form of at least one electrode () lying in the same plane as that of the electromechanical oscillator and at a defined distance (g) from the oscillator, so as to ensure that the oscillator vibrates in its plane.