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:
Aug. 12, 2014
Filed:
Oct. 26, 2009
Michele Farano, Turin, IT;
Marco Marozzo, Pianezza, IT;
Michele Farano, Turin, IT;
Marco Marozzo, Pianezza, IT;
Elbi International S.p.A., Turin, IT;
Abstract
The device () comprises a body () in which are formed a first and second chamber () separated sealingly from each other by a resilient diaphragm (). The first chamber () has an inlet opening () intended to be put in pneumatic communication with the region of a container which is above the liquid; the second chamber () communicates with the atmosphere. A winding () is mounted in a fixed position in the body (), on the side opposite the first chamber () with respect to the diaphragm (). A core () is coupled to the diaphragm () and is movable with respect to the winding () such that in operation the inductance of the winding () varies as a function of the position of the core. The device also comprises a first spring () tending to move the core () towards the diaphragm (), and a second spring () tending to oppose the action of the first spring (). The second spring () is positioned in the second chamber ().