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:
Dec. 07, 2021
Filed:
Jul. 13, 2018
Eltek S.p.a., Casale Monferrato, IT;
Mauro Zorzetto, Casale Monferrato, IT;
Giorgio Martinengo, Casale Monferrato, IT;
Costanzo Gadini, Casale Monferrato, IT;
ELTEK S.P.A., Casale Monferrato, IT;
Abstract
A capacitive level sensor device, for detecting the level of a medium contained in a container, comprises a circuit support, which extends longitudinally substantially according to level-detection axis. The circuit support has, in a detection region thereof, at least one first plurality of first capacitive elements, which comprise at least one first array of first electrodes (J), preferably spaced from one another along the level-detection axis, which are arranged in a position corresponding to at least one first side of the circuit support. The sensor device has a casing body which comprises an electrically insulating and fluid-tight detection portion, which covers the detection region of the circuit support. The detection portion of the casing body comprises an overmoulded outer coating, made of a first electrically insulating polymeric material, which defines an outer surface of the casing body designed to be in contact with the medium the level of which has to be detected. The first electrodes (J) are enclosed within the supporting structure of the circuit support at least at the detection region thereof, and, at least at the detection region, between the overmoulded outer coating and the supporting structure of the circuit support there is set at least one intermediate layer made of an electrically insulating material different from the first material.