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:
Jul. 21, 2015
Filed:
Nov. 05, 2012
Czarnek & Orkin Laboratories, Inc., Highland Park, IL (US);
Robert Czarnek, Johnstown, PA (US);
Czarnek & Orkin Laboratories, Inc., Highland Park, IL (US);
Abstract
A fluid level sensor system includes a primary coil, at least one secondary coil adjacent the primary coil, a control system operative for applying a time varying signal to the primary coil and for detecting a response of the secondary coil to the time varying signal in the primary coil, and at least one float resonator adapted to move adjacent the primary and secondary coils. Each float resonator includes an electrical storage device and a circuit which is switchable between a first state that enhances the response of a section of the secondary coil adjacent the float resonator to the time varying signal in the primary coil and the charging of the electrical storage device, and a second state where the effect of the circuit on the response of the secondary coil to the time varying signal in the primary coil is diminished relative to the first state.