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. 15, 2009
Filed:
Dec. 22, 2005
Timothy E. Steenwyk, Hudsonville, MI (US);
Paul L. Kaliher, Naperville, IL (US);
David Dzioba, Frankenmuth, MI (US);
Timothy E. Steenwyk, Hudsonville, MI (US);
Paul L. Kaliher, Naperville, IL (US);
David Dzioba, Frankenmuth, MI (US);
TouchSensor Technologies, LLC, Wheaton, IL (US);
Abstract
A low impedance sensor includes thin conductive electrodes on a dielectric substrate and detects proximity of a target metal object or structure moving along defined path such as a track. The sensor includes a first conductive electrode pad having a closed, continuous geometric form and a second conductive electrode surrounding the first electrode and spaced from the first electrode by a channel of non-conductive dielectric. The first and second electrodes are optionally disposed on the same surface of the substrate. An integrated control circuit is located on the substrate proximate the first and second electrodes, and is electrically coupled to the first and second electrodes.