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:
Sep. 11, 1984
Filed:
Mar. 01, 1982
Karel N Vermeiren, Woerden, NL;
SKF Industrial Trading Company B.V., Nieuwegein, NL;
Abstract
The invention relates to a device for measuring the variation of a capacitive impedance, the dielectric of which consists of a lubricant, provided with an oscillator that supplies a signal having a predetermined frequency to the capacitive impedance by way of a bias impedance. The device according to the invention is characterized by a current measuring means delivering a signal depending on the current passing through the capacitive impedance to a converter the output of which delivers a direct current voltage signal coinciding with the instantaneous value of the capacitive impedance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile