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:
May. 24, 1988
Filed:
Jun. 10, 1987
Thomas G Schrag, Hesston, KS (US);
Charles F Hood, Ranchester, WY (US);
Scott A Morton, Ranchester, WY (US);
Hesston Corporation, Hesston, KS (US);
Abstract
An electrical circuit is provided for testing for an open circuit or short circuit in an inductive coil, solenoid, or the like. The preferred circuit includes a computer activated device for selectively imposing a direct current voltage on a coil, a detector for detecting current flow through the coil induced by the voltage and for producing a current flow signal indicative of the magnitude of the current flow, a comparator for comparing the current signal with the reference signal and for producing respective first and second comparison signals when the current flow magnitude is respectively less than or greater than a reference magnitude, and a computer for determining whether the respective first and second comparison signals are produced during respective first and second points in time, such being a test indicative of the electrical integrity of the coil, solenoid, or the like.