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:
Aug. 14, 1979
Filed:
Dec. 19, 1977
Luther M Boggs, Dunwoody, GA (US);
James A Hudson, Jr, Atlanta, GA (US);
Western Electric Company, Inc., New York, NY (US);
Abstract
An opening in a jacket (15) of a cable (16) is detected as the jacketed cable is moved from an extruder (14) through a probe (21) which is positioned in a cooling trough (17) and which comprises first and second aligned, spaced sensors (24, 26) with each of the sensors being connected to an arm of a bridge transformer (37). Electrical circuitry is designed to cause an unbalance voltage in a secondary (43) of the transformer (37) in response to conductance unbalance as the opening in the jacket (15) is advanced through the first sensor (24) and to cause an unbalance voltage of opposite polarity in the secondary (43) in response to conductance unbalance as the opening in thejacket (15) is advanced through the second sensor (26). Logic circuitry (66) tests the unbalance voltages for threshold and peak values to discern jacket holes despite the presence of extraneous signals such as those which are caused by noise.