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. 13, 1977
Filed:
Jul. 01, 1976
Hans R Fehlmann, Lenox, MA (US);
Richard D Blackburn, Dalton, MA (US);
General Electric Company, , US;
Abstract
A control circuit for limiting the output voltage of a voltage regulator or the like to a safe level for consumers connected close to the voltage regulator. The output voltage of the regulator is measured and compared to a reference. If the voltage exceeds the preset level then the circuit is energized to prevent further tap change that would increase the voltage output. A time delay is provided to prevent immediate de-energization of the circuit when the voltage drops below the preset level. Should line fluctuations cause further voltage increase, then the circuit will cause a tap change so as to reduce the output voltage. If the output voltage drops below a preset level then the circuit will prevent further tap changing which would cause any further lowering of the output voltage.