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:
Jan. 19, 1982
Filed:
Nov. 07, 1979
Eddie H Bailen, Omaha, NE (US);
Omeco-St. John Co., Omaha, NE (US);
Abstract
Protection against a high voltage apparatus becoming inadvertently grounded and thereby presenting a shock hazard is provided by introducing a ground fault interrupter in the power supply to the electrical control device which controls the supply of high voltage power. The two-wire power supply line between the ground fault interrupter and the control device has one wire grounded ahead of the interrupter and the other wire connected to the high voltage apparatus through a rectifier and a D.C. filter. Thus if the high voltage apparatus becomes accidentally grounded there is a drain to ground from the ground fault interrupter through the rectifier connection, which drain causes the interrupter to cut off the power supply to the control device thereby shutting down the high voltage apparatus.