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:
Nov. 12, 2013
Filed:
Nov. 15, 2011
Christopher Love, Thornhill, CA;
Wei Wang, Markham, CA;
Jeffrey George Dayman, Waterloo, CA;
Other;
Abstract
An ultra-low sensitivity ground fault circuit interrupter (GFCI) device and a method for manufacturing the device is disclosed. The GFCI device detects an unbalanced current between line and return conductors that results from an unintended path to ground. The GFCI device disconnects the current source when a leakage current is detected. The GFCI device includes a current transformer that has its core wrapped with the line and return conductors. The line and return conductors are secured around the core in a fixed position. During manufacture of the GFCI device an amplifier of the GFCI can be adjusted so that the GFCI device disconnects the current source when a leakage current exceeds a desired level.