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:
Apr. 20, 2010
Filed:
Jun. 05, 2007
Chengli LI, Shanghai, CN;
Long Zhang, Shanghai, CN;
Chengli Li, Shanghai, CN;
Long Zhang, Shanghai, CN;
Shanghai ELE Manufacturing Co., Ltd, Shanghai, CN;
Abstract
An improved ground-fault circuit interrupter (GFCI) device has a moveable lock plate controlled by a relay to block a hole under the reset guiding member to prevent reset of the device. The moveable lock plate blocks the hole and prevents reset when the relay is not energized, and expose the hole to allow reset when the relay is energized. The relay is powered by a power supply circuit which is connected in series with a solenoid across the input side of the GFCI. The solenoid is controlled by a control circuit, and causes a disconnecting assembly to disconnect the input and output sides of the GFCI when a leakage current is detected. If the solenoid malfunctions, or if the GFCI device is reversely wired, the relay is not energized and the device cannot be reset.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile