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. 12, 2011
Filed:
Jun. 29, 2005
Long Zhang, Shanghai, CN;
Long Zhang, Shanghai, CN;
Other;
Abstract
A power plug having leakage current protection function is disclosed. The power plug includes a changeover mechanism for making and breaking electrical connection between the input (line) and output (load) side of the plug, and a control circuit for detecting a leakage current and a short circuit. A reset button and a test button are provided. When the reset button is pressed, a reset shaft operates the changeover mechanism to achieve electrical connection between the input and output sides. When there is a current leakage, a short circuit or other abnormal conditions at the output side of the plug (or the input side of the appliance connected to the plug), the control circuit generates a signal to operate the changeover mechanism to electrically disconnect the input and output sides. The test button can simulate a short circuit to electrically disconnect the input and output sides.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile