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:
Oct. 30, 2012
Filed:
Oct. 22, 2010
Chiu-san Lee, Xindian, TW;
Su-chen Shen, Xindian, TW;
Chiu-San Lee, Xindian, TW;
Su-Chen Shen, Xindian, TW;
XYZ Science Co., Ltd., Taipei County, TW;
Abstract
A multi-functional polarity-correcting plugging-coupling switching device includes a rotary component, which is rotatable and has at least one inspection element that is electrically connected to a touch control resistor and a live connection of a power plug. With a user using a hand to touch the touch control resistor, a closed circuit is formed with the human body for identifying correct position of polarization of the power plug. Further, through rotation of the rotary component, correct polarization and voltage level can be selected. Further, a resistive indicator is provided for indicating correct connection of earth line.