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:
Jul. 07, 1998
Filed:
Apr. 10, 1996
Jonie Chou, Chung Ho City, Taipei Hsien, TW;
Other;
Abstract
An electrical plug which includes an insulative bottom shell which holds a metal sleeve at the center, a first annular metal cushion spaced around the metal sleeve, and second annular metal cushion spaced around the first annular metal cushion; an insulative upper shell covered on the bottom shell and having a circular opening; and electrical cable having two electrical wires respectively connected to the metal sleeve and the first annular metal cushion, and a grounding wire connected to the second annular metal cushion; and a rotary cap revolvably mounted within the circular opening of the upper shell which holds two metal contact blades, which are maintained in contact with the metal sleeve and the first annular metal cushion, and a grounding prong, which is maintained in contact with the second annular metal cushion; wherein the metal contact blades and grounding prong of the rotary cap are respectively and constantly maintained in contact with the metal sleeve and the annular metal cushions when the rotary cap is turned within the circular opening of the upper shell.