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:
Dec. 15, 2009
Filed:
Jul. 30, 2007
Meng-chiao Kan, Manhasset, NY (US);
Meng-feng Tsai, Bethpage, NY (US);
Congjun Gou, Fupin, CN;
Quingjun LI, Hengyang, CN;
Lihua Zhang, Xiangtan, CN;
Meng-Chiao Kan, Manhasset, NY (US);
Meng-Feng Tsai, Bethpage, NY (US);
Congjun Gou, Fupin, CN;
Quingjun Li, Hengyang, CN;
Lihua Zhang, Xiangtan, CN;
W.A.C. Lighting Co, Garden City, NY (US);
Abstract
A continuity tester for a lamp, coaxial, plug connector has a receptacle connector with first and second coaxial, annular receptacle contacts at a same axial spacing apart as power and ground contacts of the lamp connector for electrical engagement when plugged therein and, a probe contact engageable with only the power contact. First and second LEDs connect to a battery via first and second parallel circuits. A biasing resistor in the second circuit ensures that battery power is provided to only the first LED when a battery circuit is completed only by electrical engagement of the first contact and the probe contact with the power contact of the male coaxial connector to signal absence of a short circuit and to only the second LED when a circuit is completed also by engagement of the second tester contact with the ground contact of the lamp connector to signal a short circuit.