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. 13, 2004
Filed:
Aug. 31, 2001
Tsubakimoto Chain Co., Osaka, JP;
Abstract
In a power feeding apparatus having pickup coils L and L , a rectifier circuit and output terminals U and V, the relays R and R are connected between the output side terminals of the rectifier circuit and the output terminals U and V. Whereas a protective circuit (switching control circuit) , which is connected to the pickup coils L and L and the relay coils r and r to obtain the electric power from the output side terminals of the rectifier circuit in order to carry out ON/OFF control of the relays R and R corresponding to the voltage at the both ends of the pickup coils L and L , is provide. The power feeding apparatus enables to prevent an overcurrent from flowing through a load, to prevent the circuit elements from being destroyed or burnt out due to an overcurrent generated in the pickup coils or an overvoltage generated in a resonance capacitor, to indicate an occurrence of an abnormality and to control the electric power supply by means of a remote control.