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:
Mar. 09, 1976
Filed:
Apr. 04, 1974
Toru Aihara, Sagamihara, JA;
Koichi Kimura, Zama, JA;
Caterpillar Mitsubishi Ltd., Tokyo, JA;
Abstract
An electrically driven earth-moving or construction machine provided with an electric motor as a main motor and a reel assembly to wind or unwind a cable extending to the machine from an electric source away from the machine with the advance and reverse of the machine such that required power is supplied from the stationary electric source located outside the machine to the electric motor and means of suspending power supply to the electric motor when the cable wound on the reel is unwound to a given length with the advance of the machine whereby an accident which might otherwise be caused by the careless continuance of advance of the machine with the cable completely unwound.