B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
254/148
B66F 3/44 (2006.01) B66F 3/42 (2006.01)
Patent
CA 1202614
ABSTRACT OF THE DISCLOSURE In order in a conventional jack, whether hydraulic or mechanical, to eliminate the previously required manual drive, there is provided in a hydraulic jack, which is of the type including a vertical cylindrical chamber within which operatively moves a piston acting as the elevator element, an electromotor complementary to the chamber-piston assembly, the electromotor preferably being direct current and with a working voltage of 12 volts. A motor is provided for driving a gear pump which transfers the oil from a supply tank to the pressure chamber between the cylinder and the lifting piston. One of the pinions of the gear pump is directly coupled to the electromotor shaft, and the second pinion rotates idly through its coupling to the first pinion. There are appropriate ductings between the gear pump and the pressure chamber and also between the pressure chamber and the oil supply chamber, to provide the hydraulic drive circuit.
422446
Arbeloa Jesus Iciz
Ridout & Maybee Llp
LandOfFree
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