Screw style hydraulic jack
AssigneeAlltrade Tools LLC
InventorsHECTOR RAY HERNANDEZ, PATRICK B. MAYES
Life of this patent
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Abstract
A hydraulic jack system is described, suitable for lifting heavy loads such as automobiles. The jack system is operable by a powered driver fitted with a socket for coupling to a nut rotationally fixed to the jack system, wherein the driver is removable directly after use. As such, no handle is required for activating the hydraulic jack system. The jack system has a low profile, reducing the danger of being accidentally knocked into during operation. When operated by a powered driver, the driver rotates a camshaft mounted to the jack system, the camshaft reciprocally drives a push rod that activates a plunger for hydraulically elevating a piston ram.
Claims11
A hydraulic jack system of a kind having a large hydraulic cylinder for elevating a ram piston, a small hydraulic cylinder hydraulically interconnected with the large cylinder for applying an input load via a plunger, comprising:
- a base plate upon which the large cylinder and the small cylinder are mounted;
- a push rod for reciprocally moving the plunger on a first axis;
- a camshaft configured to rotate about a second axis, the camshaft having a first terminal end and a second terminal end, each terminal end lying on the second axis, wherein at least one terminal end is tipped only by a nut rotationally fixed to the at least one terminal end.
Dependencies are inferred from the claim text.