Implements or apparatus for applying pushing or pulling force – Vehicle attached jack – Hydraulic or pneumatic
Patent
1987-07-31
1989-03-28
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Vehicle attached jack
Hydraulic or pneumatic
B66F 324
Patent
active
048157112
ABSTRACT:
Apparatus for leveling a vehicle or the like comprising a power cylinder for selectively actuating the apparatus between a horizontal storage position and a vertical support position; mounting apparatus for fixedly mounting the power cylinder means on and beneath the vehicle; a piston operably associated with the power cylinder for upward and downward power driven movement relative thereto; and support apparatus pivotally connected to the piston for movement between a horizontal storage position and a vertical support position. The support apparatus includes a lowermost plate shoe for engaging the ground and a rigid leg extending upwardly from the shoe for connection to the piston rod. A pivot connection between the leg and the piston rod enables relative pivotal movement therebetween. An abutment on the lower end portion of the power cylinder engages a pair of laterally spaced curve cam surfaces fixedly located on an upper portion of the leg during the initial portion and the terminal portion of the movement of the piston rod for causing controlled pivotal movement of the support apparatus.
REFERENCES:
patent: 2837312 (1958-06-01), Troche
patent: 3362683 (1968-01-01), Hansen
patent: 3817493 (1974-06-01), Hanser
patent: 4662610 (1987-05-01), Cofer
patent: 4711428 (1987-12-01), Carpenter
Bruno Frank L.
Nordmann Uwe H.
Ultimate Engineering, Ltd.
Watson Robert C.
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