Hydraulic jack ramp

Details Hydraulic jack ramp Hydraulic jack ramp

1988-10-26

1989-12-12

Hartman, Judy

Implements or apparatus for applying pushing or pulling force

Inclined plane lifter

254 8R, 254 93R, E02C 300

Patent

active

048862436

ABSTRACT:
A hydraulically elevatable ramp apparatus is set forth wherein a ramp formed of an upper and lower portion with a pivotal hinge joining the two portions secured to a hydraulic jack at a forwardmost position. The ramp at a first lowered position accepts vehicles of diminished ground clearance wherein the vehicle is thereafter elevated to a second position whereupon the lower hinged portion is automatically repositioned upon elevation of the upper portion. The jack is formed with a resilient pad to insure a non-slip arrangement upon elevating a vehicle to a second elevated position.

REFERENCES:
patent: 1459954 (1923-06-01), Hancock
patent: 2575160 (1951-11-01), Clarke
patent: 2924427 (1960-02-01), Larson
patent: 3632085 (1972-01-01), Traywick
patent: 3648856 (1972-03-01), Gaarder
patent: 3664635 (1972-05-01), Kincaid
patent: 3807694 (1974-04-01), Butorac
patent: 3847376 (1974-11-01), Binding
patent: 3946886 (1976-03-01), Robinson
patent: 4077607 (1978-03-01), Lovelady
patent: 4625944 (1986-12-01), Mankey

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