Implements or apparatus for applying pushing or pulling force – Inclined plane lifter
Patent
1991-03-25
1993-01-05
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Inclined plane lifter
E02C 300
Patent
active
051763613
ABSTRACT:
A vehicle wheel gripper assembly and method for use in extracting a vehicle from a slippery and unlevel hole or rut in a ground portion having ice or snow or loose sand on loose gravel or the like. The assembly includes a ramp section, a flat section, and an interconnecting hinge means. Each section has friction grips on the top thereof and ground connectors on the bottom thereof. The ground connectors become continuously imbedded and connected to the ground by horizontal friction forces applied by the wheel on the friction grips.
REFERENCES:
patent: 2297556 (1942-09-01), Herman
patent: 3178156 (1965-04-01), Rigers
patent: 3326525 (1967-06-01), Kauppi
patent: 3847376 (1974-11-01), Binding
patent: 3870277 (1975-03-01), West
patent: 3917227 (1975-11-01), West
Watson Robert C.
Weiss Harry M.
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