Four-wheel hand truck with elevator

Details Four-wheel hand truck with elevator Four-wheel hand truck with elevator

1996-09-30

1998-01-13

Merritt, Karen B.

Material or article handling

Self-loading or unloading vehicles

With load-receiving portion, or significant section thereof,...

280 53, 280 4724, 187233, B65G 700

Patent

active

057072000

ABSTRACT:
A four wheel hand truck with elevator in which one pair of wheels are stationary as in a typical hand truck and the other pair of wheels are slidable upon vertical shafts and powered by a cable and winch assembly. A person can place the slidable pair of wheels on the outward edge of a pick-up truck bed and lower the entire hand truck and associated load to the ground or vice versa.

REFERENCES:
patent: 2493824 (1950-01-01), Noros
patent: 2714462 (1955-08-01), Butler
patent: 2904201 (1959-09-01), Rhodes
patent: 3052323 (1962-09-01), Hopfeld
patent: 3199692 (1965-08-01), Lebre
patent: 3873118 (1975-03-01), Takagi
patent: 3896904 (1975-07-01), Walker
patent: 4049083 (1977-09-01), Garvey
patent: 4728245 (1988-03-01), Shelton
patent: 4737065 (1988-04-01), Ju
patent: 5195762 (1993-03-01), Pressly
patent: 5290051 (1994-03-01), Olson
patent: 5419672 (1995-05-01), Poe

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