Combination stepladder/handtruck apparatus

Details Combination stepladder/handtruck apparatus Combination stepladder/handtruck apparatus

1997-03-21

1998-11-17

Camby, Richard M.

Land vehicles

Wheeled

Convertible

280 4718, 280 4728, 280652, 182 20, B62B 102

Patent

active

058365958

ABSTRACT:
A stepladder/handtruck combination is used as a stepladder in a first position and as a handtruck in a second configuration. A plurality of steps are positioned to move between horizontal positions in the stepladder configuration and positions substantially parallel to the frame when the combination is being used in the handtruck configuration. A pair of wheels provides for convenient transport and a support plate used in the handtruck configuration is pivotal about a frame member and assumes a position parallel thereto when the combination is stored. Links connect the steps to the frame and provide for displacement of the steps when the combination is moved between the stepladder and handtruck configurations.

REFERENCES:
patent: 1221579 (1917-04-01), Olds
patent: 1672717 (1928-06-01), Gentner
patent: 3104889 (1963-09-01), Branch, Jr.
patent: 3430972 (1969-03-01), Fiedler
patent: 3954155 (1976-05-01), Guidara
patent: 4235449 (1980-11-01), Tarran
patent: 4258826 (1981-03-01), Munrag
patent: 4494626 (1985-01-01), Ast
patent: 4934485 (1990-06-01), Purkopile

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