Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article
Patent
1989-09-14
1990-12-18
Mitchell, David M.
Land vehicles
Wheeled
Tiltable vehicles, stabilized by attendant or article
269 17, 269905, 280 797, 414589, B25H 108
Patent
active
049781324
ABSTRACT:
A pivotable hand truck for supporting or installing a heavy object is provided comprising an L-shaped structure, a pair of wheels secured to the L-shaped structure about which the structure may be pivoted between horizontal and vertical positions, and lifting means carried by the structure adapted to vertically adjust the object to a selected height above the floor surface. The lifting means is defined by a floor-engaging pedal affixed to the L-shaped structure, height-adjusting members carried by the structure, and activating means for activating the height-adjusting members when the pedal is moved between a non-operational position and an operational position. The activating means is defined by a rod member secured to the apparatus which engages the height-adjusting members, and coupling means mechanically coupling the rod member to the pedal. The coupling means is defined by a plurality of interconnecting lever arms, or, alternatively, a cable-and-pulley mechanism.
REFERENCES:
patent: 2503388 (1950-04-01), Hedlund
patent: 2955632 (1960-10-01), Stone
patent: 3458057 (1969-07-01), Stefan et al.
patent: 3643935 (1972-02-01), Bell
patent: 3861662 (1975-01-01), Morse
patent: 3871054 (1975-03-01), Schaefer
patent: 3923167 (1975-12-01), Blankenbeckler
patent: 4050671 (1977-09-01), Coleman
patent: 4141192 (1979-02-01), Augustine
patent: 4278244 (1981-07-01), Carter
patent: 4746141 (1988-05-01), Willis
patent: 4752173 (1988-06-01), Fleming
Kelso William A.
Wilson P. Henry
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