Hand truck

Details Hand truck Hand truck

1985-12-11

1987-07-21

Mitchell, David M.

Land vehicles

Wheeled

Tiltable vehicles, stabilized by attendant or article

280 4721, 280 4727, B62B 108

Patent

active

046813306

ABSTRACT:
A hand truck has a load supporting frame having a handle, and a load supporting platform provided on a lower portion of the load supporting frame. A pair of main wheels are provided on a lower portion of the load supporting frame, and an auxiliary frame is pivotally mounted on a lower portion of the load supporting frame. A pair of auxiliary wheels are provided on ends of the auxiliary frame. An extensible cylinder device is provided between the load supporting frame and the auxiliary frame so as to change the angle there-between.

REFERENCES:
patent: 3603623 (1971-09-01), Widman
patent: 3655212 (1972-04-01), Krass
patent: 4091942 (1978-05-01), Shelton

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