Barrow having high and low positioned wheels

Details Barrow having high and low positioned wheels Barrow having high and low positioned wheels

1990-09-07

1992-11-03

Kasknikow, Andres

Land vehicles

Wheeled

Extensible

280 472, 280 4721, 280 4727, B62B 104

Patent

active

051601532

ABSTRACT:
A barrow includes a cart frame having a pair of front wheels rotatably mounted on a front or bottom portion of the frame, and a pair of middle wheels slidably mounted on a middle portion of the frame by a linkage pivotally connecting the frame and the middle wheels, whereby upon an erection of the frame, the middle wheels will be downwardly collapsibly folded; and upon a lay-down of the frame, the middle wheels will be slidably extended for evenly supporting a load carried on the frame in cooperation with the front wheels.

REFERENCES:
patent: 1965944 (1934-07-01), Lea
patent: 2607606 (1952-08-01), Millen
patent: 3064990 (1962-11-01), Salvucci
patent: 4550924 (1985-11-01), Alber

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