Hand truck apparatus for lifting as well as transporting loads,

Details Hand truck apparatus for lifting as well as transporting loads, Hand truck apparatus for lifting as well as transporting loads,

1985-05-08

1988-06-21

Werner, Frank E.

Material or article handling

Apparatus for moving material to a position in the erection...

254 2R, 269905, 280 4734, 403 72, 403119, 414490, 414786, B60P 102, B66F 906

Patent

active

047521732

ABSTRACT:
A hand truck apparatus configured for transporting, as well as lifting, a load and also configured so that the hand truck apparatus is self-stabilizing under all conditions of use. The hand truck apparatus in accordance with the invention provides mechanical advantage for lifting the load and is configured for precisely lifting the load to a raised position. The hand truck apparatus in accordance with the invention is self-stabilizing when a load is not placed on the hand truck apparatus, as well as when a load is placed on the hand truck apparatus and for any raised position of the load. The hand truck apparatus in accordance with the invention is particularly advantageous when used in connection with transporting and installing solid core doors. Hinge plates are first attached to the edge of the door. The door is then placed on the hand truck apparatus and transported to the location of installation. The door can then be lifted by the hand truck apparatus to the proper position for securing the hinge plates to the door frame. Since the hand truck apparatus is self-stabilizing with the door in the raised position, the user can release the hand truck apparatus and secure the hinge plates to the door frame. As a result, a single worker can install a door whereas heretofore at least two workers were required for the task. Other features are also disclosed.

REFERENCES:
patent: 2514825 (1950-07-01), Zenko
patent: 2681712 (1954-06-01), West
patent: 2797004 (1957-06-01), Miller
patent: 2904201 (1959-09-01), Rhodes
patent: 3035727 (1962-05-01), Turner
patent: 3510016 (1970-05-01), Wolff et al.
patent: 4050597 (1977-09-01), Hawkins
patent: 4536123 (1985-08-01), Snyder

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