Telescoping lifting hand truck with a folding platform

Details Telescoping lifting hand truck with a folding platform Telescoping lifting hand truck with a folding platform

2007-11-29

2009-10-27

Mitchell, Katherine W (Department: 3634)

Fire escape, ladder, or scaffold

Convertible

C182S069400, C182S069600, C182S141000

Reexamination Certificate

active

07607513

ABSTRACT:
A hand truck having a folding platform attached to a wheeled base. The base having an arrangement of stabilizing bars and feet and vertically extensible masts that raise and lower the folding platform by operation of a motor attached to the base. The platform of the hand truck, when in the extended position, has modular removable railings attached along the perimeter of different platform sections. The platform is collapsible about pivot pins and suspended by chains attached to brackets atop the extensible masts.

REFERENCES:
patent: 2428184 (1947-09-01), Swindler
patent: 2556611 (1951-06-01), Borgman
patent: 3516512 (1970-06-01), Handschack et. al.
patent: 3521775 (1970-07-01), Vermette
patent: 3907066 (1975-09-01), Newton
patent: 3927732 (1975-12-01), Ooka et al.
patent: 4258825 (1981-03-01), Collins
patent: 4987976 (1991-01-01), Daugherty
patent: 5732792 (1998-03-01), White

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