Powered hand truck for climbing steps

Details Powered hand truck for climbing steps Powered hand truck for climbing steps

1976-01-19

1977-11-08

Peters, Jr., Joseph F.

Motor vehicles

Special driving device

Stepper

280 53, B62B 502

Patent

active

040571190

ABSTRACT:
A hand truck powered by pressurized gas for transporting a load up one or more steps, having a unique mechanical design permitting it to execute a smooth climbing motion up nosed or unnosed steps, and further having a power control system implementing several novel safety and convenience features.

REFERENCES:
patent: 2193283 (1940-03-01), Haberson
patent: 3053546 (1962-09-01), Muirhead
patent: 3417831 (1968-12-01), Lake
patent: 3494440 (1970-02-01), Hanson
patent: 3550709 (1970-12-01), Hottel
patent: 3554309 (1971-01-01), Abercrombie

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