Elevator cart apparatus

Details Elevator cart apparatus Elevator cart apparatus

1993-05-24

1994-11-29

Tyson, Karin L.

Land vehicles

Wheeled

Extensible

280 4317, 280 4734, B62B 302

Patent

active

053683196

ABSTRACT:
An elevator cart is arranged to include a first tubular frame mounting a second tubular frame thereto in a reciprocating relationship relative to the first tubular frame to permit selective lifting of a workpiece on the second tubular frame relative to the first tubular frame. To this end, a handle is pivotally mounted to the first tubular frame simultaneously displacing an actuator link that in turn is arranged to rotate simultaneously a plurality of cam rods, with each cam rod having a plurality of cam members in abutment with the second tubular frame to effect a lifting and lowering of the second tubular frame upon pivoting of the handle.

REFERENCES:
patent: 703744 (1902-07-01), Scott
patent: 865987 (1907-09-01), Barlow
patent: 979093 (1910-12-01), Porteous
patent: 1763535 (1930-06-01), Nuttall
patent: 2077265 (1937-04-01), Reed
patent: 2485797 (1949-10-01), Will
patent: 3137250 (1964-06-01), Hutchinson
patent: 3544127 (1970-12-01), Dobson
patent: 4213624 (1980-07-01), Sanders
patent: 5186479 (1993-02-01), Flowers

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