Articulated forklift truck

Motor vehicles – Steering by driving – Independently operable drive motors

Reexamination Certificate

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Details

C180S006500, C180S305000, C180S212000

Reexamination Certificate

active

07117962

ABSTRACT:
An articulated forklift truck for use in narrow aisles comprises a front chassis section (10) having a first pair of ground-engaging wheels (20) and a rear chassis section (12) having a second pair of ground-engaging wheels (22). The front chassis section (10) carries a mast (16) and lift forks (18) and is pivoted to the rear chassis section (12) about a substantially vertical axis (14) to allow the truck to be steered. Both front wheels (20) but only one of the rear wheels (22) are driven by electric of hydrostatic motors (24, 26).

REFERENCES:
patent: 2774434 (1956-12-01), Ferris
patent: 3515300 (1970-06-01), Hollenbach
patent: 3901339 (1975-08-01), Williamson
patent: 4157125 (1979-06-01), Bushell et al.
patent: 4325442 (1982-04-01), Groenig
patent: 5312219 (1994-05-01), Brown
patent: 6116843 (2000-09-01), Braud
patent: 6913102 (2005-07-01), Sugata et al.
patent: 2003/0132038 (2003-07-01), Callan et al.
patent: 2003/0209371 (2003-11-01), Brown
patent: 0855362 (1998-04-01), None
patent: 2265344 (1993-09-01), None

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