Motor vehicles – With means for promoting safety of vehicle – its occupant or... – Responsive to absence or inattention of operator – or...
Patent
1980-01-24
1982-06-29
Spar, Robert J.
Motor vehicles
With means for promoting safety of vehicle, its occupant or...
Responsive to absence or inattention of operator, or...
187 9R, 303 19, B60K 100
Patent
active
043368603
ABSTRACT:
A material handling vehicle is disclosed which is in the form of a battery-operated lift truck having a drive unit including an electric motor and a brake and having a hydraulically operated power steering system controlled from a steering wheel on a vertically movable platform. A pump of the power steering system is operated by an electric motor which is energized through a deadman switch on the operator's platform. The brake of the drive unit is spring-biased toward an engaged condition and is released by a hydraulic cylinder supplied with fluid from the power steering pump, the brake being released by the hydraulic back pressure of the power steering system.
REFERENCES:
patent: 3080019 (1963-03-01), Hastings, Jr.
patent: 3280401 (1966-10-01), Cook et al.
patent: 3280933 (1966-10-01), Jones
patent: 3525423 (1970-08-01), Sheiry, Jr.
patent: 3848692 (1974-11-01), Messner
patent: 3870119 (1975-03-01), Wurst
patent: 3976158 (1976-08-01), Shaffer
patent: 4061053 (1977-12-01), Keene et al.
patent: 4111283 (1978-09-01), Hastings, Jr.
patent: 4116296 (1978-09-01), Pleier et al.
Kramer James C.
Noller Fred W.
Noland Kenneth
Spar Robert J.
The Prime-Mover Co.
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