Motor vehicles – Special wheel base – Having only three wheels
Patent
1981-01-06
1983-09-13
Peters, Jr., Joseph F.
Motor vehicles
Special wheel base
Having only three wheels
180DIG3, 280 62, 297DIG4, B62D 6108
Patent
active
044036736
ABSTRACT:
A powered vehicle suitable for use as a wheel chair is disclosed. The vehicle has rear caster wheels which can swivel freely or one can be prevented from swivelling which allows the vehicle to manoeuvre in confined spaces and around obstacles. The vehicle has at least one steerable central front wheel which is steerable at least about 90.degree. on either side of a straight ahead direction. A power drive operates the front wheel in forward and reverse directions. At least two rear swivel caster wheels form a tricycle arrangement with the central front wheel, each of the caster wheels having a free position wherein each caster wheel is free to swivel in any direction, at least one caster wheel having a locked position, wherein the caster wheel is lockable in the straight ahead direction, and a remote control selector is provided to change from the free position to the locked position of the caster wheel.
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patent: 4037676 (1977-07-01), Ruse
patent: 4165127 (1979-08-01), Vago
Peters Jr. Joseph F.
Weaver Ross
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