Motor vehicles – Special driving device – Portable track
Patent
1977-08-08
1980-05-27
Bertsch, Richard A.
Motor vehicles
Special driving device
Portable track
180 67, B62D 5504
Patent
active
042045835
ABSTRACT:
A wheeled vehicle having a source of driving power and a chassis extending longitudinally of the vehicle, which comprises a rotatable endless track device disposed between front and rear wheels of the vehicle, a system for selectively raising and lowering the endless track device with respect to the chassis whereby when the endless track device is lowered it is brought into contact with the road surface, and a connecting apparatus for drivably connecting the endless track means with the source of driving power when the endless track device is lowered and brought into contact with the road surface.
REFERENCES:
patent: 1340789 (1920-05-01), Ollivier
patent: 1729374 (1929-09-01), Ehrhart
patent: 2110439 (1938-03-01), Gordon
patent: 3263763 (1966-08-01), Adams
patent: 3374036 (1968-03-01), Shaw
Saito Masaharu
Toyoura Hirozumi
Bertsch Richard A.
Carroll John A.
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