Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Reexamination Certificate
2006-08-31
2010-12-07
Winner, Tony H. (Department: 3611)
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
C180S193000
Reexamination Certificate
active
07845448
ABSTRACT:
A tracked vehicle, especially a snow scooter, that has two laterally spaced-apart front drive-track assemblies (10), each of which is turnable around a substantially vertical axis and which are coupled for common turning. Each drive-track assembly is carried by a vehicle chassis (11) via a vertically movable link device, which in respect of vertical turning rests against the chassis via a spring-damper assembly (7), and the drive-track assemblies are mechanically coupled by a parallel steering mechanism (23-26), which is maneuverable by a driver of the vehicle.
REFERENCES:
patent: 6006847 (1999-12-01), Knight
patent: 6095275 (2000-08-01), Shaw
patent: 6874586 (2005-04-01), Boivin et al.
patent: 2008/0156548 (2008-07-01), Mallette et al.
patent: 925032 (1963-05-01), None
patent: 04-071981 (1992-03-01), None
patent: WO 93/18956 (1993-09-01), None
Dickstein & Shapiro LLP
Winner Tony H.
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