Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1995-10-04
1998-03-24
Johnson, Brian L.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
180190, B62M 2702
Patent
active
057302421
ABSTRACT:
A drive belt suspension for a snowmobile which permits the front and rear of the drive track to move independent of each other and load respective front and rear suspension means until a predetermined degree of travel has occurred. Thereafter, both suspension systems are loaded upon continued movement so as to provide an increase in rate of the suspension system to prevent bottoming.
REFERENCES:
patent: 3773126 (1973-11-01), Irvine
patent: 3913694 (1975-10-01), Forsgren
patent: 3966181 (1976-06-01), Lessard
patent: 5265692 (1993-11-01), Mallette
patent: 5370198 (1994-12-01), Karpik
Johnson Brian L.
Vanaman Frank
Yamaha Hatsudoki Kabushiki Kaisha
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