Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1995-04-24
1997-03-25
Boehler, Anne Marie
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
114363, 267131, 297199, B62J 104
Patent
active
056135700
ABSTRACT:
A snowmobile seat suspension includes a seat support member pivotally connected at its front end to the chassis of a snowmobile, a yieldable support member supporting the rear of the seat support member and at least one air cylinder yieldable in a downward direction but damping in the upward direction. The air cylinder is connected to an inlet hose having a length of 1 to 6 inches, the hose containing a one-way valve which allows air to enter the cylinder without restriction but restricts outflow of air from the cylinder.
REFERENCES:
patent: 2702088 (1955-02-01), Klimer
patent: 2961033 (1960-11-01), Galbraith
patent: 3599956 (1971-08-01), Harder
patent: 3736020 (1973-05-01), Pilachowski et al.
patent: 4632355 (1986-12-01), Thomas
patent: 4946145 (1990-08-01), Kurabe
patent: 5376978 (1994-11-01), Mardikian
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