Land vehicles – Runner vehicle – Central runner
Patent
1997-09-30
2000-02-01
Mai, Lanna
Land vehicles
Runner vehicle
Central runner
280 141, 280 221, B62B 904
Patent
active
060193808
ABSTRACT:
A mono-ski frame adapted for skiing in the sitting position and designed to allow a rearward and downward traverse of the upper portion of the frame relative to the lower portion during loaded conditions to enhance the carvability during the turn. The mono-ski frame includes a lower frame having a forward end and a rearward end adapted to be attached to a ski. A foot rest is attached to the forward end of the lower frame. An upper frame having a seat mounted thereon is moveable relative to the lower frame via a first link arm. The first link arm is pivotally attached at a first position to the lower frame and at a second position to the upper frame, wherein the first position is located forwardly of the second position so that the seat attached to the upper frame travels in a rearward direction under loaded conditions. A shock absorber adapted to minimize the transfer of vibration between the lower frame and the upper frame is coupled between the upper and lower frames and includes a piston assembly and a spring coupled to the piston assembly for biasing the piston assembly toward an extended uncompressed position.
REFERENCES:
patent: 3325179 (1967-06-01), Bissett
patent: 3632125 (1972-01-01), Krippelz
patent: 3799564 (1974-03-01), Eisenchmid
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patent: 4193609 (1980-03-01), Bissett
patent: 4310169 (1982-01-01), Brough
patent: 4324409 (1982-04-01), Larsen et al.
patent: 4632408 (1986-12-01), Olpp et al.
patent: 4848841 (1989-07-01), Giselsson
patent: 5518080 (1996-05-01), Pertile
Bartlett Russell
Charron Paul
Goodman Michael L.
Mai Lanna
Restifo Jeff
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