Motor vehicles – Special wheel base – Having only two wheels
Reexamination Certificate
2006-07-03
2009-06-16
Dickson, Paul N (Department: 3611)
Motor vehicles
Special wheel base
Having only two wheels
C280S274000, C280S283000
Reexamination Certificate
active
07546894
ABSTRACT:
A motorcycle frame has an improved front and rear suspension system incorporating two horizontally placed air bag suspension mechanisms, the motorcycle frame comprising an upper support member having a front backbone tube attached to two rear backbone tubes, a lower support member having a descending front downtube attached to two lower frame rails, an upper support brace attached between the front backbone tube and the descending front downtube, a head tube steering member pivotally attached to the descending front downtube, two rear upright frame members attached between each rear backbone tube and each lower frame rail and a rear axle frame member pivotally attached between the two rear upright frame members to the two lower frame rails. A first air bag suspension mechanism is installed between a front portion of the front backbone tube and the head tube steering member in a horizontal plane to absorb and dampen the vibrations and shock to the front wheel of a motorcycle, while a second air bag suspension mechanism is installed between a rear portion of the front backbone tube and the rear axle frame member.
REFERENCES:
patent: 4807898 (1989-02-01), Huntly
patent: 5086866 (1992-02-01), Banjo
patent: D378996 (1997-04-01), Ysker
patent: D425453 (2000-05-01), Manescalchi
patent: 6142498 (2000-11-01), Smith
patent: 6505847 (2003-01-01), Greene
patent: 6837328 (2005-01-01), Neugebauer
patent: D510546 (2005-10-01), Doll
patent: D512345 (2005-12-01), Beich
patent: D517451 (2006-03-01), Alsop
Goose;History of Motorcycle Suspensionwww.directparts.com/static/goose/suspension.htm.
Dickson Paul N
Homburg Randal D.
Scharich Marc A
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