Land vehicles – Wheeled and runner – Retracting wheel or runner
Reexamination Certificate
2007-08-23
2008-09-02
Ellis, Christopher (Department: 3618)
Land vehicles
Wheeled and runner
Retracting wheel or runner
C280S010000, C280S086500, C280S638000, C280S008000, C280S007120, C280S043220, C280S043240, C280S024000, C280S043140
Reexamination Certificate
active
07419167
ABSTRACT:
A sled device for permitting transportation of a person and cargo over a variety of surfaces includes a sled including a bottom wall and a perimeter wall that extends upwardly from the bottom wall to define a receiving space of the sled to receive the person and cargo. The bottom wall is slidable along a soft support surface. A front wheel assembly is rotatably coupled to the sled and is rotatable between a deployed position and a stowed position. The front wheel assembly engages and rolls along a hard support surface when the front wheel assembly is in the deployed position. A plurality of rear wheel assemblies is pivotally coupled to the sled and each is pivotable between a lowered position and a raised position. The rear wheel assemblies engage and roll along the hard support surface when the rear wheel assemblies are in the lowered position.
REFERENCES:
patent: 2783055 (1957-02-01), Michaud
patent: 3730542 (1973-05-01), Chadwick
patent: 3822069 (1974-07-01), Hoff
patent: 4159119 (1979-06-01), Smith
patent: 4291891 (1981-09-01), Blanchette
patent: 4437957 (1984-03-01), Freeman
patent: D302958 (1989-08-01), Shippee et al.
patent: 5413361 (1995-05-01), Mosher
patent: 6042122 (2000-03-01), Mohr
Collado Cynthia F
Ellis Christopher
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