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US 5,806,878 AGranted
Collapsible wheelbarrow/stretcher
AssigneeDouble D Development Company L.L.C.
InventorsDavid E. Mroczka, Edward J. Mroczka
Life of this patent
Estimating the term…
Abstract
A collapsible wheelbarrow has a wheel assembly. The wheel assembly has a collapsible rim and a tire mounted to the rim. The tire comprises a flexible woven fabric and an inner tube for expanding the tire. The wheel assembly rotatably mounts to an axle. A plurality of spaced apart handles extend from the axle and cargo are mounted between the handles for supporting cargo on the wheelbarrow.
Claims16
A collapsible wheelbarrow comprising:
- a collapsible wheel assembly comprising a collapsible rim transformable between collapsed and operative configurations having a rim center portion and detatchable spokes each having a yoke and extending radially from said rim center portion, and tire means mounted to said rim, said tire means comprising a flexible woven fabric cover and tube means for expanding said cover, said tire means mounted to said yokes;
- an axle, said wheel assembly rotatably mounted to said axle;
- a plurality of spaced apart handle means adapted for human grasping mounted to said axle, and extending from said axle;
- and
- cargo support means mounted to said handle means for supporting cargo on said wheelbarrow.
2 more elements
A collapsible wheelbarrow comprising:
- a collapsible wheel assembly having a collapsible rim transformable between collapsed and operative configurations comprising a pair of circular mating rim halves and means for engaging said rim halves to define an annular rim channel for receiving a tire assembly, and a tire assembly comprising a generally toroid-shaped flexible fabric cover generally defining an internal volume and tube means in said internal volume to expand said cover, said tire assembly positioned in said annular rim channel, said cover further defining an interior circumference and a flange of said flexible fabric extending from said cover at said interior circumference for positioning between said rim halves when said rim halves are engaged;
- an axle, said wheel rotatably mounted to said axle;
- handle means mounted to said axle defining a pair of handles;
- and
- cargo means mounted to said handles for supporting said cargo on said wheelbarrow.
2 more elements
A collapsible wheelbarrow comprising:
- a collapsible wheel assembly having a collapsible rim assembly transformable between collapsed and operative configurations comprising a rim center portion defining an annular groove and detachable spokes having a first end engagable in said annular groove and a second end defining a tire support yoke, and a tire assembly mounted to said yokes comprising a generally toroid-type shaped flexible fabric cover generally defining an internal volume and tube means in said internal volume for expanding said cover;
- an axle, said wheel rotatably mounted to said axle;
- handle means mounted to said axle defining a pair of handles;
- and
- cargo means mounted to said handles for supporting cargo on said wheelbarrow.
2 more elements
Dependencies are inferred from the claim text.