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US 4,533,150 AGranted
Curved-body maneuverable snow board
OwnerCarl D. Hardyinventor
Life of this patent
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OwnerCarl D. Hardyinventor
Estimating the term…
Approximately vertical side walls are equally curved inwardly to form a waistlike narrow portion in the elongated body. A substantially flat bottom contact surface curves convexly downward to form a fulcrum at the low point. The fulcrum aligns with the centerlines of both side curves. A major portion of each side curve intersects a major portion of the bottom fulcrum curve to form a curved turning edge, which contacts the snow for its entire length when the snow board is tilted back over the fulcrum and to one side for steering. Protruding above a top flat ride-on surface are a rear foot stop and a double front foot stop for wedging the foot therebetween. Pivotally secured to an axle through the front foot stop a U-shaped handle pivots up for a stand-up balance and steering hand lever and down below the ride-on surface for storage, for a sit-down hand grip or for no-handle stand-up riding. Additional side grips, handle hold-down and safety release binding are optional.
A highly maneuverable rigid snow board comprising an elongated body, of substantially greater depth in midsection that at each end and substantially flat on the top surface, substantially vertical longitudinal side surfaces provided with equal opposing inwardly concave curves in the side surfaces forming a "waistlike" narrowed portion between wider front and rear sections in plan view, and a substantially arched bottom comprising a longitudinal downwardly convex curve forming a fulcrum point separating a substantially flat bottom sliding contact area from a smaller upturned rear backshift area, and further comprising, at a front end a small upturned tip portion, wherein the centerlines of both side concave curves and the centerline of the bottom fulcrum with each side curve forms a long continuous curved bottom turning edge, the major central portion of which curved bottom turning edge rests flush with a flat snow surface to steer the snow board approximately in the direction of edge curvature when the snow board is pivoted onto the fulcrum and tilted to either side onto the curved bottom edge.
A highly maneuverable rigid snow board comprising an elongated body of substantially greater depth in midsection than at each end, substantially vertical side surfaces with equal opposing inwardly concave curves in the side surfaces forming a "waistlike" narrowed portion between wider front and rear sections in plan view, and a substantially arched bottom comprising a longitudinal downwardly convex curve forming a fulcrum point separating a substantially flat bottom sliding contact area from a smaller upturned rear backshift area, and further comprising at a front end a small upturned tip portion, wherein the centerlines of both side concave curves and the centerline of the bottom fulcrum curve are coincident so that the intersection of the bottom fulcrum curve with each side curve forms a long continuous curved bottom turning edge, the major central portion of which curved bottom turning edge rests flush with a flat snow surface to steer the snow board approximately in the direction of turning edge curvature when the snow board is pivoted onto the fulcrum and tilted to either side onto the curved turning edge, wherein at least one straight surface disconformity is provided in the bottom surface along a longitudinal axis, and further comprising a substantially flat top ride-on surface provided with upwardly protruding front and rear foot stops.
A highly maneuverable snow board comprising an elongated body having substantially vertical longitudinal side surfaces provided with equal opposing inwardly concave curves in the side surfaces forming a "waistlike" narrowed portion in plan view, and a substantially flat bottom sliding contact area, provided at one end with a small upturned portion and along the length of the bottom provided with a longitudinal downwardly convex fulcrum curve, wherein the centerlines of both side concave curves and the centerline of the bottom fulcrum curve are coincident so that the intersection of the bottom fulcrum curve with each side curve forms a curved bottom turning edge, the major central portion of which curved bottom turning edge rests flush with a flat snow surface to steer the snow board approximately in the direction of edge curvature when the snow board is pivoted onto the fulcrum and tilted to either side onto the curved bottom edge, and further comprising a longitudinally pivoting handle having two spaced rigid arms connected by a gripping portion at one end and pivotally connected to the snow board at the opposite end, and still further comprising a top surface surrounded by a narrow lower ridge upon which the handle may rest when pivoted down to the top surface below the foot level of the user, permitting standing use of the snow board both with and without the handle.
A highly maneuverable snow board comprising an elongated body having substantially vertical side surfaces with equal opposing inwardly concave curves in the side surfaces forming a "waistlike" narrowed portion in plan view, and a substantially flat bottom sliding contact area, provided at one end with a small upturned portion, and along the length of the bottom, provided with a longitudinal downwardly convex fulcrum curve, wherein the centerlines of both side concave curves and the centerline of the bottom fulcrum curve are coincident to that the intersection of the bottom fulcrum curve with each side curve forms a curved bottom turning edge, the major central portion of which curved bottom turning edge rests flush with a flat snow surface to steer the snow board approximately on the direction of turning edge curvature when the snow board is pivoted onto the fulcrum and tilted to either side onto the curved turning edge, wherein at least one straight surface disconformity is provided in the bottom surface along a longitudinal axis, and further comprising a substantially flat top ride-on surface provided with upwardly protruding front and rear foot stops, and wherein the handle is provided with two arms which straddle the ride-on surface in the lowered position and further provided with a lateral extension of each end of the rear foot stop which extension overhangs a portion of an arm of the handle in the lowered position to secure the handle removably in the lowered position.
Dependencies are inferred from the claim text.