Land vehicles – Wheeled – Extensible
Reexamination Certificate
2001-07-18
2003-07-29
Johnson, Brian L. (Department: 3618)
Land vehicles
Wheeled
Extensible
C280S639000, C280S047131, C280S047260, C280SDIG003
Reexamination Certificate
active
06598898
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to hand drawn carts especially of the type that fold flat for storage, and more particularly to such a cart providing improved features and capabilities.
2. Description of Related Art
Stoll, U.S. D155,640 describes a collapsible utility card design.
Forish, U.S. D344,640 describes a beach cart design.
Cooper et al., U.S. Pat. No. 1,769,418 describes a package carrier consisting of a foldable receptacle, a frame comprising foldable side members, upper cross members secured in said side members for supporting the receptacle; lower cross members slidably secured in said side members for supporting the lower edges of the receptacle; and wheels rotatably mounted on the lower ends of the side members.
Giordano, U.S. Pat. No. 2,421,751 describes a collapsing shopping device, consisting of a pair of folding side frames, each frame consisting of side bars pivotally connected to each other midway of their ends, one side bar of each frame having a ground wheel and the other side bar bearing engagement with the ground and provided with a handle on its upper end folding and a shopping receptacle supported on and between the two side frames.
David et al., U.S. Pat. No. 2,472,407 describes a folding cart, a main elongated U-shaped back frame having a handle, wheels attached to the lower end portion of said frame, a seat frame of U-shaped form having one end portion pivotally mounted between intermediate portions of the frame members of the first named frame, a third U-shaped leg frame, the arms thereof being rigid and pivotally connected to the free ends of the arms of the second named seat frame, connecting links between and connected with the first and the third one end to the first named frame and at the opposite end to a rod carried by interconnected portions of the second and third named frames.
Hill, Sr., et al., U.S. Pat. No. 3,388,920 describes A shopping cart comprising a frame including a substantially erect main frame member having a cart handle at its upper end, laterally spaced main wheels rotatably mounted at the lower end of said main frame member for movement of the cart along a supporting surface, auxiliary frame means articulately connected to said main frame member for movement relative thereto between a rested position substantially coplanar with said main frame member and an extended position where said auxiliary frame means projects forwardly from said main frame member, and auxiliary wheel means rotatably mounted on said auxiliary frame means and being adapted, in said extended position of the latter, to engage the supporting surface along which the cart is movable at locations spaced forwardly from said main wheels; and a carrier for articles including a main rigid wall articulately connected to said frame for movement between a substantially vertical position coplanar with said main frame member when said auxiliary frame means is in said nested position and a substantially horizontal position when said auxiliary frame means is in said extended position, an end wall extending from the end of said main wall which is lowermost in said vertical position thereof thereby to form the bottom of the carrier in said vertical position of the main wall and the front of the carrier in said horizontal position of the main wall, side walls extending from the opposite sides of said main wall along the latter and being each joined, at one end, to said end wall, and a foldable wall pivotally mounted, at one end, between the other ends of said side walls to swing about an axis spaced from said main wall and being selectively disposable to close the back, of said carrier when said main wall is in said horizontal position and to close the front of said carrier when said main wail is in said vertical position.
Spielman, U.S. Pat. No. 3,479,052 describes a hand-pulled cart for transporting golf clubs along a golf course, the combination: of a pulling frame member, said pulling frame member embodying a pair of wheel elements, said wheel elements being spaced apart one from the other on a common horizontal axis of rotation, axle elements for each of the said wheel elements, a pair of side frame elements adjacent to and respective one to each of the said wheel elements and attached to the said axle elements, said side frame elements thereby being turnable with the said axle elements relative to the said wheel elements to a vertical position, said side frame elements then each extending perpendicularly upward from the said axle elements in a plane aligning with the said common axis for the said wheel elements, and a cross-element joining the said side frame elements one with the other substantially at the upper ends thereof; a golf club carrying rack member, said carrying rack member embodying provisions for receiving golf clubs in a substantially vertical array, said carrying rack member embodying a pivotal attachment toward the upper end thereof on an axis substantially parallel with the said common axis of rotation for the said wheel elements, said pivotal attachment joining the said carrying rack member to the said pulling frame member at a location downward from the said cross-element thereof and upward from the said wheel elements thereof, said carrying rack member extending from the said pivotal attachment downward along the said plane of the said pulling frame member to approximately the level of the lower reaches of the said wheel elements, said pivotal attachment permitting articulation of the said carrying rack member away from the said pulling frame member in the' direction opposite from the direction in which the cart is intended to be pulled; a knuckling linkage, said knuckling linkage being located at a level above the upper reaches of the said wheel elements and below the said pivotal attachment for the said carrying rack member, said knuckling linkage being pivotally attached on a lateral axis at a first end thereof to the said pulling frame member and pivotally attached on a lateral axis at a second end thereof to the said carrying rack member, said knuckling linkage embodying an intermediate pivot whereabout the same may fold downward, said knuckling linkage extending generally downward from the said first and second ends thereof when the said carrying rack member is articulated adjacent to the said pulling frame member, said knuckling linkage extending generally outstretched horizontally to limit articulation of the said carrying rack member when the same is articulated away from the said pulling frame member, said intermediate pivot of the said knuckling linkage being limited in upward movement to not reach alignment with the said pivotal attachments at the said first and second ends of the said knuckling linkage, and a seat element mounted to the said knuckling linkage on the said first end thereof, said seat element extending laterally between the said side frame elements of the said pulling frame member, said seat element lying in a substantially horizontal plane when the said carrying rack member is articulated to the maximum away from the said pulling frame member and when the said wheel elements and the lower end of the said carrying rack member are at rest on a horizontal surface.
Bell, U.S. Pat. No. 4,765,644 describes a folding cart designed to function as a supporting walker or a stackable grocery cart. The frame consists of two pivoted parts, the shorter pivoted at its upper end to points near the center of the longer, and the longer extending thereabove to form a handle. A foldable strut joins the pivoted parts below their junction. A fabric receptacle is foldably supported from the frame generally above the junction of the two pivoted parts. Suitable wheels or pivoted castors are mounted adjacent the lower ends of the two pivoted parts.
Carlile, U.S. Pat. No. 4,865,346 describes a hand-propelled cart assembly for use in support of activities such as picnicking or beach-going including a separable wheeled frame having an upright section comprising upper and lower portio
Aports Training Devices, LLC
Gene Scott-Patent Law & Venture Group
Johnson Brian L.
Restifo Jeff
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