Cart coupling device
OwnerTerry Shannon Davisinventor
Life of this patent
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Abstract
A coupling device that interconnects a plurality of carts by an extendable end on an elongated member that is movable from a retracted location beneath the cart. The coupling device includes a receiver end to secure with the extendable end of an another cart, but without it interfering with the fold up feature of the cart. The elongated member and the receiver end are part of two separate units that are mounted under a cart at opposite ends of the cart.
Claims10
A device for connecting a plurality of carts to permit moving together, said device comprising:
- two units attachable firmly at opposite ends under a four wheel, loadable cart;
- an elongated member slidable in spaced apart tracks, and lockable when extended, from a retracted location in one of said two units;
- a pin extending vertically from said elongated member at its farthermost point when extended;
- a second unit of said two units having an edge facing outwardly away from said one unit of said two units;
- and
- said outwardly facing edge having two points spaced apart and sloping toward the center of said edge ending in a slot to receive a pin extending vertically from an elongated member of a like device under another cart;
- whereby said device can interconnect a plurality of carts for moving by a single prime mover, and said device will not interfere, when disconnected for storage or transporting for use at another location.
A device for connecting a plurality of four wheel carts for moving together by a single prime mover in a train like manner, said device comprising:
- two units attachable firmly at opposite ends under a four wheel cart;
- an elongated member slidable in spaced apart tracks, and lockable when extended from a retracted location in one of said two units;
- a pin extending vertically from said elongated member at its farthermost point when extended;
- said elongated member is rectangular in cross-section to resist deforming in use, and is hollow to reduce its weight;
- a second unit of said two units having an edge facing outwardly away from said one unit;
- and
- said outwardly facing edge having two points spaced apart and sloping toward the center of said edge ending in a slot to receive a pin extending vertically from an elongated member of a like device under another cart;
- whereby said device can interconnect a plurality of carts for moving by a single prime mover, and said device will not interfere, when disconnected for storage or transporting for use at another location.
Dependencies are inferred from the claim text.