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US 7,168,715 B1Granted
Collapsible cart
OwnerNeil Friedmaninventor
Life of this patent
Estimating the term…
Abstract
A collapsible cart for transporting multiple items having a horizontal platform with wheels for maneuvering, and a plurality of detachable baskets mounted on basket supporting assemblies. The basket supporting assemblies are pivotally mounted so as to be capable of independent deployment and stowing to facilitate loading and unloading in turn.
Claims12
A collapsible cart for transporting multiple items comprising:
- a platform, a rack, a plurality of basket supporting assemblies and a plurality of baskets;
- said platform being a horizontally disposed rigid planar structure having a set of rotatably mounted wheels attached thereto;
- said rack being mounted on said platform in generally perpendicular relation and having attachment means for attaching said basket supporting assemblies to said rack, in spaced apart locations;
- said basket supporting assemblies being operable for alternately stowing and deploying said baskets;
- said basket supporting assemblies and said baskets having cooperative means for selective release and attachment of said baskets to said basket supporting assemblies;
- wherein said platform includes a generally rectangular shape having a front portion and a rear portion;
- wherein said rack includes a pair of rigid members mounted on the rear portion of said platform, in spaced apart relation and extending upward in generally parallel relation with each other;
- wherein each of said basket supporting assemblies comprises:
- a pair of rigid upper support arms and a pair of rigid lower support arms, said pair of upper support arms being aligned in spaced apart parallel relation defining an inside space therebetween;
- each of said upper support arms and each of said lower support arms having a proximal end and a distal end;
- each of said upper support arms having a longitudinally extending slot near the distal end and a one of said lower support arms rotatably and slideably attached to each of said upper support arms, by a pin attached near the distal end of said lower support arm and disposed within said slot;
- an upper support arm rod connecting said upper support arms, spanning said inside space, passing through a hole provided in each of the proximal ends of the pair of upper support arms, and continuing a distance to form a pair of upper support arm pivots adjacent to the outer aspect of each of said upper support arms;
- and
- a lower support arm rod connecting the proximal ends of the lower support arms in the same manner and forming a pair of lower support arm pivots adjacent to the outer aspect of each of said lower support arms.
11 more elements
A collapsible cart for transporting multiple items, comprising:
- a platform, a rack, a plurality of basket supporting assemblies and a plurality of baskets;
- said platform being a horizontally disposed rigid planar structure having a set of rotatably mounted wheels attached thereto;
- said rack being mounted on said platform in generally perpendicular relation and having attachment means for attaching said basket supporting assemblies to said rack, in spaced apart locations;
- said basket supporting assemblies being operable for alternately stowing and deploying said baskets;
- said basket supporting assemblies and said baskets having cooperative means for selective release and attachment of said baskets to said basket supporting assemblies;
- electronic means for alternately stowing and deploying said baskets, said electronic means including:
- a battery pack;
- a motorized apparatus;
- a switch;
- and
- wiring means connecting said battery pack, said switch and said motorized apparatus for selectively energizing said motorized apparatus to stow and deploy said baskets.
8 more elements
Dependencies are inferred from the claim text.