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US 2014/0217690 A1Published application
Multi-tier utility cart
AssigneeMetro Industries, Inc.
InventorsKyle Schumaker, Wilhelm Heinrich, Robert Kaluzavich
Life of this patent
Estimating the term…
Abstract
A utility cart has four corner posts arranged in rectangular pattern and at least one lower shelf including a recess in the push side edge and a top shelf that, instead of the recess, includes a handle. The other three sides of each of the shelves are substantially the same size and extend beyond the corner posts. The bottom of each of the shelves may include a wagon wheel structure in each corner which secures and supports the corner posts of the cart.
Claims20
A cart comprising:
- four corner posts supporting a plurality of shelves that extend substantially perpendicular thereto;
- a plurality of casters supporting the cart;
- an upper shelf, of the plurality of shelves, supported by the four corner posts and comprising four edges, including two side edges, a leading edge and a trailing edge, each of which is positioned external to a line extending between center axes of a corresponding pair of the four corner posts;
- and
- a lower shelf, of the plurality of shelves, supported by the four corner posts and comprising four edges, including two side edges, a leading edge, and a trailing edge, wherein (i) each of the side edges and the leading edge of the lower shelf is positioned external to a line extending between the center axes of a corresponding pair of the four corner posts, and (ii) the trailing edge defines a recess positioned internal to a line extending between center axes of a corresponding pair of the four corner posts.
2 more elements
A mobile cart comprising:
- four corner posts extending through and supporting a plurality of shelves, each of the plurality of shelves extending substantially perpendicular to the center axes of the corner posts;
- a plurality of casters supporting the cart;
- an upper shelf, of the plurality of shelves, supported by the four corner posts and comprising four edges, including two side edges, a leading edge and a trailing edge, wherein a concave tray is formed in a top surface of the upper shelf, the tray being defined by a plurality of walls including a leading wall positioned on a side of the tray closest to the center of the upper shelf;
- and
- a lower shelf, of the plurality of shelves, supported by the four corner posts and comprising four edges, including two side edges, a leading edge, and a trailing edge, wherein (i) each of the side edges and the leading edge of the lower shelf is positioned external to a line extending between the center axes of a corresponding pair of the four corner posts, (ii) the trailing edge defines a recess positioned internal to a line extending between center axes of a corresponding pair of the four corner posts, and (iii) in directions perpendicular to the four corner posts, the trailing edge defining the recess and the leading wall of the tray are in the same relative positions.
2 more elements
A post support structure extending below a shelf surface to receive a post comprising:
- a substantially cylindrical interior protrusion extending from a bottom of the shelf surface, the interior of which defines a hole for receiving a post;
- an exterior protrusion extending from the bottom of the shelf surface which is at least partially concentric with the interior protrusion and surrounds the interior protrusion;
- and
- a plurality of radial ribs, which are formed on the bottom of the shelf surface, extending radially out from the interior protrusion and connecting the interior protrusion and the exterior protrusion.
1 more element
Dependencies are inferred from the claim text.