Stacking wire for produce trays
AssigneeBetter Wire Products, Inc.
InventorRobert C. Sanderson
Life of this patent
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AssigneeBetter Wire Products, Inc.
InventorRobert C. Sanderson
Estimating the term…
A stacking wire for produce trays is made from a length of wire, preferably a uniform round high tensile strength steel wire of at least 14 gauge, bent into an elongated open U with both sides thereof diverging downwardly to open ends at which they are bent outwardly to form further outwardly diverging legs which terminate in hook-shaped feet, with the hook openings facing outwardly and with the ends of such hooks bending upwardly. A stacking wire of the type described, when installed in a produce tray by being inserted through a slotted bottom portion and then through a top opening in such tray, will be compressed by such tray slots so that the sides thereof are essentially parallel, and the hook shaped feet of the wire will be held in place pressing against end walls of the bottom slot of the produce tray and with the ends of the wire digging into the tray bottom to help to maintain the wire in position even when additional tray(s) are stacked on the supporting tray and the stacking wire. The legs diverging from the wire sides are inclined at least 20.degree. from continuations of such sides, and preferably 24.degree. or more, the legs include extensions connecting to the feet, which extensions are substantially parallel to the sides, the hook portions of the feet include upper ledge sections long enough and parallel enough to the tray bottom to prevent accidental release of the stacking wire from the produce tray bottom slots during stacking operations, and the sides of the stacking wire are sprung apart before installation, whereby the closed end portions of the hooks press against the bottom slot end walls even when such walls are farther apart than upper slot end walls.
A stacking wire for stackable produce trays and the like which comprises a unitary length of wire bent so as to form an elongated opened "U" shape with a pair of sides thereof joined together at an upper end and diverging from said end to open ends, at which both sides are bent outwardly to form further outwardly diverging legs which are at an angle of at least 20.degree. with respect to continuations of the wire sides and which terminate in hook-shaped feet, with the hook openings facing outwardly and with the ends of such hooks bent upwardly, so that when the wire is installed in a produce tray, by being sequentially inserted up through a slotted bottom opening and a slotted top opening in such tray, it will be compressed so that the sides thereof are essentially parallel and so that the hook-shaped feet of the wire are held in place with respect to the bottom slot of the produce tray and have the ends thereof digging into such tray bottom.
A berry or cherry tomato produce tray having installed therein a pair of stacking wires to facilitate stacking of a plurality of such trays to heights of from 2 to 16 trays, or more, which tray comprises a substantially flat bottom and low, substantially vertical side and end wall portions, with aligned slots in bottom and top portions of the end walls extending in the directions of such walls, and with the slots in the bottom portions being longer than those in the top portions thereof, with each of the stacking wires being of a unitary length of wire bent so as to form an elongated "U" shape with a pair of sides thereof joined together at an upper end and extending downwardly and pressing outwardly against end walls of the upper slot and, at a location below the upper slot and above the lower slot of the tray, extending downwardly and outwardly in the form of diverging legs which are at an angle of at least 20.degree. with respect to continuations of the wire sides, and having extensions thereof which terminate in hook-shaped feet, having hook openings facing outwardly, with ledges thereof fitting about portions of the tray bottoms at the bottom slot ends, with the hook-shaped feet being pressed against the slot ends by the other parts of the wire due at least in part to the angle of the outwardly diverging legs thereof being greater than 20.degree., which holds the hook ledges against the tray bottom and helps to prevent dislodging of the wire when it is subjected to downward and/or sideward force on the upper end thereof, and which hooks of the feet have ends thereof bent upwardly so that they dig into the bottom of the tray bottom when the tray is pressed downwardly onto such ends while the tray and such ends are supported.
Dependencies are inferred from the claim text.