Stackable load bearing tray

Details Stackable load bearing tray Stackable load bearing tray

1994-04-20

1994-12-13

Moy, Joseph Man-Fu

Special receptacle or package

Structural features for vertical stacking, i.e., similar...

Having specified means for lateral stacking

206505, 206509, B65D 2104

Patent

active

053722574

ABSTRACT:
The disclosure herein describes a stackable tray which is formed of a body of rigid plastic material with a bottom wall integrally formed with opposite side walls and front and rear walls; each side wall is provided with an upper edge flange which is engageable in a recessed area defined in the lower edge of a superposed similarly constructed tray. The location of the recessed area with respect to the upper edge flange is such as to force outwardly the side walls during stacking engagement thus causing internal stresses in the bottom wall which counteract the sagging which occurs when loads are supported on the bottom wall.

REFERENCES:
patent: 4760921 (1988-08-01), Licari
patent: 4911303 (1990-03-01), Andersson
patent: 4998967 (1991-03-01), Box
patent: 5190156 (1993-03-01), Conaway et al.
patent: 5287966 (1994-02-01), Stahl

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