초록 ▼

A tray and lid combination; the tray has sides and ends extending upwardly from the bottom at a slight angle, terminating in a flat peripheral shoulder. The lid has a flat top and downwardly and outwardly extending sides and ends that terminate in a flat peripheral shoulder that rests on the shoulde

A tray and lid combination; the tray has sides and ends extending upwardly from the bottom at a slight angle, terminating in a flat peripheral shoulder. The lid has a flat top and downwardly and outwardly extending sides and ends that terminate in a flat peripheral shoulder that rests on the shoulder of the tray. Each corner of the lid has an integral projection formed on it that fits into the corner of the tray and functions as a lock to prevent the lid from coming off of the tray.

대표청구항 ▼

A tray and cover combination comprising, a tray having ends (12,13), sides (14,15) and bottom (16), said bottom (16) integrally connected to said sides and said ends, said sides and said ends extending upwardly and outwardly from said bottom and terminating in a tray bead (36) forming a flat surface

A tray and cover combination comprising, a tray having ends (12,13), sides (14,15) and bottom (16), said bottom (16) integrally connected to said sides and said ends, said sides and said ends extending upwardly and outwardly from said bottom and terminating in a tray bead (36) forming a flat surface, said ends (12,13) and said sides (14,15) joining each other at rounded first corners (33) on a first radius (31), said tray bead (36) being rounded at said first corner (33) on a second radius (32), said cover having ends (17,18) and sides (19,20) and a top (21) integrally connected to said sides and ends, said ends (17,18) and sides (19,20) of said cover joining each other at second rounded corners (34) of a third radius (35), a cover bead (37), said ends of said sides of said cover (17,18,19 and 20) terminating at their upper edges in said cover bead (37), said cover bead (37) having flat surfaces resting on said tray bead flat surfaces (36) and having corners connecting said tray bead (36) on a fourth radius (38) equal to said second radius (32), an Integral projection (24,25,26, and 27) on said cover at each corner extending downwardly, said projections (24,25,26 and 27) having inner sides forming a continuation of said second rounded corner (34), said projections having outside surfaces curving downwardly and inwardly from said tray bead corners on a curved surface conforming to said first rounded corner (33) of said tray, the lower surface of said projections comprising, a convex surface (39) integrally attached to said outer curved surface of said projections and to said inner curved surface of said projections, whereby a continuous surface is provided which is adapted to avoid the deposit of foreign material thereon.