For use in medical trays the filtering flat material (2) has to be such that no micro-organisms can penetrate through it. In order to arrange such a filter (1) for achieving closure of a tray's partial surface including through openings which ensures sterility, a closed sealing line, which surrounds the through openings, is formed in the area of each flat partial surface having through openings, along which two tray parts to be assembled and including co-operating clamping surfaces enable clampi...

The invention relates to a cover, an insert and a floor, and a method for manufacturing a tray therefrom. The cover comprises a planar rectangular panel with a flap on each edge, a portion of each flap being connected to an adjacent flap with a gusset, each flap having a tab at the free edge thereof, wherein the floor comprising a planar rectangle which is substantially the same size as the panel, and wherein the insert comprising a planar rectangular base which is substantially the same size as...

A tray which may be set up in the field and locked into position without the use of glue or staples. A pair of end panels are provided on each end of the tray. One of these end panels extends from the bottom panel of the tray and the other extends from the upper panel of the tray. One is an exterior end panel and the other is an interior end panel. The exterior end panel has a pair of locking flaps which fold around the interior end panel and are held in place by a locking panel. The locking pan...

A tray providing better bottom strength and better stacking strength. The tray has a double-ply base panel which will not bulge to the extent a single-ply tray would. Double-ply lower end panels are attached to the double-ply base panel. These lower end panels in conjunction with the upper end panels, the side end flaps and the interior locking panels provide quintuple-ply end sections which provide better strength.

A tray includes a floor and a pair of opposed side walls, each having a cutout, one of which is larger to form the dropside. A pair of bail members are pivotably and slidably secured to opposed end walls. The bail members are supported by the end walls at a plurality of selected heights. The bail member is arranged to provide structural support to the dropside of a similar tray stacked thereon. The stiffness of the support is increased by the design of the bail member, which has a support portio...

A new, readily manufactured display tray having at least 5 sides, and preferably at least 8 sides, a blank therefor and processes for making and erecting the blank. The tray of the invention enjoys the sometime reported benefits of trays having numerous corners yet is more readily manufactured than the typical 8-sided cases disclosed in the prior art. In addition, the tray of the invention requires less corrugated board or other packaging material than the typical prior art 8-sided case.

A tray having a base defined by the upper portions of two sidewalls, a forward edge extending between the upper portions of the sidewalls and a raised back wall extending between the opposite ends of upper portions of the sidewalls. The sidewalls are the apexes of the triangles located at the forward edge of the base so that the base extends at an upward angle from the forward edge to the base of the raised back wall. A plurality of individual depressions are formed in the base and a plurality o...

Tray is engineered for receiving food, in particular on board aeroplanes, vehicles or other transport means, wherein the tray comprises a tray body, on which a first receiving surface for receiving food is formed, and a receiving part extending above the first receiving surface and spaced therefrom, on which upper side of which a second receiving surface for receiving food extending above the first receiving surface and spaced therefrom. Since the receiving surfaces are disposed on different pla...

A flat blank of generally rectangular shape with rounded corners has a U-shaped incision in each end portion forming a tongue, extending endwise at each end from the portion that is to provide a tray bottom, that is separated by the incision from an end strip forming a continuous arch joining the portions that are to provide side walls for the tray. To set up the tray each end strip is folded inwards in the middle, the tongues are bent upwards and the most closely folded end strip mid-portion is...

An improved insulated tray having both of its top and bottom surfaces configured so that either may receive food articles. In addition, the configuration is such that the trays may be stacked one upon the other in a wide variety of configurations. When so stacked, the depressions in the upper tray serve to provide a closure for the depressions in the lower tray.