Abstract: A backward-folded opening-resistant container structure includes first and second casing members combinable with each other. The first casing member has an outer side to which a foldable member that includes an insertion trough and an engaging member is connected. The second casing member includes a grip portion having a notch. A break-away unit includes a planar portion connected to the notch by means of a perforation line and a fastening portion in the form of a hollow cylindrical body having an end formed with an opening connected to the planar portion. The insertion trough and the fastening portion are combinable with each other, and the foldable member is foldable to have the engaging member inserted into the opening. When the first casing member and the second casing member are separated, the perforation line is broken and the break-away unit detaches from the second casing member.

Abstract: A tamper-resistant air-permeable container includes a cover having a bottom that is formed with a first wall having primary troughs and primary blocks and formed with a retaining engagement portion; and a box including a receiving space and having a second wall that is provided with a first step part lower than the second wall and a second step part lower than the first step part to define forming therebetween a retaining engagement groove. The second wall is formed with secondary troughs, each including a curved section, such that each of the secondary troughs has a curved configuration. When the cover is combined with the box, the retaining engagement portions of the cover are fit into and retained in the retaining engagement groove. The primary troughs and the secondary troughs form passages in communication with the receiving space.

Abstract: A tamper-resistant air-permeable container includes a cover having a bottom that is formed with a first wall having primary troughs and primary blocks and formed with a retaining engagement portion; and a box including a receiving space and having a second wall that is provided with a first step part lower than the second wall and a second step part lower than the first step part to define forming therebetween a retaining engagement groove. The second wall is formed with secondary troughs, each including a curved section, such that each of the secondary troughs has a curved configuration. When the cover is combined with the box, the retaining engagement portions of the cover are fit into and retained in the retaining engagement groove. The primary troughs and the secondary troughs form passages in communication with the receiving space.

Abstract: A tamper-resistant air-permeable container includes a cover having a bottom that is formed with a first wall having primary troughs and primary blocks and formed with a retaining engagement portion; and a box including a receiving space and having a second wall that is provided with a first step part lower than the second wall and a second step part lower than the first step part to define forming therebetween a retaining engagement groove. The second wall is formed with secondary troughs, each including a curved section, such that each of the secondary troughs has a curved configuration. When the cover is combined with the box, the retaining engagement portions of the cover are fit into and retained in the retaining engagement groove. The primary troughs and the secondary troughs form passages in communication with the receiving space.

Abstract: A tamper-evident container generally includes a tray having an opening with a step section formed around the opening and including a first protrusion section that is provided with a first coupling unit with a first perforation line formed therebetween. The first coupling unit includes a coupling trough. A cover includes a concave groove having a bottom and an outside surface engageable with the step section to close the opening. The cover includes a second protrusion section and a second coupling unit between which a second perforation line is formed and projecting beyond the first perforation line. The second coupling unit has a coupling member receivable in and engageable with the coupling trough. Tearing off the first and second perforation lines allows the first and second coupling units to detach from the tray and the cover, respectively with the second protrusion section projecting outside the tray for easy gripping.

Abstract: Disclosed is a tamper-evident container for food storage that uses a round male to female post lock on a single corner. After the cover is locked to the tray base, it requires breaking the corner tray tab to open the container. This tab tear off provides positive evidence of container opening to indicate the container has been opened or tampered with.

Abstract: The present invention is related to a multilayer container structure including a first container, at its first opening circumference having a first connecting part on which first and second securing slots are provided at upper and lower location respectively, a second container, at its second opening circumference having a second connecting part and a snap slot inside a storing room, and a lid, provided with a protrusion, a third connecting part at its periphery and a plurality of first protrusive snap latch besides the protrusion. Thereby the second connecting part of the second container can attach to the first securing slot of the first container for placing the former inside the later. The third connecting part of the lid can attach to either the second securing slot of the first container or the snap slot of the second container for placing it above the lid.