A can comprises a metal can body and a metal lid. The can body has an edge defining a top opening into the body, and an inwardly directed bead (22) extending around the body adjacent to the top opening. The bead defines an upwardly facing sealing surface (25) and an inwardly facing surface (26). The lid has a centre panel (30), a wall (32) surrounding the centre panel, and an outwardly directed curl (34) at the top of the wall. The curl defines a peripherally extending channel (35) having an opening therein, and sealing compound (36) is located within the channel and projects through the opening. The can body and the lid are dimensioned to allow the lid to be press-fitted into the can body, so that an outwardly facing surface of the wall opposes the inwardly facing sealing surface of the bead, whilst the sealing compound is in sealing engagement with the upwardly facing sealing surface of the bead.

In an embodiment, the invention comprises a container comprising: a base; at least one sidewall extending upwardly from the base and terminating in a top edge, wherein the at least one sidewall is paper-based; a removable flexible membrane adhered to the top edge, wherein the membrane comprises a one-way valve; a liner ply at least partially adhered to an interior surface of the sidewall, wherein the liner ply is configured to at least partially release from the sidewall upon a pressure differential between the pressure within the container and the external pressure.

Plastic container comprises a container body having a bottom portion, a sidewall portion and an upper portion, with a chamber defined therein. The bottom portion includes a support surface and a variable dynamic base portion. The sidewall portion includes a lower circumferential groove ring, an upper circumferential groove ring, and a pair of longitudinal grooves extending longitudinally therebetween to define a front sidewall segment and a rear sidewall segment. The rear sidewall segment comprises a waist groove extending circumferentially between the pair of longitudinal grooves to define an upper rear sidewall segment and a lower rear sidewall segment, wherein one of the upper rear sidewall segment or the lower rear sidewall segment includes two vacuum panels with a rigid longitudinal support therebetween.

A plastic, hot-fillable container is provided. The container comprises a blow molded body including a neck and a base having a center portion and a plurality of spaced apart radial segments. At least a portion of each segment is tapered from an outer side to an inner side thereof. Container systems and methods of manufacturing containers are disclosed.

According to embodiments, a pressure relief mechanism comprises a case with an installation hole formed therein, and a pressure relief valve. The pressure relief valve comprises an insertion portion which comprising a vent path formed in an axial portion of the insertion portion and a slit formed in a peripheral wall portion of the insertion portion so as to communicate with the vent path, a pedestal portion provided at an outer end of the insertion portion, a locking portion provided at an inner end of the insertion portion and locked on an inner edge of the installation hole, and a ring-like seal member interposed between around the installation hole and the pedestal portion, the seal portion comprising an elastic member.

A resin made container includes a spout portion to/from which a cap can be attached/detached, a shoulder portion continuous with the spout portion, a body portion continuous with the shoulder portion and a bottom portion continuous with the body portion and disposed at a lowermost part. A decompression absorption portion provided in form of a recess in the body portion includes a bulging area protruding to the outer side of the container.

A packaged filtration mask comprising a filtration mask packaged in a container in a vacuum or a partial vacuum, wherein the packaged filtration mask comprises an indicator configured to indicate the presence of a vacuum or a partial vacuum in the container, or configured to indicate the lack of a vacuum or a partial vacuum in the container.

A pouch container (1) for a food product, a filled container, and a method of filling are described. The container (1) comprises a sheet containment material configured surroundingly and sealingly to define a food containment volume, at least one closure seam (7) provided within the volume between paired opposing surfaces of the said sheet containment material to divide the containment volume into two food compartments (8,9) suitable to contain food product in use, wherein the said closure seam (7) has a pressure sensitive apertured portion (14) adapted to be closed at ambient pressure but to open when an internal pressure differential between the compartments reaches a predetermined point.

A delamination container includes a bottle-shaped outer layer body including a mouth, a barrel and a bottom and an inner layer body releasably laminated on an inner surface of the outer layer body, the mouth being provided with an ambient air introduction hole passing through the outer layer body, in which a lower portion of the mouth is provided with a neck ring which has a notch circumferentially outside of at least a portion immediately below the ambient air introduction hole; and the notch is provided within a range of 60° on both sides of a radial reference line passing through an axial center of the ambient air introduction hole and radially extending, in a planar view of the container.

A packaged filtration mask can include a filtration mask packaged in a container in a vacuum or a partial vacuum. The container can be a tearable container, at least a portion of which can include a laminate of a first part and a second part. A resistance to tearing of the second part can be different than a resistance to tearing of the first part.