摘要:
A container or can having a body and end portion which include plastic free ends and which are joined and sealed by cooperatively curling the juxtaposed ends. The body portion has an opening surrounded by a free end suitable for curling. The container end portion has a generally flat or dish shaped central lid portion with a peripheral skirt having a free end adaptable to the container body free end and suitable for curling. The container body and end portions are joined by juxtaposing their free ends so that they form a double wall followed by curling with a curling tool to intimately engage the ends and concurrently curve the perimeters thereof to one another in a tightly curled configuration.
摘要:
The prerequisites for the injection moulding from thermoplastic material of container lids with a tear-up opening arrangement which is to function well on opening as well as on reclosing are improved through the use of a modified thermoplastic containing inert filler in a quantity of 10-15% of the weight of the mixture. Such a modified thermoplastic is manufactured by heating a thermoplastic, known in itself, e.g. polyethylene, to melting temperature with simultaneous admixture of the filler. The mixture is mechanically processed for a good distribution of the filler in the melted plastic mass which thereafter is cooled to form the modified thermoplastics.
摘要:
A paper container filling a liquid content which comprises an upper air gap formed therein for sealing solely carbon dioxide or nitrogen gas and carbon dioxide. Thus, a recess is produced on the paper container by utilizing a small pressure reduction in the container generated as a result of carbon dioxide dissolved in the liquid content, and the recess is used as a criterion of deciding the presence of gas substitution, presence of pinhole of the container and the propriety of sealing of the container only by the recess. This container can be fully inspected by the naked eye. Further, a method of filling gas and apparatus for filling the gas in a composite paper container including aluminum foil or polyethylene by eliminating the abovementioned disadvantages and performing gas substitution merely by adding a simple unit on a filling machine, thereby holding taste, odor and nutrient components of the container contents for 4 or longer months.
摘要:
A package wrap for decoratively covering a container having side walls defining an interior space for carrying a product therein, includes a flexible thin sheet of polymeric material adapted to be shrink-wrapped onto the exterior of the container. An illuminating or a sound producing device is positioned between the flexible thin sheet of polymeric material and the exterior of the container so that when the flexible sheet of polymeric material is shrink-wrapped onto the container, the illuminating device or the sound device will be held securely in place. The illuminating device is adapted to be illuminated upon activation by a pressure, motion, or acoustically sensitive switch. The sound device is adapted to produce an audible signal upon activation by a pressure or motion sensitive switch. When the illuminating device is activated, illumination therefrom will be visible through the flexible thin sheet of polymeric material to enhance and highlight a printed pattern on the exterior of the package wrap.
摘要:
A container or can having a body and end portion which include plastic free ends and which are joined and sealed by cooperatively curling the juxtaposed ends. The body portion has an opening surrounded by a free end suitable for curling. The container end portion has a generally flat or dish shaped central lid portion with a peripheral skirt having a free end adaptable to the container body free end and suitable for curling. The container body and end portions are joined by juxtaposing their free ends so that they form a double wall followed by curling with a curling tool to intimately engage the ends and concurrently curve the perimeters thereof to one another in a tightly curled configuration.
摘要:
Vacuum containers of synthetic polymeric resins include a wall portion deformable under vacuum containing conditions, to give a visual indication of the vacuum integrity. The containers by virtue of the deformable portion resist paneling.
摘要:
Pressure relief detecting/alert apparatus for detecting the activation of pressure relief devices associated with fluid storage is disclosed comprising a cover adapted to move in response to a release of stored fluid, a tube assembly for containing a control fluid under pressure and capable of rupture upon movement of the cover, and means for detecting a decrease in control fluid pressure.