Abstract: The cooking pressure setting valve (1) for a pressure cooker (2, 3) comprises a setting knob (6) housed in the radial handle of the cooker lid (3), an outer casing (5) covered by the setting knob (6), a central valve body (10) provided with a cap disc (19) for sealing with the setting knob, a valve seat (9) an a valve member (8) with a axial central hole in communication with a diaphragm (18), a pressure regulating spring (11), an axial pressure indication stem (15) pushed by the diaphragm and guided by cap disc, and a pivoting spherical shell (16) jointed to the axial stem and visible from the outside of the setting knob.

Abstract: 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.

Abstract: A container includes a container body, a cap member, a disk member and an evacuating unit. The cap member is mounted on a top open end of the container body and is rotatable about a vertical axis. The disk member is provided beneath and inside the cap member to sealingly close the top open end. The disk member has a downward hollow mounting portion in fluid communication with the top open end. The evacuating unit is operable by the cap member for evacuating air from the container body, and is coupled with the disk member. The evacuating unit has a piston mounted on the downward hollow mounting portion. The piston is movable upward and downward in the downward hollow mounting portion via rotation of the cap member so as to suck out air from the container body.

Abstract: A bottle includes a cap secured on top and having a pipe extended upward and communicating with the interior of the bottle. A pump device is disposed on the cap for vacuuming the bottle. A bellows member is engaged on the pipe and includes a lower end secured to the cap and an enclosed upper end. A cover is engaged on the cap and includes an aperture for allowing the enclosed upper end of the bellows member to move upward beyond the cover. The enclosed upper end of the bellows member may be moved downward for indicating a vacuum status of the bottle when the bottle is vacuumed by the pump device.

Abstract: A fuel tank assembly is provided. The fuel tank assembly includes a plastic fuel tank having a wall defining an outer surface and an interior volume for storing fuel therein. A portion of the fuel tank wall further defines a generally cylindrical opening therethrough. The fuel tank assembly also includes an instrument having a generally cylindrical piece extending through the opening in the fuel tank wall such that the instrument communicates with the interior volume of the fuel tank. A retainer assembly is attached to the outer surface of the fuel tank wall for releasably securing the instrument to the fuel tank. The retainer assembly includes a plastic ring-like member having a generally cylindrical inner wall disposed around the generally cylindrical piece of the instrument, the inner wall defining a circumferentially extending sealing surface. The retainer assembly also includes a reinforcing member carried within the ring-like member adjacent to and generally concentric with the sealing surface.

Abstract: The invention provides a vent cap for automatically discharging a gas container such as a propane cylinder. The vent cap includes threads for securing the vent cap to the neck of the gas container. The vent cap further includes an indicator which has a pin and a button. When the button is manually depressed, the pin engages the valve stem of the check valve which seals the gas container, discharging gas from the container. The button includes a flexible, radially curved central portion which provides oil can action when the indicator is moved between the up position and the down position. A geometrical configuration of the central portion may be adjusted to vary the gas pressure threshold at which the indicator will remain in the down position to automatically discharge a nearly empty gas container.

Abstract: A fuel fill cap for use in cooperation with a fuel tank of a fuel utensil to direct pressurized air within the fuel tank, wherein the cap includes a valve member mounted within the cap to permit pressurizing of the fuel tank through the cap. A modification of the invention includes a pressure gauge structure in association with the cap, as well as the pressure gauge and a pressure gauge audible whistle to indicate excess pressurization of the fuel tank.

Abstract: 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.

Abstract: A container or can having a body and end portion which include free ends comprising plastic materials and which are joined and sealed by cooperatively curling juxtapositioned free ends. The method end apparatus of the invention forms the body portion with an opening surrounded by a free end suitable for curling and forms the end portion with a central portion surrounded by a free end suitable for curling. The container body and end portion are joined by juxtaposing their free ends for forming a plurality of walls, then the plastic in at least one of the free ends is provided in a condition at the time of curling which allows stress and related elastic strain and memory to be imparted to the plastic, followed by curling with a curling tool to intimately engage the ends and concurrently curl the perimeters thereof into a tightly curled configuration, wherein at least the one free end includes internal stress and related strain and memory for providing a seam of integrity and reliability.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A flow indicator for measuring fluid flow through a pressure cooking vessel bleeder. The indicator comprises an elongated housing having a fluid passage formed therethrough which is vertically secured to the bleeder so that a fluid flow connection exists between the bleeder and a fluid inlet opening into said passage. An indicator ball is disposed within the passage and is suspended in the fluid flow emitting from the bleeder. A means for determining the vertical position of the ball within the passage is also provided which, in a preferred embodiment of the invention, comprises a measuring device such as a photoelectric cell circuit.

Abstract: A can structure suitable for packaging beer or the like includes an indicator formed integral with one end wall. The indicator provides visual, tactile and audible indication of the quality of the product in the can. Various specific indicator structures are disclosed.