Abstract: In this invention an extrusion aid comprises a strip of material which is desirably a low friction material such as a polymer, but nevertheless sufficiently rigid to deform the flexible wall of a tube containing paste or fluid contents, and the strip is provided with an elongate slot which is wider at its ends than intermediate its ends, and may terminate in part-circular walls. If the part-circular walls are spaced apart to accommodate the edges of a tube after extrusion takes place, the extrusion aid will be less likely to grip those edges and furthermore the aid will be easily positioned over the tube.

Abstract: An integral molded container including a neck, an interior spout or pour neck joined to the neck by a stable circumferential inversion column.

Abstract: An apparatus for extruding the stored fluid contents of a single cylindrical cartridge which has a side wall and a longitudinal partition wall which defines semicylindrical chambers within the cartridge, the apparatus comprising a cylindrical tube which has a closed end wall and an open end with an end with a bevelled edge. A pair of semicylindrical sleeve pistons are concentrically positioned in a spaced parallel relation within the tube, with the space between the pistons being coplanar with the partition wall to permit the sliding of the tube longitudinally along the external periphery of the cartridge. The pistons are each mounted on the closed end wall, within the tube, and include upstanding free ends which are adapted to engage corresponding slidable semicircular plungers that function as seals within the corresponding chambers of the cartridge.

Abstract: A dispenser for flowable materials has a dispensing head with a chamber having inlet and discharge openings of a predetermined volume, a closure to open and close the inlet, a body which can be positioned in the chamber, for occupying a portion of its volume, a supply of flowable material to the inlet, and, the body being moveable so that at least a portion of the body is withdrawn from the chamber to increase the effective volume of the chamber and cause material in the discharge opening to be sucked back into the chamber.

Abstract: A foam dispenser includes an elongated squeezable relatively small vertical container having a top disposed open neck and being otherwise sealed. An elongated vertical member has hollow upper and lower sections which communicate with each other. The upper end of the upper section has a relatively large opening. The lower section has a relatively small opening. The member is sealed in the neck with the large opening disposed above the neck and constituting a discharge orifice. At least two vertically spaced horizontal sieves are sealed one below the other in the orifice. The upper one of the sieves is a fine sieve, the lower one of the sieves is a coarser sieve.

Abstract: A dosing system has a vessel for holding a fluid and a dosing device for dispensing a measured quantity of fluid from the vessel. The dosing device hermetically seals the vessel and has a valve with a fluid passage, a piston surrounding the valve and a cylinder housing surrounding the piston. The valve is positioned in a first position wherein fluid is gravity fed from the vessel to a chamber formed between a drive face of the piston and the cylinder housing. The valve can be reciprocated from the first position to a second position whereat the valve closes the inlet from the vessel to the chamber. The piston closes the passage within the valve when the valve is in the first position and opens the passage when the valve is moved to the second position to permit discharge of fluid from the chamber. When the valve moves to a third position, the drive face of the piston moves toward a shoulder of the cylinder housing to thereby pump the fluid from the chamber.

Abstract: A container for preparing a substance mixed from components which are inilly separated comprises two chambers (54, 56) separated from each other by a partitioning structure (52). One chamber (54) holds a liquid component and is closed by a sheet (53) of plastics material, and the other chamber (56) holds a powdery component and forms a mixing chamber. An actuating member (58) is movably disposed within the partitioning structure (52). The actuating member (58) includes a seal (64, 66) which is locked in the rest and storage position of the container and is released when the actuating member is moved into its actuated position in which the sheet (53) is perforated. In the actuated position, the seal (64, 66) functions as a valve to permit the liquid component to enter the mixing chamber (56) while preventing parts of the mixture or components thereof from flowing back from the mixing chamber (56) into the first chamber (54).

Abstract: In the caulking gun disclosed herein, the piston of a caulking cartridge is driven by axial movement of a exteriorly threaded tube which is, in turn, driven by a rotating ring gear which is interiorly threaded to mate with the tube. The threaded tube is longitudinally split so that it can collapse out of engagement with the threads on the ring gear. A tapered plug cooperates with an expandable bushing inside the tube so as to hold the tube in engagement with the threads in the ring gear when the plug is in a first postion but, when the plug is moved to a second position, the bushing allows the tube to collapse thereby releasing pressure from the piston and allowing quick retraction of the split tube to facilitate loading of a new caulking cartridge.

Abstract: The invention discloses a cap made of plastic material for containers holding liquids, which includes an essentially cylindrical main body and an element for dispensing the liquid. The dispensing element has an essentially round, flat upper part, hinged into the main body and a lower part in the shape of a socle having a partially cylindrical base surface which slides on a corresponding concave surface belonging to a main body. The contact between the cylindrical surface of the base and the concave surface of the main body insures the tightness. Moreover, around the opening of the concave surface of the cylindrical body there is a ring-shaped projection acting as a seal when the dispenser is in its open position. When the dispenser is closed, the ring-shaped projection matches a corresponding round indentation which is found in the base, so as to insure the tightness between the dispenser and the body of the cap, regardless of the position of the container.

Abstract: A container filling nozzle of rubber has a wide, substantially square, inlet opening and a cruciform outlet slit which, in the absence of external force, is maintained closed owing to the resilience of the rubber. In the zone of the slit, the internal surface of the nozzle wall is formed with protrusions which extend along both sides of each of the arms of the slit and constitute respective thickenings. The protrusions terminate short of the central ridge of the V-form lips of the nozzle. Thus, the lips have their outlet zones more rigid and yet retain the necessary flexibility, so that sealing of the slit is improved and yet the lips can open wide.

Abstract: A dispenser for dispensing two components is disclosed which comprises a drum 10 in which a tube 20 is supported. A first piston 12 is arranged within the drum 10 and has an opening 22 through which the tube 20 extends. The opening is provided with a plug 80 which has an aperture also through which the tube 20 extends. The plug supports a blade 32 which bears on a second piston 40 arranged within the tube 22. The plug 80 is fixed relative to the piston 12 so that it and the blade 32 move with the piston 12. During movement of the piston 12 the blade 32 slices the tube 20 and bears against the second piston 40 so that the first piston 12 and the second piston 40 move in a fixed manner as a single unit. During movement of the pistons 12 and 40 the two components are dispensed from the drum 10 and the tube 22 in a particular ratio depended upon the volume displayed by movement of the pistons 12 and 40. The dispensed components can therefore be mixed together in the predetermined ratios.

Abstract: The present invention relates to a toothpaste dispensing apparatus which includes a housing having an adaptable nozzle at the top of the housing and two adaptable grasping assemblies located within the housing for holding the toothpaste container. A drive assembly is mounted within the housing and drives a carriage for squeezing along the length of the toothpaste container. A control system is also included for activating the drive assembly and for automatic reversal of the drive assembly.

Abstract: A method and apparatus are disclosed for delivering particulate material while minimizing the release of dust. The apparatus comprises a vertical conduit, and movable flap adapted to close the lower end of the conduit and a counterwieght or linear actuator for moving the flap to close the conduit whenever the quantity of material within the conduit drops to be predetermined level. The device operates so that a column of solid particulate material is maintained in the lower end of the tube at all times to prevent escape of dust.

Abstract: A child-resistant nozzle assembly for a fluid dispenser has an external anti-rotative stop, and the dispenser body has a spring-biased tab abutting the stop in an off position of the nozzle at which the discharge passage is closed for locking the cap against rotation from such off position. The tab is flexed outwardly away from the stop to permit cap rotation for opening the spray discharge.

Abstract: This invention relates to a kind of gas ignition glue gun and more particularly to one which uses a cutter to cut inserted glue stick into two halves, and uses gas to burn cotton asbestos to further heat a tubular insert, into which a glue stick is inserted, so as to efficiently melt the inserted glue stick into semiliquid for further output for sealing process by means of the operation of the feed control mechanism thereof.

Abstract: A device for dispensing a predetermined quantity of the contents of a container, including a container for the contents. The container has a base to locate the container in an upright position and has a generally upwardly facing opening. The device also includes a chamber on the container which has a first end in communication with the opening and a second end open to dispense contents from the chamber when the container is moved from an upright position to cause the contents to enter the chamber. Also, the device is provided with a valve spool mounted inside the chamber for regulating the quantity of contents flowing through the opening into the chamber. The valve spool includes a piston for leading the flow of contents from the first end of the chamber to the second end. The valve spool further includes a valve for closing the opening at the first end after the chamber receives the predetermined quantity.

Abstract: The easy pour spout described herein is designed to facilitate the pouring of a fluid from its container, such as oil for the engine, power steering and transmission of an automobile as well as radiator antifreeze, without the use of a funnel. The spout is designed as a totally self-contained unit that facilitates fast delivery into the desired part of the automobile without spilling. This spout is screwed onto the individual fluid container and after the spout and container are positioned for delivery, the delivery is actuated by a downward thrust on the container and spout.

Abstract: The present invention is a variable blending dispenser for fluids, particularly for fuel dispensers. The dispenser controls variable valves according to volumetric data observed by flow meters on input lines to the dispenser, by calculating measuring error as the difference between desired blend ratio and the observed blend ratio calculated from volumes of blend components dispensed. The dispenser successively corrects the settings of the valves after dispensing predetermined volumes, the corrections determined by a volume based PID error function so that the total amount of each blend component is separately and accurately measured while providing the desired blend ratio.

Abstract: An impeller for metering material from an input to an output is mounted on a central shaft. The impeller is formed by a hub, a disc formed with the central hub and extending normal to the rotational axis of the hub. A plurality of spaced first vanes is formed with the disc and extends from the periphery of the disc to the hub. A second plurality of spaced vanes is attached intermediate the first vanes to the disc and extends from the periphery of the disc to a location intermediate the periphery and the hub. The back of the disc has a plurality of slots which will mate with both the first and second vanes of a preceding impeller. An adapter disc is also provided which has a plurality of radial slots on both surfaces of the disc which mate with the vanes of the previously described impeller.

Abstract: An integral self-supporting and recyclable liquid container is disclosed. The container includes an expandable plastic bag and a reinforced assembly which together define an expandable and self-contained liquid chamber from which the contents can be dispensed.