Abstract: A pool sweep bag is provided for use in holding debris collected by pool sweeps and pool cleaners constructed of porous material and having a collapsible snout section at the bottom end and a closable seam at the top end.

Abstract: A product made up of a web that is a ribbon of valved bags of synthetic resin, with delimiting pairs of transversal weldings located in close proximity together and between which is formed a pre-established tear-off line permitting separation of the bags even after filling; the web or ribbon being manufactured as a roll, and the pairs of transversal weldings being adjacent to the valve of one of the contiguous bags and delimited by said weldings.

Abstract: A container for fluid including a front flexible wall and a rear flexible wall sealed together along marginal portions thereof to define a body for holding fluid and unsecured along other portions thereof to provide a fluid supply opening. A valve is positioned in said supply opening between the front and rear walls, to provide a fluid inlet passageway when the valve is in an open condition and to close the fluid inlet passageway when the valve is in a closed condition. The valve comprises a flexible inner sheet and a resilient or spring sheet opposed to each other. The inner sheet is normally in contact with the spring sheet for closing the inlet passageway. The inner sheet and spring sheet extending outward from each other upon the application of an external force for opening the fluid inlet passageway, so that fluid may pass between the inner sheet and the spring sheet and into the body of the container.

Abstract: A one-way valve for a leg urinal or similar container comprising a thin, elastic tube formed with a permanent spiral twist giving it a memory that positively closes the tube against liquid backflow. The tube is nonetheless highly sensitive to internal pressure and unwinds to open the tube and permit forward liquid flow or even tiny volumes of liquid. The tube is stretch fit on an inexpensively molded nipple member and the tube and nipple member form a unit that is readily operationally insertable into and removable from the container to be discarded and replaced or to permit easy access for cleaning the container.

Abstract: Valve bags having a vent for exit of air from the bag as it is filled, with a filter for the vent incorporated in the bag as part of the bag for preventing escape of product from the bag. In each of two types of bag disclosed, the filter is formed as a pocket for receiving a vacuum member for evacuating air from the bag through the filter. In one of these two types, the valve is at a corner at one end of the bag and the pocket is at the opposite corner at this end. In the other, the valve and pocket are at one and the same corner, the pocket being under the valve. In a third type of bag disclosed, the filter is part of a valve sleeve for the bag.

Abstract: A bag of foldable material has an end closure closing off one end of the bag and a filling valve tube device extends into the end closure at a corner of the bag, the filling valve tube device has an inner end disposed within the interior of the bag and has an inner layer which is convertable from a normally inactive adhesive state to a state capable of sealing off the filling valve tube device. A shut-off lip device of flexible material is disposed within the end closure and projects into the interior of the bag beyond the interior end of the filling valve tube device, the shut-off lip device being constructed to be responsive to the pressure of the filling material introduced into the interior of the bag to close off the interior opening of the filling valve tube device.

Abstract: A resealable container having flexible side walls defining an access opening, and a sealing cuff disposed internally of said access opening. The sealing cuff is formed from a film sheet having a first marginal edge affixed to the container about the periphery of the access opening and having a free second marginal edge extending into the container. The sealing cuff defines mutually oposed surfaces having high cling characteristics so as to form a seal therebetween when brought into surface engagement. An external cuff having high slip properties may be formed peripherally of the access opening to facilitate opening of the internal sealing cuff.

Abstract: A urine collection receptacle has a body formed by walls sealed along the periphery. First and second sheets form a drape which is situated between the walls. The drape extends across the body below the inlet, with the side edges of the drape sealed along opposing sections of the periphery. The sheets are sealed to each other along spaced vertical lines to define the body of a flap valve. The vertical sealed lines are severed to detach the flap valve body from the remainder of the drape. The sheets may also be sealed along oppositely oriented, downwardly inclined lines to form a funnel to direct liquid from the inlet toward the flap valve. The structure facilitates manufacture because the drape is sealed to the receptacle body in the same automated operation which seals the periphery of the walls.

Abstract: A bag for mother's milk made of a laminated film or tube prepared through extrusion molding for containing mother's milk therein comprising a sealing portion provided on at least one side of the bag and extended across the extrusion direction and notches provided on the sealing portion for opening the sealing portion along the extrusion direction, while the bag is tightly sealed without any object therein, and a funnel-shaped reflux preventing member.

Abstract: A valve bag having an upper bottom with a valve and a lower bottom symmetrically folded in a manner where the bottoms lie atop the central bag portion in a side-by-side and parallel manner is provided.

Abstract: A bag for containing articles to be sterilized is automatically sealed by means responsive to a sterilizing environment applied to the bag. One or more actuators are releasably attached to the bag to automatically close one or more valves at the appropriate point in a sterilizing cycle to result in a vacuumized sterile package.

Abstract: A container, which is flat in its empty condition, of plastic, rubber or another flexible material, especially for the collection of urine and/or faeces. The container comprises two outer walls (2) joined together in a surrounding seam (6), an inlet (54) and, if desired, an outlet (58). The inlet is provided with a non-return valve formed by enveloping a tube end (76) in two intermediate layers having the same extent as the outer walls (2) in the width direction of the container, the intermediate layers having free edges (80) spaced from the mouth (78) of the tube. The intermediate layers lie closely against each other in an area (56) situated between the edges (80) and the mouth (78) and delimited laterally by seams (72,74) joining the intermediate layers.

Abstract: A valved bag consists of a collapsed section of a tubular plastic film, which has been formed in that the side portions of a plastic film web have been infolded to overlap each other and which has been provided with transverse top and bottom seam welds and in the overlap area of the side portions has been provided with two spaced apart parallel longitudinal seams, which join only said side portions and terminate or are interrupted at a distance from the top seam weld so as to provide a filling passage. In order to simplify the manufacture of the valved bags, the longitudinal seams consist of strips of adhesive and are in contact with both side portions of the film web at both edges of the overlap area. One of said side portions is provided with an adhesive bond-inhibiting agent adjacent to the filling passage at least across the strip of adhesive.

Abstract: A bag suitably for mixing has a compartment, a pocket in the bag having a mouth opening so that either it can be filled with liquid to a predetermined volume or it can receive a dispensing member. The pocket is easily ruptured when the mouth is closed and, when mixing, a volume of liquid may be discharged into the compartment for mixing with a material in the compartment. During mixing the walls of the pocket abut to serve as a non-return valve in the bag.Apparatus for making the bags includes web bonding means, feeding means to feed film of waterproof thermoplastics material from rolls to the bonding means, and interrupting means to form the mouth in the pocket.The apparatus may form bags with open bottoms for insertion of the material for mixing and subsequent closure or sealed, filled bags.

Abstract: A drainage bag employs a non-return valve assembly including at least one baffle positioned between the top and bottom of the bag. Each baffle extends completely across the interior of the bag and includes an upper portion which is continuously attached to one face of the bag and a lower portion which is attached to an opposite face of the bag at spaced intervals so as to form at least one opening adapted to permit liquid to flow readily from the top of the bag to the bottom of the bag while inhibiting liquid from flowing from the bottom of the bag to the top of the bag.

Abstract: A sack is constructed from a thermoplastic film of which the side portions are brought into partial overlapping relationship to define a tube section and top and bottom weld seams are applied transversely. A longitudinal weld seam applied within the confines of the region of overlap terminates at a spacing from the top weld seam to define a filling valve passage. The region of overlap contains a longitudinal inner strip of reduced thickness made in one piece with the walls of the sack.

Abstract: In the particular filling method disclosed in the specification a side valve type packaging bag is filled by inserting a filling tube into the bag valve, expanding a rubber tube surrounding the filling tube to form a seal with the valve opening, supplying particulate material to the interior of the bag and rotating the filling tube to distribute the particulate material within the bag, and then wetting an adhesive in the valve before withdrawing the filling tube from the bag. The filling apparatus according to the invention includes a filling tube which is mounted for rotation about its axis on a support plate and has a pouring spout directed at an angle to its axis and a pneumatic piston connected to the filling tube to rotate the tube about its axis and weighing mechanism for detecting filling of the bag.

Abstract: A liquid dispensing container of the pliable pouch type having a spout of a serpentine shape extending from the pouch and toward a marginal edge of the container. The spout is unsealed by tearing off an end of the container which has a pre-cut slit therein to facilitate the tearing.

Abstract: A valve bag and an interconnected series of valve bags is disclosed which have alignment means on the bag. This is shown as a continuous tunnel along a first edge of the interconnected bags for guidance into an automatic bag filling machine, for example, onto a mandrel threading the tunnel. Each bag has a valve formed by overlapping portions of panels of one wall of a bag. Parts of the overlapping portions are sealed together and other parts are left open between two valve side edge lines to form a valve from the overlapping material.

Abstract: A valve bag and a series of interconnected valve bags is disclosed wherein the bag is constructed from first and second walls, with one wall having first and second overlapping panels. The valve is formed between unsealed portions of the overlapping panels, and other areas of the overlapping portions are sealed together. A tunnel is provided along a first edge of the series of bags so that the series may be guided into a bag filling machine. This tunnel is to be threaded by a mandrel to align the series of bags in the bag filling machine. As constructed, the valves in the bags are sealed closed, and only at the filling machine is the tunnel slit open by a cutter to expose the exterior opening of the valve so that the bag may be filled through this valve.

Abstract: A self-sealing valved bag including elongate facing outer walls periphally secured together except for an unsecured end region, an inner wall between the outer walls extending across the unsecured end region, the inner wall being secured to one outer wall partially across the unsecured end region to leave an access passageway between the inner and said one outer wall, the inner wall being secured to the other outer wall entirely across the unsecured end region to close the latter between the inner and said other outer wall, and a pocket exteriorly on an outer wall opening toward an end thereof and terminating in a closure medially of the outer walls.

Abstract: A valved bag including elongate facing outer walls peripherally secured together except for an unsecured end region, an inner wall between the outer walls extending across the unsecured region and secured to one outer wall partially across the unsecured region to leave an access passageway, extensions on the inner and other outer wall extending across the unsecured region and secured together to close the unsecured region, and a sealing flap exteriorly of the inner wall extension and the adjacent region of the secured outer wall and secured thereto for removable sealing engagement with the later by internal pressure of the bag.