Abstract: A dual chamber flexible tube dispensing package is formed by providing a pair of plastic parisons, blow molding each parison to form a tube having a rigid finish, a shoulder adjacent the finish and a flexible body extending from the shoulder with a closed lower end; each tube having a generally D-shaped cross section throughout the finish, shoulder and body; each tube having an arcuate wall and a generally flat wall; and bringing the flat walls into abutting relationship. Each tube has a thread such that when the flat walls are in abutting relation, the thread on one tube form continuous thread with the thread of the other tube. In another form of dual chamber dispensing package, each tube has a plurality of vertically spaced integral ribs which extend transversely. The ribs on one tube are staggered relative to the ribs on the other tube so that when the tubes are brought into engagement, the ribs on one tube engage the ribs on the other tube and the shoulders are in abutment.

Abstract: A method and apparatus for blow molding plastic articles which utilizes one or more fixed needles and one or more micro vents associated with a blow mold cavity. Each needle has a first passage associated therewith through which vacuum is supplied to pull the molten plastic about the needle and a second passage therein through which air under pressure is introduced to tear the plastic and blow the article to the confines of the mold which has been closed about the plastic parison. Micro vents facilitate exhausting air which is about the parison. Preferably the second passage for compressed air is provided by a central bore and the first passage for the vacuum is provided by an annular space about the fixed needle. In a modified form, the fixed needle comprises dual air passages. Provision is made for utilizing plural molds with controls for supplying air and vacuum.

Abstract: A dispensing package including a plastic container having a surface recessed in portion of the container and an opening in the recessed portion of the container and a valve system in overlying position to the opening and including a valve member movable manually from a closed position to an open dispensing position is disclosed. The container has a flexible portion which can be squeezed for dispensing the product through the opening. In one form, the valve system comprises a fitment and a toggle valve pivoted on the fitment. The toggle valve includes a discharge passage which is closed and opened so that the product can be dispensed by squeezing the container. In another form, the toggle valve is pivoted directly in the recess on the plastic container. In another form, the valve system consists of a fitment having an opening and a valve member hinged to the fitment.

Abstract: A plastic container that includes a hollow container body having a body opening, a cylindrical finish wall portion surrounding the body opening and extending from the body, with external threads for receiving a closure, and a spout secured to and projecting axially from the externally threaded wall portion. The body, wall portion and spout are of as-molded one-piece or monolithic integral plastic construction. The axial dimension of the spout preferably is greater than that of the externally threaded wall portion of the container finish. The threaded wall portion or the spout has an axially oriented surface that lies in a plane perpendicular to the axis of the container finish for sealing engagement with a closure or cap that is threaded onto the container finish.

Abstract: A flexible tube and pump dispenser for lotions and the like including a flexible plastic tube having a first end and a second end. The tube includes an integral rigid finish at one end which has a radial flange and a radially inwardly extending wall. The flange has an opening therethrough. A pump dispenser having a plunger and an axial body extends through the opening in the sealing flange of the finish. The axial body of the pump dispenser has a flange engaging the flange of the finish. The flange on the body is held in position engaging the wall on the finish.

Abstract: A method and apparatus wherein an extruder provides extruded plastic parisons to a first and second horizontally movable blow mold assemblies, and each blow mold assembly includes two sets of blow molds, and each set includes a pair of blow mold halves. The blow mold halves are closed about the tubular parisons and moved to one of two blow molding stations where a blow pin at the blow molding station blows the parison to form a hollow blow molded article. More specifically, four platens are provided in each blow mold assembly. A first pair of outer and inner platens supports the first pair of blow mold halves and a second pair of outer and inner platens supports the second pair of blow mold halves. A pair of tie rods passes through all four platens. The first outer platen is attached to the ends of the tie rods. The second outer platen is moved by a mechanism such as a cylinder or toggle mechanism for movement on the tie rods.

Abstract: A combined drain back spout (DBS) fitment and plastic container assembly comprising a plastic container body and finish and a plastic drain back spout fitment having a pour spout connected to a surrounding drain gutter and spill-catching apron. The fitment apron has an integral mounting collar with a radial flange spanning the finish end edge and a collar skirt dependent therefrom and encircling the outer surface of the container finish and being sealably joined thereto by a spin weld joint. The lower free end edge of collar skirt is closely spaced from the juxtaposed surface of the container body, and the collar skirt and finish exterior surface conjointly define an intervening space for receiving, containing and hiding spin weld slag and/or shavings. The finish is corrugated to provide annular external ribs and intervening external grooves to thereby provide sacrificial parent spin weld material in the rib crowns and slag-receiving spaces in the grooves.

Abstract: In an apparatus wherein a plastic blow molding machine is operated to make hollow containers which are discharged and fall by gravity out of the machine wherein an endless moving conveyor which includes closely spaced vacuum cups is provided and positioned such that a reach of the conveyor is positioned horizontally and such that the vacuum cups face upwardly to grab and hold the plastic containers as they are discharged such that containers are held in axial alignment and circumferential orientation to one another.

Abstract: In a blow-molding system in which a parison programmer is coupled to orifice tooling in an extrusion die head for controlling wall thickness of an extruded parison fed to a blow-molding apparatus, a method of synchronizing operation of the parison programmer contemplates placement of observable indicia on the parison after the parison exits the die head. This indicia placement preferably is carried out under control of the parison programmer to place the indicia at a predetermined position along the parison profile, such that mis-positioning of the indicia indicates absence of phase synchronization of the parison programmer. The indicia is then observed on a molded article to determine phasing of the parison programmer relative to the molding apparatus, and operation of the parison programmer is adjusted to correct any mis-positioning.

Abstract: A dispensing package including a plastic container having a surface recessed in portion of the container and an opening in the recessed portion of the container and a valve system in overlying position to the opening and including a valve member movable manually from a closed position to an open dispensing position is disclosed. The container has a flexible portion which can be squeezed for dispensing the product through the opening. In one form, the valve system comprises a fitment and a toggle valve pivoted on the fitment. The toggle valve includes a discharge passage which is closed and opened so that the product can be dispensed by squeezing the container. In another form, the toggle valve is pivoted directly in the recess on the plastic container. In another form, the valve system consists of a fitment having an opening and a valve member hinged to the fitment.

Abstract: A plastic tube with an integral finish and a twist off tab are blow molded. The twist off tab is connected to the finish of the tube by an annular groove forming a line of weakness. The tab is formed by the closing of mold halves about an extruded parison to form a flat twist off tab connected by a thin membrane to the exterior of the finish. The tab is then blow molded to form the tube. After the mold halves are opened, the twist-off tab is trimmed to provide the finished tube. The tab is formed by a conventional blow molding process without the need of a secondary operation. A plurality of blow molded corrugations are provided between annular blow molded ribs on the finish and provide added strength to the finish to facilitate removal of the tab.

Abstract: The plastic container and body including a body portion, a neck defining a finish and having an opening therein and a closure connected to the end of the neck by a strap. The strap is formed with a weakened line such as to define a integral hinge about which the closure is folded after filling the container with the contents in order to bring a plug portion of the closure into engagement with the opening of the finish.

Abstract: The multiple compartment plastic container comprises an injection molded finish having a circumferential wall and at least one diametrical wall dividing the finish into at least two passages and an extruded and blow molded body integrally attached to said finish and providing at least two compartments communicating with said passages. The container is made by injection molding a plastic finish having a circumferential wall and at least one diametrical wall dividing the finish in two or more passages, extruding a plastic tube with wall of the tube integral with circumferential wall of the finish and the diametrical wall, closing a blow mold about the tube, and blowing air into the tube through the finish to the confines of the blow mold.

Abstract: A hollow plastic container having a finish which has a diameter less than the diameter of the body portion of the container which is made by forming a parison with a neck portion for defining the finish and a body portion and thereafter expanding the body portion to a cross section greater than the cross section of the neck portion. The neck is then trimmed by removing plastic material from the outside of the neck and from the top of the neck to form the finish to the final dimensions. In one form, the parison is a multi-layer parison in order to form a multi-layer plastic container.

Abstract: A method and apparatus for blow molding plastic articles which utilizes one or more fixed needles and one or more micro vents associated with a blow mold cavity. Each needle has a first passage associated therewith through which vacuum is supplied to pull the molten plastic about the needle and a second passage therein through which air under pressure is introduced to tear the plastic and blow the article to the confines of the mold which has been closed about the plastic parison. Micro vents facilitate exhausting air which is about the parison. Preferably the second passage for compressed air is provided by a central bore and the first passage for the vacuum is provided by an annular space about the fixed needle. In a modified form, the fixed needle comprises dual air passages. Provision is made for utilizing plural molds with controls for supplying air and vacuum.