Abstract: A method and apparatus for positioning and indexing molded hollow plastic articles for trimming molded hollow plastic articles having flash and a finish for a closure wherein the articles are supported and moved in succession by a vacuum conveyor which holds the articles in upright position and moves them past successive stations for deflashing, facing, inspection, rejection and unloading. The conveyor is a chain slat conveyor having longitudinally spaced vertical holes that communicate with a vacuum chamber over which the conveyor is trained. The conveyor is driven intermittently and moves the articles in succession past each of the stations. At the load station, the articles are oriented so that they are in proper alignment and relationship to the openings in the conveyor.

Abstract: A self-draining container and method of forming. The container includes a body and a wall extending upwardly from a body opening. The wall surrounds a dispensing spout which extends above the top of the wall. A web joins the wall and the dispensing spout to form a drain channel. A drain opening is defined adjacent the channel for draining fluid from the channel into the container body. A cap having a depending skirt defining a thread which mates with an internal thread on the container wall to close the container.

Abstract: A blow molded plastic bottle and method and apparatus for forming in which the bottle has a predetermined thickness providing sufficient strength and rigidity in its upper and lower areas to maintain their shapes as molded, a thinner film-like thickness in the center and a compression molded handle integrally formed with and extending from the upper area.

Abstract: The method and apparatus for making a multi-layer plastic container with an integral handle for holding liquids and the like by enclosing a hollow parison of molten plastic which is at a blow molding temperature, pinching a portion of the hollow parison as the mold clses to form a hollow moil portion and neck portion, simultaneously pinching a portion of the hollow parison to form a hollow handle portion while leaving a portion of the parison to provide a passage from the moil poriton to the handle portion and the expanding the parison by supplying gaseous pressure to the moil portion and from the moil portion to form the container from the moil portion through the passage to form the handle.

Abstract: The method of making polystyrene foam for foam products which includes utilizing atmospheric gases as the blowing agents or preferably mixing one or more of these gases and a blending agent which is non-volatile at the extrusion temperatures, introducing the mixture to a molten thermoplastic polystyrene resin containing nucleating agents such as sodium bicarbonate and citric acid and extruding the thermoplastic in the form of a foam. The resultant foam has substantially no residual blowing agent, is dimensionally stable at ambient temperatures and when used with a non-volatile blending agent can be made with small amounts of blowing agent permitting cooling of the melt without high loading on the extruder. The foam may be coextruded with one or more layers of thermoplastic films so that the resultant product is adpated for use for plates, cups, food containers or packaging and for labells for containers such as glass and plastic containers and for labels that are shrunk in place on a container.

Abstract: In an apparatus for making hollow plastic articles in which a label is positioned in each of a plurality of spaced partible molds in a predetermined array, preforms are positioned in each set of partible molds and the molds are closed and the preforms are blown outwardly to the confines of the molds to apply the labels to the resultant hollow plastic articles.

Abstract: A plastic container having a multilayer label applied by in-mold labeling during the blow molding of the plastic container. The label comprises a non-cellular inner layer, an intermediate cellular layer compatible with the inner layer and heat bonded to the inner layer, and an outer non-cellular plastic layer compatible with the intermediate cellular layer and heat bonded thereto. The label is positioned in a mold cavity with the outer layer in contact with the mold. When a hot plastic parison at molding temperature is expanded by fluid pressure against the walls of the mold to form a container, the non-cellular inner layer becomes bonded to the outer surface of the container by heat from the container.

Abstract: A carrier for a container package holding an array of cans each of which has an annular bead on the upper end thereof comprising a sheet of flexible plastic material having a plurality of openings forming an array for receiving the ends of the cans and at least one film of plastic material coextensive with the sheet and bonded to the periphery of the sheet. The sheet is made as a coextruded sheet comprising a first relatively thicker layer and a second relatively thin layer adjacent the film. The second layer has a melting point lower than that of the first layer or the film and facilitates the bonding of the film to the sheet by heat. In a modified form two layers of film are bonded to the sheet.

Abstract: A method and apparatus of applying carriers to arrays of containers, in particular cans, comprising providing a web of interconnected plastic carriers, each carrier having an array of openings for receiving the upper ends of the containers, the configuration of the openings being slightly less than the cross section of the upper ends of the containers, providing a plurality of containers, each container having a bead, a neck and a body portion, moving the cans in a predetermined path, moving the web in a downward converging path with respect to the direction of movement of the containers, engaging the trailing edges of the beads of each transverse row of containers with the trailing edges of a corresponding row of openings in the carrier.

Abstract: A degradable bottle and can carrier comprising a body having a plurality of openings for receiving the bottles or cans. The body is made of a plastic material which is degradable upon exposure to ultraviolet radiation. A water soluble ultraviolet absorber is applied to the exposed surface of the carrier such that the carrier is protected from degrading under ultraviolet radiation until such time that the carrier is discarded and becomes wet by rainfall, water or snow.

Abstract: A two-piece nestable cup-like container comprising a continuous side wall having an open upper end and includes a recessed bottom. The side wall is formed from a single double ended sheet of a heat-shrinkable thermoplastic material. The ends of the sheet are joined to one another along a liquid-tight seam. The side wall extends downwardly from a point near the open mouth of the upper end of the container to a point near the bottom and is thereafter folded at its lower edge upwardly to form a double wall portion and a radially inwardly extending annular portion that underlies a separate bottom member that is sealingly joined to the radially inwardly extending portion on the bottom edge of the side wall. In accordance with the method and apparatus, a sleeve made from the sheet by joining the ends is heat shrunk on a mandrel and the free edge at the lower portion of the side wall is caused to shrink inwardly.

Abstract: A dispensing package for dispensing liquid comprising an injection blow molded container having a flexible body and a neck comprising an outer wall and an inner wall. The inner wall defines a dispensing opening. A closure has a transverse wall, a peripheral skirt and a peripheral foot for engaging a flat surface. Interengaging means between the closure and the outer wall hold the transverse wall in sealing engagment with the inner wall of the neck for closing the dispensing opening. The closure is movable axially relative to the container between a first position sealingly engaging the neck of the container and a second position wherein fluid is permitted to flow to an outlet so that when the wall of the container is flexed a portion of the contents is dispensed. In one form, the outlet is in the skirt. In another form, the outlet is in the transverse wall.

Abstract: Apparatus for applying labels in the molds of a plastic blow molding machine of the type wherein a plurality of sets of molds are mounted on a wheel rotatable about a horizontal axis. Mold sections are moved toward and away from one another to enclose a parison, and the parison is then blown to the confines of the cavity between the mold sections. The apparatus removes labels successively from one or more magazines, and deposits labels on an endless conveyor that transports the labels to a position adjacent an open mold. The apparatus laterally transfers the labels successively from the conveyor to a position within the mold section, such that when a mold closes about a plastic parison and the parison is blown, the labels become adhered to the blown plastic article.

Abstract: In the method of making hollow plastic articles in which a label is positioned in each of a plurality of spaced partible molds in a predetermined array, preforms are positioned in each set of partible molds and the molds are closed and the preforms are blown outwardly to the confines of the molds to apply the labels to the resultant hollow plastic articles.

Abstract: A device for forming a rolled rim at the unrimmed mouth of the body of a container having a body which is fabricated from a sheet of an expanded thermoplastic material, the device including a first member with a first annular rim-forming surface, and a second member which is reciprocable relative to the first member. The second member has a second annular rim-forming surface which forms a generally closed rim-forming chamber with the first annular rim-forming surface when the second member is in a first position relative to the first member, the second member being reciprocable to a second position in which the first annular surface and the second annular surface are separated to permit the withdrawal of a container with a rolled rim at the mouth from the first member.

Abstract: A plastic container having a plastic wall that includes two plastic layers bonded together without a separate adhesive layer, the two layers being a barrier layer and a support layer, the support layer being a blend of a polyolefin, a polymer having a polar group and a barrier polymer.

Abstract: A self-draining container is disclosed. The container includes a body and a neck, wall and dispensing spout extending upwardly from a body opening. The dispensing spout has a diameter equal to or greater than the diameter of the neck. The wall surrounds the dispensing spout which extends above the top of the wall. A web joins the wall and the dispensing spout to form a drain channel. A drain opening through the spout is defined adjacent the channel for draining fluid form the channel in to the container body. A cap having a depending skirt defining threads mates with threads on the container wall to close the container.

Abstract: A six-sided sealed carton which is formed by folding a generally rigid, unitary, die-cut blank of a composite polymeric material, in which one of the ends is provided with a reclosable pour-out spout that includes an integral part of the blank, at least some of the corners of such carton being self-sealed by webbed areas or gussets which are integral portions of such blank but which are of reduced thickness relative to the major portions of the remainder thereof, such carton being adapted to contain a particulate material which is in direct contact with the inner surfaces thereof. In a preferred embodiment the carton is formed from a die-cut sheet of a composite polymeric material, a major portion of the thickness of which is an expanded polymeric material.

Abstract: In the forming of an article by blow molding parisons into conformity with cavities of an array of mold sections parisons in the form of tubes are extruded from an extruder into an array of neck molds on a head, the head is moved axially away from the extruder to define the parisons, mold sections are closed about the parisons and the parisons are blown outwardly and a take out mechanism grasps and removes the containers after the mold sections are opened. The apparatus for application of labels to the hollow blown plastic articles includes a label carrier mounted for reciprocating movement between the open mold sections and supporting an array of spaced vacuum pick up devices.

Abstract: Degradable compositions of polyesters, polyamides, polystyrenes and polyvinyl chlorides containing effective degradable amounts of CO in the composition.