Abstract: The invention is directed to a metallic easy-opening can end, and to a method of manufacturing the same, the can end having a tear panel which is highly resistant to blowout pressure. The can end is first drawn between a preforming punch and a die to an outwardly open concave configuration, and is thereafter compression scored between a scoring punch and a scoring anvil to reduce the thickness of the drawn metal, thus forming the removable tear panel.

Abstract: This disclosure relates to a machine for assembling partition pieces of corrugated board or similar material to form partitions therefrom, and includes means for feeding partition pieces toward conveying means and into guide means with means for shifting different ones of the guide means into alignment with the partition pieces whereby individual partition pieces from a single feed means are disposed in at least two different ones of the guide means. The conveying means include a plurality of spaced endless members with flight bars being united therebetween by quick disconnect coupling means and means for shifting the flight bars relative to each other to vary the spacing therebetween in the direction of conveyor travel. The machine further includes hoppers having bottom and upstanding walls at respective acute and obtuse angles to the horizontal whereby partition pieces are maintained in upright stacked relationship and are movable under gravity influence toward the upstanding walls.

Abstract: A tray having at least two compartments is erected from a blank and comprises a bottom wall, a pair of opposed side walls, a pair of opposed end walls and an improved divider separating adjacent compartments. The divider comprises a center panel disposed above the bottom wall and bridging the side walls, a pair of lateral panels extending downwardly to the bottom wall from opposite sides of the central panel, a base provided by a pair of flaps each extending from one of the lateral panels, and a pair of locating tabs each projecting from one of the lateral panels and received in a respective one of a pair of locating slots formed in the bottom wall. The base provided by the flaps is located between the lateral panels. A blank for forming the tray is also disclosed.

Abstract: A coating apparatus and method for coating the exterior of articles passing spray nozzles which are sequentially operated to prevent coating material from passing between adjacent articles. Each nozzle is adapted to apply a limited width of coating which extends the entire axial extent of an article with the combined nozzles coating the entire periphery thereof. Each spray nozzle is operated to either apply a partial coating, a complete coating or several coatings to each article. The apparatus also includes timing screw and a turret conveyor which are rapidly stopped by means responsive to article jamming, and means are provided for facilitating the removal of jammed articles from a housing of the timing screw.

Abstract: A score having improved anti-fracture characteristics formed by a scoring punch including inclined sides merging at a flat bottom face. At least one of the sides is formed with a horizontal ledge parallel to the flat scoring face and located in vertical spaced relation from the face.

Abstract: A method for high speed sinter molding having endless chains mounted side by side. Mold halves are attached at spaced intervals down the chains. The paired mold halves come next to each other to form a female mold into which is deposited a polymeric material. A treating core extends inside the mold and as the mold traverses its path, it surrounds the core and the core deposits polymeric powder, heats the polymeric powder, and then cools it. At the end of the mold path, the finished article is ejected and is ready for the next operation.Another embodiment of the same essential process is to place the paired mold halves in juxtaposition as they moved down over the core. This will result in the fabrication of a continuous conduit. A container may be fabricated by using hollow mold halves with heating and deposition accomplished before the hollow mold halves are pressed together to form a hollow container.

Abstract: This disclosure relates to the formation of a can body having at least one necked-in end portion wherein at least the end portion of the can body is of a lapped construction with a deformable bonding material therein. It is customary to neck-in ends of can bodies utilizing a necking die with a floating center post. The clearance in such die construction takes into consideration the extra thickness of the side seam. It is now proposed to make the clearance between the die ring and the center post such that when the necking in occurs, the side seam will be compressed, thereby assuring side seam end portions of a uniform thickness. It is also proposed to effect a reduction in the thickness of the deformable bonding material which will provide increased seam strength, better creep resistance, and last, but not least, superior double seaming latitude because of uniformity and consistency of dimensions.

Abstract: This disclosure relates to an apparatus for blow molding articles of the type having a plurality of split mold moving along a continuous path in which pairs of mold bodies define a mold chamber in which an extruded parison is inflated to a desired configuration, the improvement being the formation of each mold body in the form of first and second relatively slidable mold sections operable through cam follower and linkage means for sliding the sections relative to each other for increasing the predetermined configuration of the mold chamber to facilitate the release of the blown articles as well as scrap from the mold chambers.

Abstract: The easy opening end closure for attachment to a can body. The end closure includes a plastic pull tab having a closure tab sealed in a slit which defines a displaceable closure.The pull tab is attached by forging a plastic strip over a lid in a manner such that the plastic is caused to flow and force the metal panel against a cutting edge to form a slit defining a displaceable closure. At the same time the forged plastic flows beneath the adjacent edges of the slit to form a tight seal therein.

Abstract: Apparatus for stirring developer mixtures including ferromagnetic particles. Developer is located within a magnetic field created by either permanent or electromagnets. The field intensity is variably controlled and the time-rate for decreasing the field intensity is controlled.

Abstract: A press-on turn-off closure cap for glass containers which have a top rim sealing finish, a contiguous frusto-conical sealing finish, and on the neck therebelow a circumferential band of thread formations. The closure cap has a cup-shaped shell with a top panel and a two-step depending skirt. The shell is lined at the juncture of the top panel and the upper inner step with an annular gasket formed of solid plastisol or the like which provides hermetic sealing engagement with both the top rim finish and also the contiguous frusto-conical side seal finish. In addition the lower step of the shell is lined with a circumferential gasket which after being pushed down over the band of thread formations takes a cold-flow set so as to form mating thread formations capable of camming the closure cap off the container on relative rotation between the cap and container.

Abstract: This disclosure relates to a novel apparatus for perforating the necks of aerosol containers by providing an aerosol end for two or three piece containers having an annular shoulder joined by a radius to a cylindrical neck closed by an end wall, positioning the neck in exterior telescopic relationship to a punch having a circumferential axially terminal cutting edge, supporting the aerosol end in its telescoped position by seating of the end wall upon an end face of the punch, providing an annular guide ring with an internal diameter corresponding generally to the outer diameter of the neck, disposing the axes and imparting relative telescopic movement between the punch and guide ring to sever by a ripping action under tension the end wall from the cylindrical neck while at the same time sandwiching the latter between the inner and outer diameters of the ring guide and punch, respectively.

Abstract: An improved non-detachable end closure wherein a pull tab member initiates fracture of the opening score line. The pull tab member is fastened to the end panel with the pull tab nose portion resting on a raised bead formed on the opening flap member immediately adjacent the score line. The tab member is preloaded with a panelward force directed against the flap member, said force serving to reduce the effort required to fracture the score. Opening of the container is accomplished by lifting the tab member to initiate fracture of the score. The flap member remains attached to the end panel and is pushed into the container with finger or thumb pressure.

Abstract: Methods and apparatus for coating the interior side seam of can bodies. The can bodies proceed down a line in serial order with end toward end and uniformly spaced from each other down the line extending from a can body side seaming machine. An airless spray coating is shot into each can body from the front and the rear to leave a coating of plastic along the interior side seam of a soldered can body.

Abstract: The present invention is directed to a sealing unit for an autoclave for sterilizing contents packaged in pouches and sealing the latter, the sealing unit including a plurality of relatively movable pressure bars which are moved through the lost linkage connection such that open mouthed pouches which are held between opposing pairs of jaws by pairs of clips are first subjected to a sterilization media and thereafter are heat sealed closed.

Abstract: An aerosol container having a body formed of substantially circular cross-section at the upper end and gradually tapered intermediate the ends thereof and merging with a substantially V-shaped trough at the lower end.

Abstract: This invention relates to a coating apparatus for coating the exterior of articles passing spray nozzles which are sequentially operated to prevent coating material from passing between adjacent articles. Each spray nozzle is operated to either apply a partial coating, a complete coating or several coatings to each article. The apparatus also includes timing screw and a turret conveyor which are rapidly stopped by means responsive to article jamming, and means are provided for facilitating the removal of jammed articles from a housing of the timing screw.

Abstract: An aerosol container having a propellant means and a flexible product bag enclosed within a flexible deformable plastic container such as polyethylene. The propellant causes the product in the bag to discharge which reduces the volume of the product in the enclosing container thus reducing the pressure of the gas within the container to subatmospheric pressure. This collapses the container and is an indication that the contents have been used.

Abstract: An improved conveyor belt for use in a magnetic waste separator characterized by the provision of protective cleats mounted transverse the conveyor belt. The cleats are strategically positioned to protect the belt from abrasion caused by the sharp-edged metal fragments being processed. Further, the particular configuration and spacing of the cleats enhances tumbling or bouncing of the separated metal fragments which serves to reduce the amount of entrained nonmagnetic materials, thereby increasing separator efficiency.

Abstract: A releasable fastening for the ring portion of a tape tab to the body portion of the tab. The tab is a laminate of plastic and metal and is folded along its longitudinal edge to form a hem which not only increases the tensile strength of the tab and prevents tearing but, also, inverts the plastic, which is normally on the bottom of the tab, along opposite edges to provide plastic strips extending lengthwise of the tab. The ring portion is also hemmed and, in being folded onto the body portion, disposes the plastic strips on its edges against the plastic strips on the body portion. The opposing plastic hem strips are heated and clamped together to produce a fracturable attachment to temporarily hold the ring portion flat against the body portion which lays flat on the end panel. When the ring portion is pulled up preparatory to peeling the tape off the can end to which it is attached, the attachments fracture and allow the ring portion to be pulled up.