Abstract: A system and process for electrodynamic powder coating of conducting and non-conducting substrates using an electrodynamic fluidized bed. The system generally includes a coating applicator means for applying charged particles to the substrate to be coated, and postcharging means for applying to the substrate an additional charge of such polarity as to cause an increase in the electrostatic forces holding the coating particles to the substrate. The system further includes a precharging means for precharging the substrate with a charge of such polarity as to effect more uniform coating of the substrate and a higher rate of coating. Where the substrate to be coated is a continuous web, the system includes a conveying means for conveying the web through the various positions adjacent to the three aforementioned means.

Abstract: A method of making a domed end for a container wherein a cup-shaped blank is initially formed and the blank has a skirt which terminates in a radially outwardly directed flange. This flange is utilized to support the blank and the resultant domed end throughout plural forming steps, and as a final forming operation, the flange is wiped down to form an extension of the skirt of the domed end with the skirt extension terminating in a narrow peripheral portion of the flange which now defines an out-turned lead-in portion for facilitating the telescoping of an open end of a can body within the skirt.

Abstract: This relates to the necking-in of a free end portion of a container, and particularly a very thin wall can body, utilizing necking-in tooling. The tooling differs from conventional tooling in that in addition to the necking-in operation, it also serves radially inwardly to turn the free edge portion of the container body to facilitate leading-in of the necked-in portion into another tubular container component with the in-turned free edge portion also providing a section modulus which effects stiffening and form retaining of the free end portion. In addition, it has been found that conventional necking-in tooling for aluminum can bodies having a free edge thickness on the order of 0.0075 inch will not perform satisfactorily on like can bodies having a free edge thickness on the order of 0.006 inch, and that surprisingly by increasing an adjacent radius, the tooling will perform satisfactorily.

Abstract: A welded seam between overlapped edges of sheet material wherein the sheet material is heated to a temperature below the melting temperature and is forced together under high pressures to form a forged weld. The thickness of the sheet material in the weld area is reduced from double thickness to a thickness approaching a single thickness, with the weld interface being diagonally disposed. The weld is effected by grain growth across the interface such that the particular line along which the meeting surfaces of the metal are welded together is unobservable upon etching a cross section thereof and with magnification on the order of 100X. The heating is effected by applying to opposing edge portions which are to be overlapped and welded a high frequency current which effectively reduces heating to edge portions only of the metal with the heat effected area being in the vicinity of 0.1 inch.

Abstract: This disclosure has to do with an easy opening container end wherein substantially the entire end panel is removed. The removable panel portion has rigidly attached thereto a pull tab which is first utilized as a lever to obtain the initial rupture of the end panel and then as a handle to tear out the removable panel portion. The removable panel portion is provided with a weakening line immediately adjacent the connection between the pull tab and the removable panel portion for the purpose of first venting the interior of a container and then forming a hinge which will permit the necessary pivoting of the pull tab relative to the end panel.

Abstract: Injection blow molding equipment for the production of hollow articles wherein cores are axially inserted in blow molds and blank molds is disclosed. Compact core assemblies and fluid supply systems integral with the platens allow the mold parts to be mounted on the surfaces of opposed, relatively movable platens. Partible neck rings associated with each core open divergently outwardly as the blow mold and core separate, to shorten machine cycle time. A manifold, supplied with cooling fluid from the periphery of a core mounting plate, distributes heat transfer fluid to the core assemblies for cooling the neck rings. In one embodiment, mounting blow mold sections are mounted on contra-oscillatable mounting members and are opened and closed by arcuate movement of the mounting members.

Abstract: A self-contained data acquisition device or probe capable of monitoring any physical function that can be translated into an analog or digital signal. The data acquisition probe is coupled to a separate translator whereat the stored analog or digital voltage signals are transferred to the translator to be coupled to a display device for displaying the voltage signals.

Abstract: This disclosure relates to an arc welding system primarily intended to replace present systems utilizing an inert gas atmosphere in which the welding takes place. It is proposed to provide a high voltage, low power ignition supply to produce an arc across a spark gap between electrodes and thus provide an ionized atmosphere in which a welding arc may be produced from a low voltage high power main power source. The main power source may include a capacitor which is constantly charged between actuation of the ignition circuit.

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 a 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: A system for electrodynamic powder coating of conducting and non-conducting substrates using an electrodynamic fluidized bed. The system generally includes a coating applicator means for applying charged particles to the substrate to be coated, and postcharging means for applying to the substrate an additional charge of such polarity as to cause an increase in the electrostatic forces holding the coating particles to the substrate. The system further includes a precharging means for precharging the substrate with a charge of such polarity as to effect more uniform coating of the substrate and a higher rate of coating. Where the substrate to be coated is a continuous web, the system includes a conveying means for conveying the web through the various positions adjacent to the three aforementioned means.

Abstract: An improved child resistant end closure wherein most of the pull tab for an easy opening end is mounted within a bead formed on the end panel which obstructs access to the ring or lift portion of the tab and pevents grasping and lifting it. The tab and/or the end panel are slightly bowed in such manner that the tab upon fastening by the rivet to the end panel is sprung toward the end panel so that the ring portion of the tab is biased toward the panel below the bead. The shape of the bead and the ring or grasping portion provides a digitally operable structure which permits an adult to insert his nail between the tab and external bead to lift the ring while flexing the end panel so that the ring may be further lifted to break free the tab hinge and then break the score defining the openable segment of the end panel, or alternatively the lift portion may be pried up by a tool entered into a slot provided beneath the ring.

Abstract: A simplified heavy-duty press having a bed and a support head mounted from the press bed for limited vertical movement under predetermined spring preload. The entire drive (less motor) and rams are carried from the press head and these components are movable away from the bed when the tools between the ram and bed encounter an obstruction beyond the preload. The preload limits maximum operative force that will be transmitted in the mechanisms where precise control of the components/dimensions may be difficult to maintain because of manufacturing limitations or because of thermal expansion.

Abstract: A propellantless aerosol container wherein an elastic expelling member is sleeved over a flexible product containing member and carried within a rigid container body. Retainers, releasable from without the container, are provided whereby the expelling member may be extended and retained in the extended condition during filling of the container, and later released to provide an expelling force.

Abstract: An apparatus for continuously curing can bodies coated with a photopolymerizable ink. The can bodies are placed onto spindles. The spindles are mounted onto a conveyor chain and pass the can bodies through a first U.V. lamp chamber. The U.V. lamp chamber is oriented to cure first opposed sides of the can bodies. Then the can bodies are carried on the conveyor chain in a different direction, so that as the can bodies pass through the second U.V. lamp chamber second opposed sides of the can bodies are cured. The first and second opposed can body sides are at right angles to each other. After the can body has passed through the first and second U.V. lamp chambers the entire can body exterior has been cured.

Abstract: A plurality of multi-functioning machines are simultaneously controlled by similar transmitter/receiver pairs, one of which is associated with a programmable controller and the other of which is associated with a machine. In the controller terminal, each transmitter of one such pair transmits a series of groups of serial command signals while its receiver receives corresponding groups of serial condition-responsive signals from the machine which update the controller. In the machine terminal, the transmitter of the other pair is connected to the controller receiver and the receiver is connected to the controller transmitter. Each transmitter derives input from a multiplexing matrix and each receiver outputs its information through a demultiplexer matrix. Each transmitter/receiver pair is driven by a free-running clock but the pair associated with the machine is slaved to the controller transmitter.

Abstract: This disclosure relates to a manifold for use in conjunction with a reciprocating die set for controlling air pressure within a sealed die which is closed by a formed shell so as to make certain that the shell remains with the sealed die as it is retracted relative to a die center, the manifold providing for a predetermined vacuum within the sealed die, which vacuum being sufficient to assure retraction of the formed shell with the sealed die but at the same time being maintained sufficiently low so as to prevent damage to the shell during the ejection thereof from the sealed die.

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: Injection blow molding equipment for the production of hollow articles wherein cores are axially inserted in blow molds and blank molds is disclosed. Compact core assemblies and fluid supply systems integral with the platens allow the mold parts to be mounted on the surfaces of opposed, relatively movable platens. Partible neck rings associated with each core open divergently outwardly as the blow mold and core separate, to shorten machine cycle time. A manifold, supplied with cooling fluid from the periphery of a core mounting plate, distributes heat transfer fluid to the core assemblies for cooling the neck rings. In one embodiment, mating blow mold sections are mounted on contra-oscillatable mounting members and are opened and closed by arcuate movement of the mounting members.

Abstract: A pulsed powder application system for electrostatically powder-coating a substrate comprises an applicator bed means, a fluidizing means, and a pulsing means. The pulsing means is actuable during a coating time to effect ionization of electrostatic powder particles so as to cause the establishment of an electric field attracting the particles to the substrate, and actuable during non-coating times to cause the establishment of a reverse electric field attracting the ionized particles away from the substrate. A feeder bed means and an associated fluidizing means are provided for holding the electrostatic powder prior to usage for coating by the applicator bed means.