Abstract: This relates to an apparatus for blow molding from preforms hollow articles, particularly beverage bottles, at a high production rate. The apparatus incorporates a clamp assembly which receives therein carriers containing a number of preforms arranged in a line and wherein there are two mold units, one on each side of a central longitudinally elongated clamp member which is mounted for transverse reciprocatory movement. When the clamp member is positioned to close one mold unit, it operates to open the other mold unit so that while preforms in the closed mold unit are being blow molded, the other mold unit is open and may have the carrier supporting previously blow molded articles displaced therefrom and replaced by a carrier containing a new set of preforms whereby, when the blow molding operation of the one mold unit is completed, the other mold unit is ready for closing and a blow molding operation.

Abstract: This relates to a neck structure on a domed container end for receiving a thermoplastic material closure. It particularly relates to containers having very thin walls on the order of 6-9 mils and wherein the container is formed of a metal having a grain which generally defines a fold line. In order to avoid undue deformation of the lower part of the usual ring which receives the closure body, the domed end immediately adjacent an encircling ring is provided with an upstanding bead which is shock absorbent and functions resiliently to reinforce the lower part of the ring and to restore it to its original configuration after the body of the closure has been pressed through the ring.

Abstract: This relates to a blow molding system wherein a plurality of preforms are simultaneously blow molded within a mold set with the preforms being carried by one or more carriers which move first to a loading station to receive preforms, then through an oven to heat the preforms, then into a mold set wherein the plural preforms are simultaneously blow molded, then to an ejection station where the blow molded articles are discharged, and finally back to the loading station. There are two mold sets which are part of a clamp which operates sequentially to open and close each mold set with one mold set being closed as the other mold set is being opened. The carriers may travel either in a single continuous path for sequentially positioning at first one mold set and then the other, or there may be two continuous circuits for the carriers in which event the two mold sets of the clamp may be different.

Abstract: A closure for a container having a lever-openable plug wherein the lever is attached to other parts of the closure by a frangible member which must be broken to permit actuation of the lever to open the plug, thus indicating to a subsequent observer that either the closure had been open or an attempt had been made to do so.

Abstract: A cathode for a power module of the type including a consumable electrode. The cathode includes a face plate and a back plate with the face plate having a face surface defined by a plurality of horizontal ribs separated by grooves which function to present an electrolyte under controlled flow conditions to the inner face between the cathode and the anode. The rear surface of the face plate has electrolyte inlet and outlet passages therein extending generally at right angles to the grooves and opening into the grooves in the form of metering slots. The back plate is constructed for communication with inlet and outlet manifolds and provides inlet and outlet passages aligned with like passages in the face plate to effect a constant supply of electrolyte for circulation along the face surface of the face plate, as well as an ample outlet and return arrangement.

Abstract: This relates to a transfer apparatus for transferring labels from a label stack into the cavity of a moving mold half. The transfer device includes a pivotally mounted arm which has mounted on its free end a transfer head which swings about the arm so that for a limited movement of the arm there can be a much greater movement of the transfer head. Thus, the transfer head may rapidly enter and rapidly depart from a mold cavity so that a label may be seated in the mold cavity very quickly without requiring any slowdown of the movement of the mold half. The transfer head is provided with vacuum heads which operate to effect a peeling of a label from its associated stack beginning along one edge portion of the label so as to assure that only a single label is picked up from the stack.

Abstract: A container closure having a lever tethered to a plug and the plug being tethered to the pouring neck, the tether between the plug and neck being formed as part of a retainer hinge which interlocks with a cooperative pin mounted to the neck.

Abstract: This disclosure relates to a hold down mechanism which is particularly adapted to apply a preselected hold down pressure on an element. It employs a bar which is pivotally mounted on a support member with the bar having a hold down surface thereon so positioned that when the bar is pivoted in a selected direction the hold down surface will engage the element in clamping relation and further pivoting of the bar in the same direction will result in the shifting of the pivot point for the bar from the pivot member to the hold down surface. The pivot member is spring loaded for lifting movement at this time with an associated spring pack providing for a controlled loading by the hold down surface against the element. A movable cam member having a wedge shaped lower end moves between a cam follower carried by the arm and a fixed cam follower to effect the controlled pivoting of the bar.

Abstract: This relates to a transfer device for transferring labels from a stack into mold cavities without modifying the operation of the existing molding machine. The transfer device includes a pivotally mounted arm which is positioned and pivoted by a linear drive shaft positioned by a cam carried by an associated mold half. The transfer head is mounted on the arm for pivoting about the arm by way of an actuator which includes drive pulleys coupled by drive belts. The transfer head includes vacuum heads, one of which has associated with a suction cup thereof bellows for retracting the suction cup after the suction cup has sealed with the label to initiate peeling of the label from the stack. The suction cup is guidingly mounted so as to maintain its orientation at all times.

Abstract: A paint can having a curl about its upper open end, the curl being fabricated at diametrically spaced areas to provide means for attachment of a bail.

Abstract: A closure for a container having a small diameter neck at the upper end of a generally frusto-conical upper end portion of the body of the container, the neck being formed as a curl and providing a pour opening which is closed by a thin sheet metal plug having a cylindrical wall closed at its lower end by a radial wall, both walls being expanded to underlap the lower edge of the neck, the upper end of said cylindrical wall being curled outwardly against a sealing agent on the upper end of the neck curl. The radial wall, the cylindrical wall and the curl portion are scored to form a tear strip which is connected to a tab which overhangs the body portion of the container and is operative upon being upwardly pulled to tear the tear strip and thus rip open the closure for easy removal.

Abstract: A closure particularly intended for sealing containers having products packed therein under high vacuum wherein the vacuum retains the closure in place and a very high lifting or prying force is required to unseat the closure from the container to effect the removal thereof. The closure is provided with a supporting band which is interlocked with the shall of the closure and which supporting band has integrally formed as a part thereof a lever which is engageable with a shoulder on an associated container to effect the necessary lifting or prying action. The lever and associated supporting band are preferably injection molded of plastic material and may either be mechanically interlocked with the closure shell or molded in situ relative thereto. There are also suitable tamper indicating means.

Abstract: A magnetic conveyor for transferring units, capable of being magnetized, from a first moving conveyor along a path to a second moving conveyor wherein the first and second conveyors are positioned at different elevations. The magnetic conveyor includes a conveyor element positioned relative to the first and second conveyors for carrying the units along the path therebetween, drive mechanism being connected to the conveyor element for imparting relative movement thereof, respective entrance and exit guides for transferring the units from the first conveyor to the conveyor element and therefrom to the second conveyor, and a magnetic support engagably underlying a portion of the conveyor element for providing support thereto and magnetically retaining units being conveyed along the path from the first conveyor to the second conveyor.

Abstract: A scoring tool combination wherein the score anvil is provided with a pair of transversely spaced generally rounded material compressing ribs disposed on opposite sides of the scoring rib of the score tool. The material compressing ribs compress the material of the sheet being scored on opposite sides of the score so as to strengthen the sheet and thus permit deeper scoring and lesser score residuals without failure due to cracking. The material compressing ribs also control coating damage and exposed metal areas.

Abstract: A closure for packaging products in a container under pressure conditions other than atmospheric. "Doming" or depression of the central panel portion of the closure end wall is prevented by a rib reinforcement.

Abstract: This relates to a powder applicator for applying a coating stripe in powder form to inside seams of can bodies. The powder applicator is particularly adapted to be utilized in conjunction with welding apparatus for welding the side seams of can bodies and wherein the diameters of the can bodies are too small to permit the provision of the customary excess powder return duct. The powder applicator is located at the 12:00 o'clock position and thus the excess powder will not merely fall out of the applicator. Accordingly, there is provided a channel defined by a porous block having air or gas circulated therethrough and wherein the terminal end of the channel is closed by a deflector block which will deflect any excess powder out of the applicator into an overlying hood which is primarily intended to take away powder overspray which normally occurs between adjacent, but spaced, can bodies.

Abstract: This relates to an aerosol container of the type wherein the product is maintained separate from the propellant in a product bag. The propellant is placed into the container around the product bag through an opening in the top of the container, which opening is normally closed by a valve cup. The neck of the product bag is so positioned when the product bag is seated on the container that an annular flange thereof is vertically spaced over an associated container flange so that propellant may flow into the container without holding either the annular flange or the valve cup in an elevated position. The neck is resiliently deformable so that the valve cup may be first positioned on the container and bonded to the annular flange, after which, when the valve cup is released, the neck will axially extend to lift the valve cup to an out-of-the-way position to permit propellant charging.