Abstract: This relates to a container which is formed of a thermoplastic material, preferably PET, wherein the container wall and flanges have a high degree of orientation and the required strength characteristics utilizing a minimum of resin in the formation thereof. An intermediate article of manufacture is formed with this article having a generally bottle-like configuration. The intermediate article of manufacture, which is blow molded from a conventional preform configuration, includes a lower portion in the configuration of the desired container and an upper portion which is an accommodation portion. The accommodation portion is removed from the container and becomes scrap which is reground. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: This relates to the supplying of blow molding gas to a blow molding system. Most particularly, this relates to a blow molding gas supply which includes a low pressure supply and a high pressure supply and wherein the high pressure blowing gas of the molding operation is used to replenish the low pressure supply, thereby eliminating the presently required separate outside supply.

Abstract: This relates to a pallet for carrying and simultaneously presenting to a plurality of blow molds preforms. The pallet includes an elongated bar which has rotatably journalled therein a number of collets and the bar is provided with support and guide rollers which are engageable with opposed channel-shaped track members to guidingly support the pallet for movement along a predetermined path and into the space between one set of blow mold halves. The pallet is provided with drive means for effecting the feeding thereof together with a holding pin to permit the retention thereof in a selected position. Each collet is rotatably journalled within the bar so that it may be rotated to facilitate the even heating of the preforms. The lower end of each collet is provided with ball detent devices which are so associated with a retaining surface on each preform so as to effect a tight, but releasable, holding of the preform within the collet in alignment with the collet.

Abstract: This relates to the assembling of a can end with a can body wherein there is an interference fit between the can end and the can body. There is provided an assembly head which receives in centered relation the can end and squares the can end with respect to its axis and where necessary reforms the peripheral portion of the can end. The can to be assembled with respect to the can end has an upper portion thereof entering into a lower guide portion of the assembly head both to align the can body with the can end and to reform the can body should it be out of round. Telescoping may then be automatically effected between the can end the the can body to complete the assembly. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: A process for improving the organoleptic properties of canned green vegetables wherein vegetables blanched with a highly alkaline solution are suspended in a brine having an alkalinity adjusted to between about 25 to about 75 milliequivalents of hydroxyl ion in a hermetically sealed container internally coated with an organic coating filled with an alkaline earth compound such as MgO, the vegetables being sterilized at 250.degree.-300.degree. F. to an F.sub.o value of at least 6 whereby the original color and flavor of the vegetables are retained.

Abstract: A seal of controlled detachability between a propylene polymer, such as polypropylene, heat sealed to an enamel coated surface comprised of an epoxy resin, an aminoplant resin and an adhesion promoting amount of a carboxylated polypropylene resin, is obtained by incorporating a butene polymer such as polybutene in the enamel coating composition prior to its application to a metal surface.

Abstract: This relates to a radio frequency heating system for heating PET preforms. The system includes two parallel applicator plates or electrodes and the coupling of a radio frequency power supply thereto. Both the radio frequency applicators are isolated from radio frequency oven cavity and are electrically balanced and operated in a push-pull manner so as the net induced currents in the adjacent transport system are maintained to a minimum level and also the electric field strength between either the applicator plate and the transport system is half of that between the applicator plates. It also includes the use of inductors or stubs at specific points to provide for more uniform radio frequency voltage by reducing the voltage standing wave radio.

Abstract: This relates to a loader for loading preforms into collets of pallets in a blow molding machine wherein a plurality of preforms are simultaneously loaded into the blow molding molds during each operation of the machine. The loader includes a preform supply wherein there is a preform receptacle having a number of preform pockets corresponding to the number of preforms to be loaded in a pallet. A preform carrier is moved between a position underlying the preform receptable for receiving preforms therefrom to a position underlying a pallet presented to the loading station. The preform positioning device then engages the bottoms of preforms and moves the preforms up through the preform carrier into the lower end of the collets of pallets where they are automatically retained in place by spring loaded detents. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: A novel pressure holding container formed of thin sheet metal of the order of between 10 and 4 mils wherein the container has a bottom portion and a top portion, the bottom portion having a body and an integral bottom, and in one embodiment having a necked-in upper end of the body which tightly fits into a lip portion of the lower end of the top portion and is adhesively bonded thereto and wherein the upper portion of the top portion has a toro-conical shape which under pressure wants to expand it into a spherical shape and thus through beam loading on the lip portion imposes compressive stresses thereon and holds in compression the adhesive which is interposed between the lip and the annulus of the necked-in portion of the body which is loaded in tension by the internal pressure in the container. In another embodiment of the invention, the body has no necking-in at its upper edge and is of uniform diameter from end to end and is tightly fitted into the lip of the upper portion and adhesively bonded thereto.

Abstract: This relates to an apparatus for injection molding preforms for beverage bottles wherein a minimum cycle time is involved. Cores over which thermoplastic material is injection molded to form preforms for use in the blow molding of bottles are provided in sets and carried by a rotary turret so that as soon as the injection molded thermoplastic material has sufficiently set to permit its transfer with its associated core out of an injection mold cavity, the apparatus may be actuated to remove first injection molded preforms and thereafter immediately present a new set of cores to the injection mold cavities. This provides ample time for the cooling of the preforms so that when removed from the cores they will not be unduly deformed. In accordance with the feasible use of the apparatus, plural preforms, on the order of twenty-four and greater, may be formed with a cycle time on the order of 10-12 seconds.

Abstract: This relates to the forming of a flared neck terminating in an outwardly turned curl on a metal can end. The metal can end is formed with a terminal tubular portion which is cylindrical. Suitable punch and die tooling is provided for backing up the partially formed can end surrounding the tubular portion and forcing the same into cooperating relation with the curl insert, simultaneously to flare the tubular portion and to form on the end of the tubular portion an out-turned curl. The relationship of the tooling is such that the extent of the flared neck thus formed is accurately controlled. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: This relates to the thermoforming of can bodies for use in packaging beverages under pressure from polyester sheet material, preferably PET. In accordance with the invention, a forming gas is applied to the periphery of the clamped sheet portion in radially outwardly spaced relation with respect to an associated mold cavity and the sheet material is billowed up into a large cavity formed in the clamp so as to provide for high stretching and orientation of the peripheral portion of the sheet before the sheet is directed into an associated mold cavity. Further, a plunger which normally forces the billowed or initially stretched sheet into the mold cavity may be constructed so as to be radially expandible to thus positively radially expand the sheet material within the mold.

Abstract: A method of annealing the flanges of double seamed end panels to obtain an effective seal and apparatus therefor.

Abstract: This relates to an unloading mechanism for unloading blow molded articles from collects carried by a pallet. At an unloading station there is provided a plurality of vertically disposed, guided plungers or ejectors which are carried by a common support and which are spaced along the path of a pallet in accordance with the spacing of collects caried by the pallet. A single actuator carries the support for the movement of the support and the plungers in unison, whereby all blow molded articles carried by collets of a pallet are simultaneously unloaded or discharged. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: A container assembly formed of two cup-shaped container halves which are combined with their open end portions in telescoped relation and being secured together by way of a coupling sleeve. The coupling sleeve is internal in the preferred embodiment, but may be external. The overlapped free end portions of the container halves may be disposed immediately adjacent one another, or may be separated by the coupling sleeve. Except when the coupling sleeve is located externally, the raw edge of the free end of the inner free end portion is always protected by the coupling sleeve. The coupling sleeve may have a socket in which one or both of the free end portions is seated. The container halves are formed of metal and the coupling sleeve is formed of a plastics material and bonded to a coating on the metal halves.

Abstract: A closure for a container in which a plastic closure part is tightly fitted into the container neck and a tab-operable disk in which the tab is releasably interlocked with the plastic part. The disk may also be directly mounted within an end portion of a container body and the container body may be provided with a replaceable overcap.

Abstract: A steel sheet container wherein the bottom wall is integral with the body and wherein the container is formed by a drawing operation with there being three drawings of the metal in sequence. Most particularly, the steel sheet has on the opposite surfaces thereof a coating of tin with the surfaces of the steel sheet being very smooth so as to permit the formation of the tin with a matte finish. The finish of the steel sheet should range generally from on the order of 10 microinch minimum to 30 microinch maximum.

Abstract: This relates to a blow molding apparatus wherein in lieu of the mold halves closing on a preform and thereafter the blowing operation initiated, the preform is shifted into one of the mold halves and thereafter advance of the stretch rod into the preform and movement of the blow head to a position closely adjacent the preform is effected before the closing of the mold is completed. Such arrangement permits a reduction in cycle time. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: This relates to the forming of containers and like hollow articles from sheets or webs of thermoplastic material. Two webs or sheets are simultaneously acted upon by way of a forming apparatus which includes a reciprocating clamp first cooperable with one outer platen and then the other in sequence wherein, while a first web or sheet is being formed within a plurality of mold cavities to define a plurality of hollow articles such as containers, the other sheet or web may be stripped from its respective mold set and a new sheet or a new portion of a sheet or web may be advanced into position for molding. The forming apparatus may be constructed in a manner wherein the web portions which are to be formed may be billowed away from the mold cavities as an initial step in the stretching and orientation of the thermoplastic material.