Abstract: A child-resistant, safety closure for a container having a dispensing end including a threaded neck portion onto which the closure is adapted to be threadably assembled. The closure is of the type having an annular sidewall section having a flexible distal end portion provided with at least one interlocking member adapted to interlockingly engage at least one complementary interlocking member on the dispensing end of the container in such manner that interlocking engagement is achieved when the closure is in a fully closed position on the container neck portion. Removal of the closure requires manual compression of the sidewall at locations straddling the interlocking members coupled with concurrent retrogressive turning movement of the closure. An additive safety feature embodies providing a secondary interlocking engagement when the closure is partially removed.

Abstract: An improvement is provided in packages in which a thermoplastic bottle has a separate support base integrally and securely attached thereto for supporting the bottle in an upright position. The bottle includes a convex bottom portion incapable of supporting the bottle in a stable upright position and a peripheral sidewall above the bottom portion. The support base includes a lower package support surface and a generally tubular sidewall extending upwardly from the support surface to telescopically enclose a portion of the bottle peripheral sidewall. The specifically disclosed improvement essentially resides in providing a pre-decorated tubular label of either a closed cellular thermoplastic or a clear thermoplastic film in heat shrunk snug substantially contaminant precluding, peripheral engagement with externally exposed surfaces of the bottle peripheral sidewall and the tubular sidewall of the base and covering the juncture of the base and the bottle.

Abstract: A method and apparatus for molding an end portion of a tubular thermoplastic parison prior to a blow molding operation to form a parision finish and an annular support flange. The method includes closing a laterally movable, sectional mold onto a circumferential section of a parison so that at least one end portion of the parison extends out of the mold. The extending end portion of the parison is then thermally conditioned to a deformable temperature and thereafter the parison is axially displaced to telescopically insert the thermally conditioned end portion within the mold into general radial alignment with annular, longitudinally spaced finish and support flange cavities.

Abstract: A method of and apparatus for making a concave bottom on a blown thermoplastic container, and a container having such a bottom. A blowable pre-form is initially expanded against a composite mold surface defined by the end faces of a plurality of concentric tubes surrounding a central actuating rod. The rod and the tubes are initially telescopically positioned to define a composite concave surface, so that a first convex bottom is blown. Subsequently, the rod and tubes are actuated telescopically to progressively invert the convex bottom to a concave shape. The end faces of the tubes may be grooved to define reinforcing ribs in the concave bottom wall, if desired.The container has a concave bottom wall of improved resistance to deformation under internal pressure. This is accomplished by forming a support ring at the juncture of a pair of oppositely directed inner and outer bottom walls, the juncture of the walls defining an included angle which is equal to or less than 90.degree.

Abstract: A method and apparatus are disclosed for molding plastic articles, wherein the method includes the steps of filling a mold cavity at a first station with heated flowable plastic material under relatively low pressure from a first pressure source and then displacing the mold to a second station where the plastic material is cooled under pressure from a second pressure source. During the displacing step, the mold is conveyed along an arcuate path and the mold orientation is maintained. The apparatus includes a cantilevered core pin concentrically positioned in the mold cavity and a set of radially biased neck rings which preferably open automatically under a constant biasing force to release the neck of a molded article after the core pin is withdrawn from the article.

Abstract: A container component with a wall section having means imparting a predefined and selectively weakened fracturable zone therein for conveniently opening the wall section in response to manually exerted force. The selectively weakened fracturable zone is provided by means of a pair of laterally interspaced channels defined in oppositely facing major sides of the wall section and which cooperate to define a fracturable partition, or bridge-wall, therebetween which extends between the oppositely facing major sides of the wall section. The channels further cooperate to impart a predefined lateral path of weakness extending therebetween through the partition. In response to manually applied force, the partition is adapted to fracture along the predefined lateral path of weakness and separate into a pair of overlapping ledges; one of which residually remains in accompaniment with each one of the resultant, residual free edges of the separated portions of the fractured wall section.

Abstract: A method is disclosed for reinforcing bottles with a tubular netting embedded in an exterior surface of the bottle. A tubular netting section is initially compressed in an axial direction to increase its diameter. The compressed netting is positioned over a preformed parison of a thermoplastic material. The compressed netting is then released to re-expand axially and contract diametrically, until the netting contacts the parison. The parison is finally transferred to a blow mold and blown into a finished bottle. During the blowing operation, the netting is embedded into and reinforces the walls of the blown bottle. Depending upon the materials from which the netting and bottle are formed, the netting may also weld to the bottle wall to further increase the strength of the bottle.

Abstract: In apparatus for molding glass into hollow-shaped articles such as glass containers, glass charges are delivered to a parison mold wherein the glass is shaped either by a plunger or by a counterblow within the parison mold. The charge of glass that is delivered to the parison mold is guided into the mold by a superimposed funnel. The funnel is alternately moved into and out of position at the open, upper end of the parison mold to effect the guiding of the charge. The mechanism for moving the funnel on a conventional I.S. machine must be capable of moving the funnel from an upper, radially displaced position, to a lower, seated position concentric with the mold. The operation of the funnel seating motion is accomplished by the use of a generally reciprocable, fluid-operated motor in which a funnel-carrying arm is fixed to the piston rod of the motor and the rod is turned about its vertical axis during its upward and downward movement.

Abstract: An improved apparatus for the transfer of mold rings in a centrifugal casting process. One type of forming process for the funnel portions of color television picture tube envelopes utilizes a centrifugal casting process for the glass. This process requires a main mold body. An indexing mechanism moves from a station at which the mold ring is deposited on the main mold to a station where the mold ring is removed from the main mold after completion of the casting process. A movable shuttle member is connected to pivotally mounted pairs of support fingers for the mold rings through connecting rods. An external drive motor operates a single actuator at each machine cycle. This single actuator causes the entire shuttle to shift and a mold ring to be deposited at one station and a second mold ring to be simultaneously picked up at another station. Because of the mechanical linkage design, one pair of support fingers always opens while all the others close when the single actuator is operated.

Abstract: There is disclosed an improved gaseous discharge display panel device and process of manufacturing same. A large number of cathode substrate electrode and mask structures are printed and fired on a single glass sheet, the electrodes being printed first and dried/cured at a higher temperature than subsequently applied mask and electrical crossovers, which are cured at lower temperatures. Upon completion of fabrication of the electrode and dielectric mask structures and crossover connections, the glass plate is simply scored and separated to provide individual back substrate and electrode mask structures which are then assembled with a like formed anode plate structure. Individual devices are then assembled with use of a seal rod preformed to have a gap in the seal structure and a laser facturable mercury dispensing giver.

Abstract: An automatically operable article transfer apparatus for successively picking up and transporting articles, such as the funnel components of cathode-ray tube assemblies, from a loading station to an article unloading station, and which during the course of transport of such articles is operable to effect a precise transpositional reorientation of each of the articles including pivoting or tilting the article, rotating the article and raising or lowering the article during such transport in such manner that all of such transpositional and reorientational movements are adjustably and cooperatively coordinateable to present the article in an adjustably preselectable and precisely predictable reoriented position at the work unloading station and which is further characterized by being designed to permit such orientational adjustability to be carried out to selectively vary the positional and orientational characteristics of the transfer apparatus at the work unloading station without disturbing the positional or

Abstract: An improvement is provided in methods for forming glass articles which methods are of the type wherein hot formable glass is first formed into a parison, or blank, in a parison or a blank mold and then the parison, or blank, is formed into the final glass article in a blow mold and wherein there is no relative rotation of the glass and the respective molds in the forming operation; the improvement resides in providing the cavity-defining surface of the blank mold with a layer, or coating, of a solid film lubricant or glass release agent which essentially comprises a non-colloidal lubricating graphite dispersed in a thermoset, cured, hard organopolysiloxane binder. The layer, or coating, is formed by applying a dispersion of graphite in an organic solvent solution of a further-curable, thermosettable, solvent soluble, organopolysiloxane onto the cavity defining surface of the blank mold and then curing said organopolysiloxane to a thermoset hard condition.

Abstract: This disclosure relates to both a method and apparatus for forming injection molded articles in a molding assembly which includes a heated runner housing adjacent a cooled mold. In a first disclosed embodiment, a slidable gate valve having a supply passageway is interposed between and in contact with both the cooled mold and heated runner. A layer of insulation material is included on the slidable gate valve to thermally segregate the differential temperature zones of the mold and runner. In a second embodiment, an axially reciprocable pin valve selectively opens and closes a passageway between a heated runner housing and a cooled mold to regulate the flow of plastic material. An annular sleeve of insulation material is telescoped over a portion of the pin valve to likewise thermally segregate the runner and mold.

Abstract: There is disclosed a novel degradable plastic composition consisting of an organic polymeric material, said material having dispersed therein at least one organic derivative of a transition metal and at least one readily autoxidizable organic material.

Abstract: Improvements are provided in glass forming processes of the type wherein hot metal blank molds are employed by using the complementary action of a solid film lubricant layer, of graphite dispersed in a cured thermoset organopolysiloxane, along with an overspray of a lubricating oil.

Abstract: The several embodiments of a recuperator structure herein defines a matrix consisting of a multiplicity of elongated hollow tubes and solid rods formed of a glass ceramic material that is thermally crystallizable to a low expansion glass-ceramic. In one embodiment, each of the tubes is sealed at each end and contains an expansible fluid medium. Each of the tubes has a portion intermediate the ends thereof which is substantially straight. Pluralities of the multiplicity of tubes are tightly packed into a first plurality of layers with the axes of the intermediate portions of the tubes in each layer essentially parallel to each other. The first plurality of layers are arranged with the straight intermediate tube portions thereof in a stacked array with respect to each other, and with the axes of the intermediate portions of the tubes in each layer essentially parallel to the axes of the corresponding intermediate tube portions in the other first plurality of layers.

Abstract: A method of removing undesirable gaseous inclusions also known as seeds and bubbles, from seed containing unrefined molten glass by introducing this unrefined molten glass into a rapidly rotating contained glass mass, subjecting the unrefined molten glass mass to centrifugal forces substantially greater than gravity and developing static pressure differences in the glass mass resulting in pressure gradients in the molten glass and causing the gaseous inclusions to migrate to areas of lower static pressure and to the atmosphere from the molten glass. The introduced stream of unrefined molten glass is directed by a plurality of diverters into many paths, downwardly and outwardly toward the chamber wall, to provide a favorable force on the entrapped inclusions to increase both number and sizes of inclusions removed from the molten glass, and delivering refined molten glass from the contained glass mass, having reduced numbers and sizes of gaseous inclusions.