Abstract: This invention relates to inspecting glass containers and other types of containers for defects, such as horizontal checks, in the sidewall thereof. The invention involves both method and apparatus for inspecting for such defects, whereby radiant energy is directed from above to be transmitted through the sidewall as a vertical band or column while the container is rotated. A light-sensitive detector observes the sidewall for reflected light produced by the defect, energizing of the detector creating a reject signal for rejection of flawed containers.

Abstract: A child-resistant closure assembly is disclosed which includes inner and outer cap members in a nested configuration. Leaf spring and ratchet elements are respectively provided on the cap members whereby torque can normally be transmitted from the outer cap member to the inner cap member only in the closure tightening direction. For transmission of torque in the closure removal direction, drive lugs on the inner cap member are engageable in non-concentric apertures formed in the panel of the outer cap member. The drive lugs and apertures are normally maintained axially out of engagement by the leaf springs formed on one of the cap members. When the leaf springs and ratchet elements are transmitting closure tightening torque, the non-concentric apertures are angularly displaced relative to the drive lugs.

Abstract: A short circuit proof driver and alarm circuit for a solenoid actuator in a glassware forming machine is disclosed. Power to the solenoid is switched from a power source by a VMOS enhancement mode power transistor. Under normal operating conditions, the power transistor will be operated in saturation, whereby very little voltage is dropped between the drain and the source. When a short circuit condition occurs in the solenoid or connecting cable, the power transistor will be pulled out of saturation and the amount of voltage drop will become significant. Circuitry is provided for limiting current flow through the power transistor to a value somewhat above the maximum normal load current. The components of the system are selected to operate properly in the short circuit condition, thereby preventing the accidental activation of a solenoid in the glassware forming machine.

Abstract: A child resistant package comprising a container and closure. The container has a side wall, a bottom wall and an open end. The closure includes an outer member and an inner member, the inner member having a portion thereof extending through an opening in the outer member such that axial pressure may be applied through this portion to move the inner member relative to the outer member in an axial direction. A liner insert sealingly engages the upper end of the container. The inner member and the liner have interengaging portions such that when the closure is removed from the container, the liner insert is also removed. A portion of the liner defines a spring between the liner and the inner member to yieldingly urging the inner member axially outwardly toward the outer member. The container has radially resilient portions on the upper end of the side wall, and the outer member includes a peripheral skirt having a rib adapted to engage the radial resilient portions on the container.

Abstract: An apparatus for fabricating a container made of foam sheet material. The apparatus includes a mandrel carrying drum that revolves about its longitudinal axis of symmetry. The drum contains a plurality of individual mandrels in radial alignment. Each mandrel revolves about its longitudinal axis as it forms a cylindrically shaped container blank. The drum carries the mandrels in an arcuate path, thus permitting work to be performed on the container blank as it passes a series of work stations.A method of forming a container from foam sheet material is set forth wherein a severed sheet material is attached to a mandrel. The mandrel rotates about its axis to form a cylindrically shaped blank as the mandrel itself is being moved in an arcuate path. While positioned on the mandrel, the container blank is worked upon at a plurality of work stations, thus producing a final container with an end closure which may be apertured.

Abstract: A combination of a threaded closure and a threaded finish of a cooperating container, with axial venting slots formed through the threaded portions of the closure and finish. The venting slots on the closure and finish are arranged to be axially aligned when the seal between the closure and finish is first broken.

Abstract: Molten glass entering from a refiner is conditioned, in an optimum operation, such that its temperature along the center of the flowing glass just in advance of its entry into the feeder, will be of equal temperature near the surface near the bottom and intermediate these two points. A tri-level thermocouple is positioned along the center line at approximately nine inches from the feeder for monitoring these temperatures, and to serve as an aid to the operator in controlling the actual glass temperature. Positioned at opposite sides of the forehearth, approximately eight inches from the center line, are tri-level thermocouples. The three couples will be positioned at the same relative depths as those at the center line. The center thermocouple on the right side will have its output used as the control temperature for a temperature override circuit connected to the electrodes.

Abstract: A serving tray for use in a food rethermalizing cabinet. The tray is sectioned by a thermal divider and formed so that dishes of food placed therein can be selectively heated or cooled by separate air streams flowing from one end of the tray to the other. The thermal divider extends from one side of the tray to the other separating the tray interior into two channels. Inlet and outlet ports are provided at opposite ends of each channel. Tapered connectors on the sides of the tray are designed to mate with matching tapered sections in the cabinet such that when the tray is firmly seated in the cabinet, a fluid tight seal exists between the mating connector members. The inlet and outlet ports for each channel are precisely aligned with corresponding ports in the cabinet and the tray is supported thereby in the cabinet and cannot be inserted in reverse orientation.

Abstract: There is provided a plural part receptacle assemblage for the storage and handling of bulk quantities of material which assemblage includes a tight-head plastic drum molded as a single article to which is concentrically attached, subsequent to the formation of the drum, handling means so arranged and constructed as to be grippable about substantially the full 360.degree. circumference of the drum with steel drum chime-handling devices for transportation of the assemblage and the bulk quantities of material stored in the drum; preferably the drum or handling means, or both, include means for preventing liquid accumulation between the handling means and drum.

Abstract: A method of making a one-piece container of heat shrinkable thermoplastic foam from sheet stock in which a longitudinally seamed cylindrical sleeve made from such material is placed on a forming mandrel providing the essential shape of the container. An end portion of the sleeve extends cantilever fashion beyond the mandrel. The sleeve is heated to soften it and shrink partially to conformity of the mandrel and shrink to a small elongate tube a fraction of the sleeve's original diameter. The heat softened sleeve is pressed against the bottom end of the mandrel to form a container bottom, and at the same time the other opposite end of the sleeve is upset to form a bead for the container opposite the bottom end.

Abstract: There is disclosed a barium-free Type I, Class B laboratory glass according to the standard specification set forth in ASTM E 438-80a having a linear coefficient of expansion (0.degree. to 300.degree. C., cm/cm-.degree.C..times.10.sup.-7) of about 48 to 56 and having a chemical durability, maximum titration equivalent of: 0.2N H.sub.2 SO.sub.4 /10 g of glass of 1.0 ml, the composition consisting essentially of the following ingredients in approximate percent by weight:______________________________________ Ingredient Percent ______________________________________ SiO.sub.2 70-74 B.sub.2 O.sub.3 9-13 Al.sub.2 O.sub.3 5-8 Na.sub.2 O 5-8 K.sub.2 O 0-4 CaO 0-3 MgO 0-1 ______________________________________the glass composition having an annealing point of about 550.degree. C. to 585.degree. C., a liquidus of about 1730.degree. F. to 1760.degree. F. and a Log n at the liquidus about 5.0 to 5.5.

Abstract: A method of forming a blowback cavity in a vial or similar cylindrical article comprises the steps of providing a cylindrical glass preform having a necked region and first forming an open blowback cavity adjacent the necked region and a relatively thin axially projecting terminal lip on the adjacent end of the preform and subsequently turning the terminal lip inwardly to form a radially extending face defining a mouth opening having a diameter smaller than the diameter of the blowback cavity.

Abstract: A two-piece child-resistant closure comprises nested inner and outer closure members. Sets of lugs on the inner surface of the outer member panel and the outer surface of the inner member panel engage each other when the outer members rotated for application of the closure to a container, but cam past each other on inclined surfaces when the outer closure is rotated in the removal direction. The panel of the outer closure member is resiliently deformable to bring the noncamming surfaces of the lugs into engagement for removal of the closure.

Abstract: A registration control circuit for a printed label cutoff machine controls both the location of the cut by performing a phase adjustment and the length of the individual labels by performing a base speed adjustment. A strip of labels have eyemarks printed thereon for defining the location at which the individual labels are to be cut. An optical scanner is positioned adjacent the labels and generates a scanner pulse upon detection of an eyemark. The control circuit includes a setup control for automatically running the machine into registration from an initial setup position. The setup control functions to generate a reference pulse a predetermined distance before the scanner is expected to see an eyemark. When the eyemark is detected within a designated window area the control utilizes the scanner pulse and the reference pulse to calculate the phase error for each label and generate a phase correction signal proportional to the actual phase error.

Abstract: There is disclosed a thin layer chromatography device comprising a transparent tube, a coating of adsorbent on the inside of the tube to provide a thin chromatography layer, one end of the tube narrowed down to form a neck with a score line thereon for breaking the neck, the other end of the tube being sealed to provide a hermetically sealed chromatography device, there being at least one small opening in the tube near the neck end of the tube for providing means to insert a sample into the tube on the thin chromatography layer and for providing means to form an air vent to the inside of the tube when the neck end is broken and placed in a solvent.

Abstract: The present invention relates to an apparatus and method for generating a comparison signal representing the magnitude difference between two successive video signals representing adjacent inspection points on the container. One of the two video signals is multiplied by a first predetermined value to generate a first product signal. The first product signal and the other one of the two video signals are combined to generate a second product signal having a magnitude representing the ratio between the other one of the two video signals and the first product signal with the first product signal as the denominator. A signal having a second predetermined value is then subtracted from the second product signal to generate the comparison signal. A comparison signal generated in this manner is insensitive to general light variations across the container.

Abstract: Disclosed are copolyesters based on terephthalic or isophthalic acids, or both and at least one of 1,3 bis(2-hydroxyethoxy)benzene and bis(4-.beta.-hydroxyethoxyphenyl) sulfone, which also contain 1,4 bis(2-hydroxyethoxy)benzene as one of the diol reactants in order to prepare solid copolyesters having improved folding endurance or fatigue resistance than the same copolyesters without such coreactant.

Abstract: A package comprising a container and a molded plastic closure. The container neck has external threads formed thereon and an external frustoconical sealing surface formed above said threads and extending upwardly and radially inwardly. The closure comprises a panel and an integral depending annular skirt, the skirt having integral internal threads formed thereon complementary to the threads on the neck of the container. An integral annular side sealing rib extends radially inwardly from the inner surface of the skirt and engages the external frustoconical sealing surface of the container in an interference fit such that when the closure is threaded on the container, the rib is compressed into sealing relation with the external frustoconical sealing surface. The panel portion of the closure includes a portion adapted to engage the end of the neck of the container to form a top seal. The closure includes a flexible annular wall integrally connecting the periphery of the panel and the sealing rib.

Abstract: This invention relates to rigid solid-lubricant composite materials which are extremely heat and wear-resistant and are moldable and thermosetting when molded to shape for handling hot glass articles. The composition is comprised of an organic silicone resin having chopped glass fibers and a finely-ground graphite-containing material therein. The composition may be molded to shape by compression or transfer molding into conveyor parts, for example, for handling newly-formed hot glass articles without marring their surfaces.

Abstract: There is disclosed a thin layer chromatography device comprising a transparent tube having a first open end adapted for sealing with a stopper, a cylindrical member such as a tube or rod having a diameter smaller than the tube and of a length at least about equal to that of the tube, the member adapted to fit concentrically within the tube, the outside surface of the member being adapted to receive a thin layer of adsorbent before assembly of the member inside the tube, a fitting at the first end of the tube, the fitting having an annular portion defining an opening adapted to receive and hold the member when the tube and member are assembled together to provide a hermetically sealed device before use, at least one sample positioning opening in the tube whereby, upon use of the device, a sample can be positioned on the outer surface of the member and whereby air can enter the interior of the tube.