Abstract: A preform for making oriented plastic containers wherein the preform is first formed and thereafter reheated to an orientation temperature range and blown to final container shape comprising an open ended finish part made of a first plastic material, and an elongated main hollow body of orientable strain-hardenable thermoplastic material molded and bonded in situ on the open ended finish. The hollow body includes a main container body forming portion and a bottom container forming portion closing the open end of the main body forming portion. The main body has a portion projecting axially within the open end of the finish terminating in a spaced relationship to the open free end of the finish and interlocked with the finish part.

Abstract: A naturally occurring protein is chemically modified to provide the protein with activity of a selected enzyme. The protein does not contain activity of the selected enzyme before modification. Modification is carried out by partially denaturing the protein, contacting the partially denatured protein with an enzyme inhibitor of the selected enzyme, crosslinking the protein in the presence of the inhibitor and recovering a modified protein having activity of the selected enzyme.

Abstract: A degradable polymer composition having(a) an ethylene-carbon monoxide copolymer only in an amount sufficient to provide a total of substantially about 0.005 to 0.05 percent by weight of CO in the composition; and(b) a low density polyethylene.

Abstract: A naturally occurring protein is chemically modified to provide the protein with activity of a selected enzyme. The protein does not contain activity of the selected enzyme before modification. Modification is carried out by partially denaturing the protein, contacting the partially denatured protein with an immobilized enzyme inhibitor of the selected enzyme, crosslinking the protein in the presence of the inhibitor and recovering a modified protein having activity of the selected enzyme.

Abstract: A naturally occuring protein is chemically modified to provide the protein with activity of a selected enzyme. The protein does not contain activity of the selected enzyme before modification. Modification is preferably carried out by partially denaturing the protein in the presence of an inhibitor for the selected enzyme to form a partially denatured protein-enzyme inhibitor complex, adsorbing the complex to a solid support and crosslinking the adsorbed complex to form an immobilized modified protein having activity of the selected enzyme. Alternatively, the protein may be adsorbed onto the support, partially denatured and crosslinked in the presence of the inhibitor or the protein may be partially denatured, adsorbed on the support and crosslinked in the presence the inhibitor. In another embodiment, the protein has at least three disulphide groups.

Abstract: A hollow transparent delamination resistant heatset multilayer article is disclosed where the article includes at least one barrier layer containing a copolyester formed from terephthalic acid, ethylene glycol and 1,3 bis(2-hydroxyethoxy) benzene directly adhered to at least one layer containing poly(ethylene) terephthalate (PET). The multilayer articles are blowmolded using a heatsetting process. The heatset multilayer articles retain high gas barrier properties, uniform thickness in layers, and desirable mechanical strength properties even after the heatsetting process. Also, the multilayer heatset articles have excellent interlayer adhesion without the need for an adhesive layer, high thermal stability, and remain optically clear after the heatsetting process.

Abstract: An improved single piece plastic carrier for a plurality of filled and capped bottles in which the neck of each bottle to be carried by the carrier is received in an aperture in the top panel of the carrier and is supported by a pair of spaced apart tabs which extend radially inwardly from the aperture. Each such tab has a substantially greater arcuate extent than the tabs utilized in prior art carriers, and each such tab, therefore, is substantially less yieldable than such prior art tabs. The substantially reduced tab yieldability is advantageous in preventing accidental disengagement of the bottle in the aperture from the carrier. Additionally, the carrier is provided with at least a pair of spaced apart centering lugs near each bottle carrying aperture of the carrier, in the juncture between the top panel of the carrier and the side wall thereof.

Abstract: A high barrier heatset intimate fusion blend article is disclosed where the article includes a blend of a high barrier copolyester, formed from terephthalic acid, ethylene glycol and 1,3 bis(2-hydroxyethoxy) benzene, and poly(ethylene terephthalate) (PET). The PET/copolyester blend articles are formed using a blowmolding and heatsetting process to rapidly achieve a high percentage of crystallinity of the PET in the article. The articles have excellent gas barrier and mechanical strength properties, high thermal stability and remain optically clear after heatsetting.

Abstract: A forming station for can end closures which includes a pair of opposed die structures. Apparatus for forming code markings in the can ends as they are processed includes a plurality of arrays of incising pins retained in matrix configurations in the face of one of the opposed die pieces. The ends of predetermined pins in each array are supported above the die surface to form recognizable patterns in the can ends. The indicia being formed can be quickly changed by substituting a new pin support surface configuration.

Abstract: A naturally occurring protein is chemically modified to provide the protein with activity of a selected enzyme. The protein does not contain activity of the selected enzyme before modification. Modification is carried out by grossly denaturing the protein, partially renaturing the protein to form a partially denatured protein, contacting the partially denatured protein with an enzyme inhibitor of the selected enzyme, crosslinking the protein in the presence of the inhibitor and recovering a modified protein having activity of the selected enzyme.

Abstract: Apparatus for wrapping shrinkable plastic labels about bottles as they are moved in a single file. As the bottles exit the wrapping machine, they are resting on a moving belt conveyor which is driven in the direction of a heat shrinking tunnel. In order to have the bottles, with the labels applied, pass through a circulating hot air, infrared tunnel in properly spaced intervals to assure proper shrinkage of the tubular labels, a spacing device in the form of a bottle side-engaging set of brushes is used. The brushes have their bristles extending horizontally across the path of movement of the bottles on the conveyor. The bottles are actually pushed at the speed of the labeling machine through the gap between the brushes and therefore the bottles are released by the brushes at equally spaced time intervals and thus become equally spaced on the moving conveyor belt that carries them to the heat shrink tunnel.

Abstract: A group of degradable polymer compositions including admixtures of ethylene-carbon monoxide copolymer with defined proportions of high density polyethylene, linear low density polyethylene or polypropylene is disclosed. The compositions are useful for forming article carriers, containers, closures, foodtrays and the like, which show excellent mechanical and structural properties and controlled environmental degradability.

Abstract: An all-plastic press-on, twist-off closure for a container having threads in the neck finish is made of a hard plastic shell having a top and a peripheral skirt. A gasket member is provided on the inside of the shell located adjacent the top and the shell skirt. The gasket member has resilient deformable ribs for engaging the threads and the gasket member and the shell skirt are held together against rotation with respect to each other by interlocking spline means on the shell skirt and the gasket member skirt.

Abstract: An accumulator for collecting the outputs of a plurality of sorters in a single layer of oriented closures in a hopper and feeding the closures in single file to a downstream operation station. Bridging patterns of closures in the layer which interrupt flow to the next station are displaced by regulating the internal configuration of the hopper, agitating the layer of closures, conveying closures from the bottom of the layer to the discharge chute, and by impinging the closures with air jets to break up the patterns and urge the closures to the discharge chute.

Abstract: A liquid containing and dispensing package comprising a hollow plastic container having a neck, a fitment interengaging the neck and closure. The fitment interengages the neck and has a first peripheral portion extending axially and having a portion defining a spout having a pouring lip extending axially inwardly of the end of the neck, and a closure comprising a top wall and a first peripheral wall extending from the top wall axially inwardly. The closure includes a radial portion extending from the peripheral wall and sealingly engaging an annular area of the fitment. The closure defines a dispensing cup and includes a second outer peripheral wall spaced from the first peripheral wall which has internal threads engaging external threads on the neck of the container.

Abstract: A cathode ray tube faceplate press having an indexing table rotatable around a column normal to the table and having circular array of female molds concentric with the column. Index speed of the table is optimized by a barrel cam drive cut to provide smooth acceleration and deceleration which can be tolerated by the molten glass in the molds. A cam dwell precisely registers the table work stations avoiding the need for register pins and the delays they introduce. Acceleration and deceleration peak at about the one-eighth and seven-eighths position of the drive cycle following a generally sinusodial form.

Abstract: A tamper indicating closure for a container comprising a threaded cap to which is attached an indicator ring. The indicator ring has a radially inward lower flange that slips into locking engagement with a flange on the neck of the container as the closure is applied to the container. As the closure is removed from the container, the indicator ring is severed along weakened portions so that the lower portion of the indicator ring drops clear of the closure thus providing an indication the closure has been rotated in a direction for its removal from the container.

Abstract: Apparatus and method for inspecting the finish of transparent containers, particularly glass containers, which include facility for directing diffused light energy laterally through the container finish as the container is rotated about its central axis. A camera includes a plurality of light sensitive elements disposed in a linear array angulated with respect to the container axis to view the external and internal finish wall surfaces, the latter through the open container mouth. Individual elements of the camera linear array are sampled by an information processor at increments of container rotation, and corresponding data indicative of light intensity at each element is stored in an array memory as a combined function of element number and scan increment. Such data is compared following completion of container rotation to standard data indicative of acceptable container finish, and a reject signal is generated if such comparison exceeds an operator adjustable threshold.

Abstract: A tamper indicating hermetically sealed package comprising a container having a neck with an opening and a closure. The container includes a first annular bead at the upper end adjacent the opening and a second annular bead spaced axially from the first annular bead and having a greater diameter than the first bead. The closure is made of plastic and comprises a base wall and a peripheral skirt. The base wall includes an annular bead on the internal surface thereof and the peripheral skirt includes an interrupted annular bead spaced axially from the base wall. A sealing gasket is cast in situ in the channel defined by the annular bead on the base wall and the peripheral skirt and extends to the interrupted annular bead on the skirt. A tamper indicating band is connected along a weakened line to the peripheral skirt and includes an interrupted annular bead that is adapted to engage the second bead on the container.

Abstract: In the application of a solvent to a plastic label carried on the surface of a vacuum drum, the solvent for the plastic label is transferred from a gravure roll to the label at finite areas on the label so that the label can adhere to the bottle to be labeled and to itself to form a complete sleeve label. The gravure roll is supplied from a fountain that is held against the roll under a spring force. The fountain is in the form of a plastic block which has a face that has several undercut channels in one of which the solvent is supplied and with the others acting as doctor channels to carry away any excess solvent from the roll surface.The fountain block is held by a vertical support plate that, in turn, is held to the surface of a vertical mounting plate by a quick release toggle clamp.