Abstract: A pressure-sensitive adhesive tape having a layer of thermoplastic resin wherein the substrate is provided with a plurality of perforations through its thickness wherein each perforation is surrounded by a burr which is substantially flattened is provided. One useful example of the film is a pressure-sensitive adhesive tape having a layer of pressure-sensitive adhesive.There is also provided a process for producing a film comprising the steps of:Step (A): press protrusions provided on a surface of a roller against a substrate comprising a layer of thermoplastic resin to open a plurality of perforations in the substrate; andStep (B): subjecting the substrate, obtained by Step (A), which has a plurality of perforations to a heat treatment while pressing. The process may have a further step of applying a pressure-sensitive adhesive to at least one surface of the substrate obtained in Step (B).

Abstract: Apparatus for the continuous heating and melting of a solid mixed waste bearing radioactive and hazardous materials to form separate metallic, slag and gaseous phases for producing compact forms of the waste material to facilitate disposal includes a copper split water-cooled (cold) crucible as a reaction vessel for receiving the waste material. The waste material is heated by means of the combination oaf plasma torch directed into the open upper portion of the cold crucible and an electromagnetic flux produced by induction coils disposed about the crucible which is transparent to electromagnetic fields. A metallic phase of the waste material is formed in a lower portion of the crucible and is removed in the form of a compact ingot suitable for recycling and further processing. A glass-like, non-metallic slag phase containing radioactive elements is also formed in the crucible and flows out of the open upper portion of the crucible into a slag ingot mold for disposal.

Abstract: Apparatus for the continuous heating and melting of a solid mixed waste bearing radioactive and hazardous materials to form separate metallic, slag and gaseous phases for producing compact forms of the waste material to facilitate disposal includes a copper split water-cooled (cold) crucible as a reaction vessel for receiving the waste material. The waste material is heated by means of the combination of a plasma torch directed into the open upper portion of the cold crucible and an electromagnetic flux produced by induction coils disposed about the crucible which is transparent to electromagnetic fields. A metallic phase of the waste material is formed in a lower portion of the crucible and is removed in the form of a compact ingot suitable for recycling and further processing. A glass-like, non-metallic slag phase containing radioactive elements is also formed in the crucible and flows out of the open upper portion of the crucible into a slag ingot mold for disposal.

Abstract: A container includes a receptacle portion and a lid, butt ends thereof being hingeably connected one to the other; one or more resiliently mounted teeth are formed which extend upwardly from a forward end of the receptacle portion, and which include a body portion with a recess extending therethrough; a plurality of laterally spaced apart protrusions are provided and extend inwardly from a forward end of the lid, such that on the lid being hinged over the receptacle portion, the protrusions contact and move over the resiliently mounted teeth, so as to releasably engage within the recesses and so as to releasably lock the receptacle portion and lid together.

Abstract: An integral double wall hopper for handling, storing and dispensing dry flowables such as capsules, tablets, and powders in the pharmaceutical industry, comprises an outer shell having a bottom wall and four walls extending upwardly from the bottom wall, an inner shell having a frustoconical bottom wall and four walls extending upwardly from the frustoconical bottom wall, a lip along the upper edges of the upwardly extending walls connecting the outer shell to the inner shell, four downwardly extending legs formed in the bottom wall of the outer shell forming supporting members for the hopper, a discharge opening molded in the center of the frustoconical bottom wall of the inner shell and in the bottom wall of the outer shell, and a closure member positioned on the discharge opening for opening and closing the discharge opening to dispense the contents of the hopper when desired.

Abstract: The present invention is directed to a method and apparatus for extrusion blow molding polyethylene terephthalate articles. Articles produced according to this invention may be monolayer or multilayer; they may be circumferentially or biaxially oriented; and they may be heat set.

Abstract: A two-piece plastic container for handling and storing large quantities of bulk material such as food products comprises a unitary molded plastic liquid-tight single wall tank having a bottom wall and four upwardly extending side walls, and a replaceable pallet base mounted to the tank for supporting the tank and for providing spaces for entry of tines of a forklift truck or a pallet jack. The container is provided with gussets at the top of the walls of the container that support the lip, and is also provided with corner nesting stops located at each corner of the upper end of the container to facilitate nesting of containers. A lid fits over the container lip and has a skirt that is blended inwardly towards the lip so as not to catch on a lip or lid of an adjacent container. The lid also has recesses in its top surface that facilitate the stacking of containers.

Abstract: The present invention is directed to a method and apparatus for extrusion blow molding polyethylene terephthalate articles. Articles produced according to this invention may be monolayer or multilayer; they may be circumferentially or biaxially oriented; and they may be heat set.

Abstract: A method of making a hollow polyethylene terephthalate (PET) blow molded article with an integral external projection such as a handle. The method includes blow molding the hollow article and then injection molding the integral projection.

Abstract: An apparatus for making a hollow polyethylene terephthalate (PET) blow molded article with an integral external projection such as handle. The method includes blow molding the hollow article and then injection molding the integral projection. The apparatus includes a combination blow mold and injection mold, a mechanism for opening and closing the combination mold, a mechanism for inserting an unblown preform into the mold, a blow gas injection mechanism for blowing the preform, and an injection nozzle for injection molding the integral projection.

Abstract: A method and apparatus for making a hollow blow molded article with an integral external projection such as a handle thereon. The method includes blow molding the hollow article and then injection molding the integral projection thereon. The apparatus includes a combination mold having separate and independent blow mold and injection mold cavities which communicate at an interface therebetween. In a preferred embodiment, the blow molded article with integral handle is polyethlene terephthalate (PET).

Abstract: The present invention is directed to an apparatus for extrusion blow molding polyethylene terephthalate articles. Articles produced according to this invention may be monolayer or multilayer; they may be circumferentially or biaxially oriented; and they may be heat set.

Abstract: An integral double wall hopper adapted for use in the manufacturing of pharmaceutical tablets comprises an outer shell which forms outer walls, four legs and two runners, and an inner shell which forms inner walls, and has a frustoconical lower portion with a discharge opening molded in the bottom of the frustoconical lower portion. A detachable iris valve is positioned on the discharge opening for opening and closing the discharge opening to dispense the contents of the hopper when desired. The runners allow the tines of a forklift to pick up the hopper from the side without damaging the discharge opening or the detachable iris valve. The hopper includes a cover which has a manway formed therein, a lid for the manway, and a plurality of towers formed on the cover for protecting the manway of a lower stacked hopper and detachable iris of an upper stacked hopper from being damaged by the tines of a forklift when the hoppers are moved.

Abstract: A container for handling and storing large quantities of bulk material such as food products, comprises a unitary molded plastic liquid-tight single wall tank or tub having a bottom and four upwardly extending walls, corner nesting stops located at each corner at the upper end of the container, a lip along the upper edges of the walls, and gussets at the top of the walls supporting the lip. A lid fits over the container lip and has a skirt that is blended inwardly toward the lip so as not to catch on a lip or lid of an adjacent container.

Abstract: A plastic tank for handling and storing large quantities of bulk material such as cucumbers in brine comprises a molded plastic tank having a bottom and four upwardly extending walls, a lip along the upper edges of the four walls, the walls including corner nesting stops for facilitating nesting and unnesting of the tank in a similar tank by limiting the distance an upper nesting tank extends into a lower nesting tank, the walls further including gussets extending from the walls of the tank to the outer portion of the lip for supporting the lip at the top of the four walls and for guiding a tank being lowered next to an adjacent tank into proper position, an interference ear at each of the lower corners of the tank to protect against tanks jamming together when nesting, the bottom of the tank including three parallel downwardly extending, hollow runners forming support members for the tank, the runners extending across the bottom of the tank, spaces formed at the ends of the runners for entry of tines of a fo

Abstract: A barrel for holding, handling, or storing large quantities of bulk material such as meat and other food products features a seamless, one-piece plastic construction with integrally formed recessed handles for lifting or moving the barrel and integrally formed gussets to strengthen the barrel, and with nesting stop surfaces for nesting empty barrels, and with stacking surfaces and a lid for stacking filled barrels.

Abstract: The invention defines a plastics disposable, hand applied medical retractor for retracting flesh at the edges of an incision or aperture in the human or animal body. At one end the retractor has a sharply inturned hook portion on the end of which are short, sharp, triangular teeth for impaling the flesh. The retractor bows upwardly from the hook portion and back down to a pad which has an adhesive undersurface so that it can be pressed directly to the skin so as to anchor thereto to keep the pulled back flesh in the retracted position. The said bowing allows the pulled back flesh to bunch upwardly to prevent such flesh from forcing the teeth out of engagement with the flesh and also provides inherent springiness tension in the retractor when it is applied improving its performance. Instead of the pad having adhesive it may have one part touch and close fastener, the other part being previously applied to the skin by pressure sensitive adhesive.

Abstract: A tilt truck which comprises a double-walled integral tank and frame of one-piece construction having an open top with a tilt front wall connected to a back wall by a pair of side walls and having a bottom wall connected to the bottom portion of the front, back and side walls, wherein the front wall slants away from the bottom wall, a rocker base is formed in the bottom portion of the front wall, push-pull and tilt hand holes are molded into back wall, and the tilt truck is rust proof, easily cleaned, easily handled and light in weight.

Abstract: A sleeve for use in the treatment of textile threads and yarns including dyeing having a shell wherein the shell comprises peripherally extending spaced apart rings which are elastically yielding in the axial direction of the shell and spaced-apart webs which are elastically yielding in the axial direction of the shell, connecting the rings, the axially consecutive webs being laterally offset relative to each other whereby when the rings and webs are yielding, the rings become serpentine and the webs become bowed, at least selected ones of the webs being adapted to bow in a selected common direction generally circumferential with respect to the sleeve to ensure substantially uniform displacement of the sleeve members, thus to provide a sleeve having minimum restriction for passage of dye and which sleeve is substantially rigid in yielded or non-yielded state.