Abstract: A process for the manufacture of a hot-melt, pressure-sensitive adhesive substance with surfces that are not sticky or self-adhesive, which includes casting such a substance in a mold that has been previously coated with a protective web created by spinning a hot-melt, non-pressure-sensitive adhesive and of protecting the surface of the casting with a similar web. For this purpose, fiberization nozzles are advantageously employed. These protective webs are very resistant and, since they participate in the solidity of the block, they make possible the flexible packaging of adhesives with a low mass mechanical strength.

Abstract: A process for making an all-plastic rod end to enable an articulated linking of two members. The process includes providing first and second split bearing raceway members each of which defines one-half of an annular bearing raceway and a stem having an open ended semi-cylindrical recess. A spherical ball dimensioned to fit in the annular bearing raceway also is provided. The spherical ball is placed into the first split bearing raceway member, and the second split bearing raceway member is placed over the first split bearing raceway member to define a complete annular bearing raceway that encases the ball. The process continues by molding a plastic housing around the split bearing raceway members but spaced from the spherical ball to enable free movement of the spherical ball therein.

Abstract: A method for producing intaglio designs in cast acrylic material, wherein a moulding tool hotter than 600.degree. C. is applied to a surface contact area of an acrylic surface in which the intaglio copy of the moulding tool is to be formed, and the moulding tool is withdrawn from the surface contact area before the temperature of the tool or the acrylic material of said area falls below that at which methyl methacrylate vapor ceases to be produced by the depolymerization of the acrylic material. The preferred withdrawal temperature is above 250.degree. C.

Abstract: A container is manufactured by placing a length of extruded thermoplastic tubing over a mandrel so that an end of the tubing extends beyond the mandrel to form an annular rim and placing a thermoplastic slug on the mandrel within the rim. An ultrasonic resonating horn is provided having a cavity adapted to receive the rim. The horn cavity has a base and an annular tapered portion formed around the base and engageable with the rim. The tubing and the resonating horn are pressed together with a relatively moderate force so that the tapered portion of the horn cavity engages the rim of the tubing and softens and folds it inwardly in such a manner that it is in alignment with the slug, the mandrel, and the base of the cavity. The mandrel and the resonating horn are then brought together with a relatively large force to squeeze the folded rim and the slug tightly together between the mandrel and the base of the cavity.

Abstract: A method of shaping an extruded section of polymer directly onto the surface edges of a glazing or glass plate. In one embodiment, a rotatable plate member having a plurality of calibrated die cross sections is placed in front of the exit orifice of an extrusion die. The plate member is rotated to obtain, an extruded section having different profile cross sections and the flow rate of the polymer through the die is controlled in response to the position of the plate member so that the amount of polymer being fed corresponds to the respective profile section being extruded. In another embodiment, an obturating slide member is placed in front of an extrusion die exit orifice sized to correspond to the largest desired profile cross section. To produce abrupt changes in profile cross section, the slide is moved quickly at predetermined locations along the path of the extrusion die. To produce a continuous transition between profile sections, the slide is moved slowly during extrusion.

Abstract: Method of installing an insert in a plastics body so as to provide a screw thread therein, the insert being of metal and formed with the screw thread, and in which the hole in the plastic which receives the insert is sealed, by providing the insert with an `O` ring located in an external peripheral groove and projecting therefrom, the size and shape of the insert and hole being related and selected so that in axial displacement of the insert into the preformed hole accompanied by softening of the plastic caused by the fastener being preheated or by vibrations applied to the plastic via the fastener as it is inserted, the `O` ring only comes into contact with unsoftened plastic and only comes into contact with plastic towards the end of the axial installation movement. This ensures a good seal between the `O` ring and the plastic.

Abstract: Methods for applying coverings to surfaces by casting at least a portion of the covering in a mould from a solidifiable liquid mix. The mould may be applied directly to the surface or to an already cast layer of the covering. In another embodiment an outer portion of the covering is cast in a mould and is affixed to the surface, or to an already cast layer of the covering, so as to define a void between the outer portion and the surface or already cast layer. The void is filled with solidifiable liquid mix.

Abstract: A method of producing scintillation phosphor X-ray detector arrays using k materials and repetitive manufacturing techniques. The structures formed by this method may be used to detect x-rays, charged particles and neutral particles by converting the incident radiation into optical radiation. Detectors manufactured by the methods of this invention will produce better x-ray images and reduce the amount of radiation a medical patient or industrial target is subjected to.

Abstract: Method of making a catheter having an irregular outer diameter and/or an irregular inner diameter caused by embedment of a reinforcing member, thereby reducing sliding friction compared to conventional smooth-wall catheters.

Abstract: A method of forming a fastener member having a base and a plurality of headed stems arranged in columns and rows and projecting from the base. The fastener member is formed by injection molding a molten material into a base mold, sacrificial stem mold and head mold, wherein the material is solidified. After the base mold and head mold are removed, the stem mold may be destructively removed to release the fastener member.

Abstract: A method for joining together tubular plastic products (1, 2) by heating the joint faces of the plastic products (1, 2) which have been chamfered at least partly in advance, and by passing molten plastic material into the space (4), that is formed between the opposite joint faces. The fixing of the tubular plastic products (1, 2) and the feed of the molten plastic material take place with the aid of a mold tool (5) which is applied onto the space (4), and molten plastic material is passed rapidly into the hollow space between the mold tool, (5) and the joint faces through a feed stub (6) provided in the mold tube.

Abstract: Method of producing a data processing care by thermo-moulding a mixture of pulverulent polycarbonate with lamp-black at a proportion of 8 ppm of lamp-black with respect to the basic thermo-hardenable material. The inner face of the wall of the mould which gives rise to the front face of the card has a checkered pattern, the distance between the recesses, respectively the protrusions, of the checkered pattern being a multiple of the wave length of the laser ray used for applying on the card the contrasted signs. A laser tube piloted by a piloting unit including a program containing the indications which are to appear on the card, is used for directing a laser radiation onto the card. The infrared rays are absorbed by the lamp-black contained in the mass of the material of the card which is heated, thereby producing a change of color resulting in appearance of signs such as a signature and a photograph on the front face of the card.

Abstract: A process for making a refastenable mechanical fastening system, made of free formed prongs joined to a substrate. The prongs taper and are nonperpendicularly oriented relative to the plane of the substrate. Each prong has an engaging means projecting laterally from the periphery of the prong. The free formed prongs are manufactured by the process of depositing liquid material onto a moving substrate, stretching the liquid material in a direction parallel to the plane of the substrate and severing the stretched material to form the distal end and engaging means of the prong. The advantageous usage of the fastening system in an article of manufacture, such as a disposable absorbent garment, specifically a diaper.

Abstract: A method of forming a sheet of material into a flower pot or flower pot cover comprising means for engaging portions of the sheet of material and forming pleats in predetermined portions of the sheet of material having a predetermined shape whereby the formed flower pot or flower pot cover has pleats in predetermined portions and of predetermined shapes.

Abstract: A process for shaping an end of a solid cosmetic stick such as a deodorant or antiperspirant. The process includes the steps of filling a package body with a molten cosmetic composition, solidifying the composition into stick form, heating a mold or package cap, elevating the stick to extend the package body opening, and contacting an end portion of the stick with the heated die or cap. A pattern such as a trademark or logo may be molded through this process onto the end portion of the stick.

Abstract: A process for aligning a layer of a liquid-crystalline, polymeric material in which a gas or liquid stream is passed over the liquid-crystalline, polymeric material, preferably for aligning main-chain polymers which have a nematic phase by passing a hot stream of air onto the material. Electrooptical displays which contain an alignment layer of this type have high contrast. The alignment layers have advantages over conventional rubbed alignment layers since, for example, no electrostatic charging takes place.

Abstract: A method for manufacturing a stimulable luminescent storage screen, of the type used to store a latent x-ray image, with the image being read-out by excitation of the screen with radiation of a first wavelength, thereby causing the screen to emit radiation of a second wavelength, includes the step of using a transparent single crystal as the initial material for making the screen, and working the transparent single crystal to form the screen. Working of the transparent single crystal can be in the form of pressing the crystal, heating the crystal, or both.

Abstract: A method of manufacturing rotors having helical lands and intermediate grooves wherein a multi-layer rotor body (2) is moulded or otherwise formed on a shaft (1) to only a small degree of accuracy, whereafter an outer layer (3) of polymer-based material is moulded on the rotor body to a high degree of accuracy. For the purpose of eliminating shrinkage-induced distortion of the lands of the rotor body (2) subsequent to applying the outer layer, the rotor body is produced in a multiple of layers (21, 22), by casting or like moulding processes, with each of the body layers having a thickness which is greater than that of the high accuracy outer layer (3).

Abstract: Method of making a tamper indicating package including a container having a neck with a threaded finish, an annular bead on the neck, a plastic closure which includes a base wall and a depending peripheral skirt having threads interengaging the threads of the container, and a tamper indicating band attached to the skirt by a plurality of weakened portions defining a line of severing. An annular flange extends axially upwardly and inwardly from the tamper indicating band toward the base wall of the closure and comprises a first continuous annular flange portion connected to the band by a hinge portion and a second portion which has free ends of the segment portions engaging beneath the bead on the container when the closure is threaded onto the container. In one form the second portion includes a plurality of segment portions extending upwardly and inwardly from the first continuous portion. In another form, the second portion includes a second continuous flange portion.

Abstract: A tubular body for reducing the rate at which a fluid flows to a predetermined rate with a resistance in a flow control device of a pressure measuring system, includes a tubular member having an axis along which the fluid can flow therethrough, and a land projecting radially inwardly from an inner wall surface of the tubular member. The tubular member and the land are integrally formed as a unitary structure, the land having an orifice extending along the axis of the tubular member. A method of manufacturing the tubular body, and a flow control device incorporating the tubular body are also disclosed.