Abstract: For the manufacture of breast prostheses from a shell-shaped body made from an addition-vulcanising two-component silicone rubber mass, which body is enclosed in a plastic sheet sheathing said body, a filler of fairly low density composed of hollow spheres or microspheres is added to the two-component silicone rubber mass. The mixture is filled into a sheath of plastic sheet and is cured in a mould under the effect of heat. To obtain the most uniform distribution possible of the filler in the prosthetic body, the mould filled and degassed in the customary way is turned continuously through one or two axes before and during the curing of the two-component silicone rubber mass until the silicone rubber is vulcanised to such an extent that any rising of the filler materials is prevented.

Abstract: A method and apparatus for making a golf ball of selected instruction having an encapsulated core or a non-treated core and a polyurethane cover of selected composition in which equipment is employed for aligning, centering and locating the core in relationship with the molding of the cover thereon.

Abstract: An exchanger includes an outer casing having an inlet port and an outlet port for a first fluid, and an inlet port and an outlet port for a second fluid, and a bundle of hollow fibers located within the outer casing and being in flow communication with the inlet and outlet port for the second fluid. A central core is located in the outer casing and the bundle of fibers is arranged around the central core. The central core includes an inlet manifold connected to the first fluid inlet port, and an outlet manifold connected to the first fluid outlet port.

Abstract: A rubber-like molded product with a support frame includes a support frame having a predetermined shape; a connecting member constituted by a thin film or connecting ribs and engaged with the support frame separably therefrom; and a rubber-like molded product formed integrally in a region of the connecting member in such a manner as to be capable of being cut off from the connecting member. In this rubber-like molded product with a support frame, the support frame, the connecting member, and the rubber-like molded product are formed integrally by press molding or injection molding. Only the rubber-like molded product is cut off from the support frame and the connecting member of the integrated rubber-like molded product with a support frame by means of a pushing jig, and is fitted in a groove formed in a predetermined portion of a fitted member.

Abstract: An invisible cover door for an inflatable passive passenger restraint is provided in an interior trim structure of an automotive vehicle for deployment of an airbag therethrough. The low pressure insert injection molding of the cover door into the interior trim structure, such as an instrument panel or dashboard or door panel structure, produces an invisible cover door with tear propagation lines that are undetectable to a vehicle occupant and that do not "show" or mar or otherwise affect the aesthetic appearance of the outer trim surface of the instrument panel or dashboard. Such invisible doors which require only two tear propagation lines can be provided.

Abstract: A branched hose construction, hose unit therefor and methods of making the same are provided, the branched hose construction comprising a first tubular hose unit having opposite ends and having a tubular branch extending outwardly therefrom intermediate the opposite ends and having a free end, a second tubular hose unit having a free end telescoped with the free end of the tubular branch, and fastening structure interconnecting the telescoped free ends together, the fastening structure comprising a quick connect/disconnect structure, the second tubular hose unit comprising an end of a flexible hose and part of the quick connect/disconnect structure molded onto the flared end of the flexible hose and extending outwardly therefrom.

Abstract: A process for potting electrical circuits with asphalt based potting compounds by providing uniform strips of solid potting compound, of controlled shape and melt characteristics, which are placed in a container in a certain sequence with the circuit board. The strips, or the uppermost strip is then reflow melted by the application of Infrared Radiant heat from directly above. The melted strip flows into the can, filing all void spaces, potting the circuit.

Abstract: A device for obtaining a glazing surrounded, on at least a portion of its periphery, by cast plastic including an injection head, a cavity, an injection dam and at least one mold part in the wall of which a duct is provided. The duct has two parts, one part located outside the joint plane and one part located in the joint plane.

Abstract: An endoprosthesis of compact thermoplastics including composite materials is disclosed. The endoprosthesis includes a plurality of prefabricated fibers such as carbon or aramid. Thermoplastics such as polyacrylates, polyaryl ether ketones, polycarbonates, polyether sulphones, polyethylenes or polyproplyenes are used as a binding agent. The prefabricated fibers have an internal core with predominately longitudinally oriented fibers and an enclosing covering with mutually intersecting fibers. The prefabricated fibers are cut to a length which is preferably five times their minimum diameter. The fibers are oriented substantially parallel to the major axis of the endoprosthesis. During molding and even in shallow cross- sections relative to the major axis of the endoprosthesis, each prefabricated fiber is at least partially overlapped by an adjoining prefabricated fiber.

Abstract: An enclosure for an electronic device forms a barrier to electro-magnetic radiation. A typical cross-section of the enclosure comprises three parallel layers. The outer and inner surface layers are of a polymeric base material in which is suspended an electrically conductive fill material, giving the surface layers relatively high electrical conductivity. The middle layer is of a polymeric base material, in which is suspended fill material having high magnetic permeability, giving the middle layer relatively high magnetic permeability. In the preferred embodiment, the enclosure is constructed using a co-injection molding process. Nickel-coated graphite (high conductivity) in a polymeric base is injected into a mold from the outer co-injection nozzle, while carbonyl iron powder (high permeability) in a polymeric base is injected into the mold from the inner co-injection nozzle.

Abstract: A process is provided for making a fluoroplastic molded-in insert without any supplementary production steps. A predetermined number of polytetrafluoroethylene bearers support a core material apart from the surface of a mold by a space equal to the desired thickness of a surfacing material to be formed on the surface of the core material. After disposing the bearers between a mold surface and the core material, hot-melt fluoroplastics are molded so as to combine the core material, the bearers and the hot-melt fluoroplastics into one unit. As a result, the core material is completely and simultaneously embedded when hot-melt fluoroplastics are molded.

Abstract: A method of manufacturing a printed antenna is disclosed which involves the steps of: providing a printed circuit board of desired length and width having a first side, a second side, a feed open, and an open end; fabricating a main radiating element of a desired electrical length on one of the printed circuit board sides; and, overmolding both sides of the printed circuit board. The printed circuit board is made of a dielectric material having a minimum degree of flexibility and the overmolding step is accomplished by injection or insertion molding a low-loss dielectric material on the printed circuit board. In addition, the manufacturing method includes the step of incorporating a feed port with the printed antenna, wherein the main radiating element is coupled to a signal feed portion thereof.

Abstract: An encapsulated shelf assembly has a shelf support supporting a panel. The panel has an edge and a one piece member encapsulates the panel edge and a substantial majority of the shelf support. The encapsulated shelf assembly may be formed in a mold apparatus which defines a mold cavity and uses a spacing plug to position the shelf support in a mold cavity of the mold apparatus in a location spaced from the sides of the mold cavity.

Abstract: Method and apparatus for cooling porous materials whereby first gases are passed through a porous material, such as polyurethane foam, in a first zone at a predetermined flow rate to cool the porous material and to remove volatiles therefrom in a first gas mixture which exits the porous material at a predetermined temperature. The first gas mixture is combined with second gases having a temperature which is lower than that of the first gas mixture to form a second gas mixture having a temperature which is sufficiently low to condense or sublime one or more of the volatiles. Thereafter, the second gas mixture is passed through the porous material to filter the condensed or sublimed volatiles thereon and to further cool the porous material. The flow rate of the heated gases is controlled to provide a controlled uniform cooling of the porous material, and additional filters may be utilized to remove particulate matter from either of the heated gases or the cold gases, or both.

Abstract: In charging a fluid molding material in an elastic molding die composed of a die body having an opening and a die support portion extending from the opening to the outside by pouring the molding material from the opening into time die body, the molding material in an amount of 1/5 to 3/5 of a volume of the die body is first charged, a molding material-charged portion of the die body is then crumpled or pinched, and then the entire die body is filled up with the molding material. The crumpling or pinching operation is achieved by such means as a blade shutter, pressing plates, air bags, or passing between two plates or conveyor belts, thereby charging the fluid molding material in the die body of the elastic-molding die without occurrence of air voids.

Abstract: There is described a blade assembly particularly for performing a tab cut in a label. The blade assembly comprises a blade received in an injection moulded plastics holder. The holder has shoulders on either side of the blade to assist in locating it and spacing it from a label to be cut. During manufacture, the blade is located within the mould for accurate injection moulding.

Abstract: An injection molded elongated article having a head and a strap, such as a cable tie, is ejected from between separated first and second mold parts by imparting a forceful gaseous stream between the mold parts to thereby peel a first portion of the strap from the first mold part after a second portion of the strap adjacent the head of the article was peeled from the first mold part by ejecting the head of the article from the first mold part while retaining the first portion of the strap in the first mold part. In a multi-cavity injection molding apparatus, a pair of nozzles are contained within each of a plurality of components through which compressed air flows into the region between the mold parts; and the nozzles are disposed closely adjacent the heads of a pair of cable ties for imparting a pair of gaseous streams from the component for peeling the first portions of the straps from the first mold part.

Abstract: A process for the production of a plastic material part with a wear-resistant surface, having a predetermined nonplanar shape, comprising heating a blank of plastic material on a first side thereof opposite a second side on which it is desired to produce the wear-resistant surface, to adjacent the melting temperature of the plastic material, such that the temperature of the second side is substantially lower than the temperature of the first side. The blank thus heated on only the first side is introduced into a mold cavity, and is subjected to elevated pressure in the mold cavity with a surface of the mold cavity in contact with the second surface of the blank having a nonplanar shape complementary to the desired predetermined nonplanar shape of the second surface, thereby to impart to the second surface that predetermined shape while the second surface is at that substantially lower temperature.

Abstract: A method of molding a composite plastic article having a cylindrical transverse cross section. The method includes the steps of forming an inner core of a cylindrical transverse cross section having a longitudinally extending hub, an outer wall surrounding the hub and ribs extending between the hub and the outer wall. A plurality of openings are formed extending through the outer wall with the openings accessible between the hub and the outer wall. A soft, resilient plastic is injection molded through only one of the plurality of openings to form an outer covering on the outer wall and to fill the other openings which extend through the outer wall.

Abstract: A method and an apparatus for economically manufacturing gasketed closures is described. Gasket material is placed within the closure and subsequently reformed to provide a gasket profile capable of forming an effective seal when the closure is applied to a container. The gasket material may be deposited in the closure as a hot-melt or as a preformed cut-out. The deposited material is subsequently reformed to have a desired profile by inserting a compression punch or a roller into the closure. The invention is adapted for the use of non-PVC containing materials such as certain thermoplastic elastomer materials which are non-flowable in a molten state and which may have a viscosity index of greater than about 40 meter-grams torque at 175.degree. C. The gasket materials may optionally be foamed prior to reforming to create a finished gasket possessing a high density area more resistant to damage when the closure is applied to a container.