15184 results about "Injection moulding" patented technology

The present invention pertains to an orthopedic support having a flexible inner member and an exo-skeleton that is molded directly onto the flexible inner member. In one particular embodiment, a versatile, multi-medium orthopedic ankle support assembly has an inner fabric support for extending at least partially around an injured part of the anatomy and for providing basic support for the injury. A plastic exo-support is injection molded into said fabric support and supplies supplemental support for resisting motion of the injured part in undesired directions. The fabric support has a main body portion for extending at least part way around the injured part of the anatomy and has edges to be secured together after the fabric support is fitted to the injured part. The invention is not limited to ankle braces, of course, as the general principle of molding an exo-skeleton onto a flexible inner member may be used in conjunction with numerous different supports. An efficient method for constructing an orthopedic support includes the steps of first placing a sheet of flexible material across a mold, cutting the sheet, injection molding the exo-structure onto the sheet material in the mold, and securing the sheet into an orthopedic support.

This invention relates to a thermally conductive moldable polymer blend comprising a thermoplastic polymer having a tensile at yield of at least 10,000 psi; at least 60% by weight of a mixture of boron nitride powders having an average particle size of at least 50 microns; and a coupling agent. The composition displays a thermal conductivity of at least about 15 W/m DEG K and it is capable of being molded using high speed molding techniques such as injection molding.

Touch switches are integrated with thermoformable, injection molded, and other substrates to yield integrated touch switch/control panel assemblies. The ensuant assemblies can include ridges, depressions, anchors, overlaps, rivets and bezels or other housings. They can have any combination of flat and curved surfaces. Further, such assemblies can be incorporated into components of other assemblies, such as automobiles.

Injection molding systems and methods useful for making microcellular foamed materials are provided as well as microcellular articles. Pressure drop rate and shear rate are important features in some embodiments, and the invention provides systems for controlling these parameters in an injection molding system. Another aspect involves an injection molding system including a nucleator that is upstream of a pressurized mold. Another aspect involves an extrusion system with the reciprocating screw for forming a single phase solution of non-nucleated blowing agent and polymeric material. Another aspect involves very thin walled microcellular material and very thin walled polymeric material. Another aspect provides a method for producing high weight reductions in very thin-walled parts with surfaces that have no noticeable differences from non-foamed parts.

A cap, which is detachably connectable to an optical head of an endoscope, has a tubular housing, which is manufactured by injection molding from translucent plastic material. The housing includes a rear open end and a frontal end closed by a frontal face and an antiglare ring for preventing a viewer of the optical head from viewing parasitic reflections. The antiglare ring is embedded within the frontal face of the cap and said optical head can view an object of interest through a portion of the frontal face which is confined by the antiglare ring. The antiglare ring is provided with at least one discontinuity region through which the plastic material can flow during injection molding of the cap.

A tray (100) or container (478) which may be hermetically sealed having a flange (116), rim (124), handle (258), rib, bottom surface (500), sidewall (114), or other portion that is encapsulated by or formed from injection-molded material.

A conveyor belt (1) is composed of a number of identical links in the formation of an endless belt, where each link comprises at least one axle (3) arranged transversely in relation to the direction of travel (2), and an outer link (4) at each side in engagement with the axle. Each outer link comprises an elongated hole for the adjacent link's axle, so that the belt can be driven in a curve in the plane of the belt. Each outer link has at least one securing hole for a transverse axle, where the coupling-together between the axle (3 and the outer link (4) is effected by a separable snap-lock. The outer link is moulded as a one-piece unit in a suitable plastic material, preferably by injection moulding. The outer links (4) can also be configured in a larger version for the construction of conveyor belts for operation in self-stacking helical systems.

The invention relates to a process for producing a toothbrush having a body, which comprises a handle region, a head region and a neck region located between the handle region and the head region, and having functional elements which are arranged, at least in part, within the body and comprise an electrically operated functional unit and an electric supply device which has an energy store and is intended for the functional unit, in the case of which the body is produced, by injection molding, from at least one hard component, which serves as a reinforcement, and at least one soft component, and at least some of the functional elements, during the production of the body, are encapsulated, at least in part, directly by the plastic which forms the soft component.

A security hood assembly for a holster includes a hood that is movably supported in association with a holster body so that the hood extends over a portion of a holstered handgun or other service item when the hood in a closed position, to prevent unauthorized removal of the service item. A lever may be operably coupled to the hood for driving the hood toward an open position, to allow the service item to be removed from the holster. In some embodiments, a latch mechanism releasably engages when the hood is in the closed position to prevent the hood from being opened through direct manipulation of the hood. The hood is preferably formed of a substantially rigid material, such as injection molded plastic. Holsters including the security hood assembly may also include internal retention devices, hood biasing mechanisms, and electronic devices responsive to opening of the hood.

The invention relates to a wood plastic composite material comprising the following materials in parts by weight: 100 parts of wood meals, 20-80 parts of waste plastics, 5-50 parts of waste rubbers, 10-60 parts of high-melt index thermoplastic resins, 1-12 parts of surface active agents, 2-8 parts of lubricating agents, 0.1-4 parts of cross-linking agents, 0.1-4 parts of antioxygens and 0.05-1.5 parts of processing agents, wherein the grain diameter of the wood meals ranges from 10 meshes to 325 meshes; the flow velocity of the high-melt index thermoplastic resins is higher than 20 g/10 minutes; the cross-linking agents are peroxides, thus the invention improves the dispersibility and the flowability of the wood meals contained in the composite and the compatibility of plastics by adding the high-melt index thermoplastic resins, can not only better utilize the resources, but also enhances the mechanical strength (such as tensile strength, bending strength, impact strength, and the like) of the composite material by adding the waste rubbers, has the advantages of good processing property, low water absorption rate, good stability of products, and the like and is suitable for injection moulding and beneficial to market promotion.

The invention relates to a process for producing mouldings by injection moulding, the steps in the process being A) Melting a mixture made from a) a (meth)acrylate copolymer composed of from 40 to 100% by weight of free-radical-polymerized C1-C4-alkyl esters of acrylic or methacrylic acid and from 0 to 60% by weight of (meth)acrylate monomers having an anionic group in the alkyl radical, where the copolymer comprises b) from 0.1 to 3% by weight of a release agent, and, where appropriate, the mixture may comprise c) from 0 to 50% by weight of a drier, d) from 0 to 30% by weight of a plasticizer, e) from 0 to 100% by weight of additives or auxiliaries, f) from 0 to 100% by weight of an active pharmaceutical ingredient, g) from 0 to 20% by weight of another polymer or copolymer, where the amounts given for components b) to g) are based on the (meth)acrylate copolymer a) and the mixture prior to melting has a content of more than 0.5% by weight of low-boiling constituents with vapour pressure of at least 1.9 bar at 120° C., B) Devolatilizing the mixture in the thermoplastic state at temperatures of at least 120° C., thereby lowering to not more than 0.5% by weight the content of the low-boiling constituents with vapour pressure of at least 1.9 bar at 120° C., C) Injecting the molten and devolatilized mixture into the mould cavity of an injection mould, the temperature of the mould cavity being below the glass transition temperature of the (meth)acrylate copolymer by at least 10° C., cooling the molten mixture, and removing the resultant moulding from the mould.

A monolithic optical module of injection-molded high temperature polymeric resin combines an optical turn of typically 90 degrees together with dual or triple beam paths. No additional piece parts are necessary for achieving the optical turn, since this occurs by total internal reflection (TIR), and no additional piece parts are necessary for dual monitoring, which is realized by means of an air-gap functioning as a dual beam-splitter plate. The monolithic optical module further includes integrally surfaces for accurate alignment of the module with external optical elements, and can additionally include integral optical elements, for example lenses and thin film coatings.

The present invention relates to a preparation method of biological affinity hydrophilic active magnetic seed filling material for treating water. It is characterized by that said method includes the following steps: mixing biological affinity substance, hydrophilic substance, magnetic powder and active carbon or magnetic powder and calcium carbonate in the high-molecular base material, and adding dispersion lubricating agent, uniformly stirring them, placing them into injection moulding machine, utilizing filling mould to make extrusion moulding and magnetizing, so as to obtain the invented filling material. It has biological affinity and hydrophilicity, at the same time can induce microbial activity and enzyme activity, and can raise oxygen utilization rate in water and water treatment efficiency.

Disclosed is an injection molding method for manufacturing plastic parts from thermoplastically processible plastic molding materials with at least one exposed part (1) and at least one functional part (10), whereby the plastic molding material for the exposed part (1) comprises a transparent or translucent matrix with added effect pigments, and whereby the functional parts (10) can exhibit different physical and/or chemical plastic properties to the exposed parts (1). The injection molding method comprises the following steps: a) injection molding and solidification of the plastic molding material of the at least one exposed part (1) with an exposed surface (2) and a core surface (3) facing away from the latter in a first mold (20) with a first cavity (21); b) opening of the first mold (20) along a parting line or plane (24); c) closing of a second mold (25) with the at least one exposed part (1) in a second cavity (28); d) injection molding and solidification of the plastic molding material of the functional part (10) on the core surface (3) of the at least one exposed part (1); and e) opening of the second mold (25) and removal of the part. The injection molding method according to the invention is characterized in that for each exposed part (1)—to prevent irregularities such as flow marks and/or knit lines—a single injection nozzle (5) positioned to optimize the flow or at least two injection nozzles in a cascaded injection molding method are used, and that the plastic molding material for the exposed part (1) comprises at least one transparent polymer. The corresponding plastic parts manufactured by injection molding exhibit an exposed surface (2) and a core surface (3) facing away from the latter with at least one injection point (6), whereby the functional part (10) of the plastic part is injection molded onto the core surface (3) of the previously solidified exposed part (1).