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4267142 |
Reinforced resin molding method and apparatus
The specification discloses an apparatus and method for molding glass fiber reinforced polyester resin articles. A bladder-covered male mold is in turn covered with resin and reinforcement and a...
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4259281 |
Process for reducing micro-voids in the extruded insulation of electric cables
A process for reducing micro-voids in cross-linked cable insulation without reducing the voltage breakdown strength thereof in which process the insulation, after cross-linking, is heated at a...
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4257994 |
Method and apparatus for injection molding solid steel-banded press-on industrial rubber tires
A method of and apparatus for injection molding solid steel-banded industrial rubber tires wherein a steel band is inserted in the bottom mold member cavity when the top mold member is in open...
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4256444 |
Plant for injection molding of thermosetting epoxy plastics
This invention provides process and apparatus for the injection molding of epoxy resin molding compositions. The constituent materials of the epoxy resin feed mixture are separated into at least...
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4254071 |
Method of preparing electrostatic coating compositions containing an epoxy resin
Insulating coating compositions for electrical wire are prepared by a method which includes a dehydration process to prevent any reaction from occurring between adsorbed moisture and the catalyst...
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4248817 |
Method for the manufacture of workpieces in particular fan blades, complete fan rotors and other bodies
A method for manufacturing work pieces such as fan blades, complete fan rotors and other bodies wherein a core is wrapped around with reinforcing means and the wound core is inserted in a mould,...
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4247519 |
Exhaust gas treatment device for injection molding machines
An exhaust gas treating device for injection molding machines, in which a vent port of a vented injection machine is connected to a vacuum and an exhaust gas treating mechanism for treating the gas...
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4240995 |
Methods for preparing natural and artificial structures
Voids in at least a part of an artificial or natural structures overlying a highly porous layer (e.g. a concrete road or airfield runway) adjacent an exposed surface of the structure are filled...
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4238437 |
Method for producing fiber reinforced product
A fiber-reinforced product or article and a method and apparatus for producing same are provided. For producing the product, a mold of the size and shape of the desired product has reinforcing...
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4231981 |
Cadmium mercury telluride sputtering targets
Embodiments of a method are disclosed for producing large size cadmium mercury telluride (CMT) sputtering targets of a homogeneous composition. Sputtering targets of CMT having a general formula Cd...
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4231762 |
Method of producing a sintered diamond compact
A sintered compact for use in a cutting tool and a method of producing the same are disclosed. The compact comprises 95 to 20 volume % of diamond finer than one micron in size and the balance...
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4224276 |
Process for manufacturing closed hollow bodies in elastomeric material
A process and a device are disclosed for forming a tennis ball which comprises the formation of two semispherical bowls in crude elastomeric material each having on its border a structural shape...
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4217157 |
Method of fabricating fiber-reinforced articles
A method for fabricating a filament reinforced metal matrix composite comprises bonding a plurality of filaments to a perforated metal foil with a fugitive binder, overlaying the filaments with a...
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4205031 |
Method of producing laminates of reinforced or non-reinforced thermosetting resin in a low pressure chamber
A method of producing laminar structures, preferably consisting of fibreglass-reinforced polyester, which are free of air-pockets and pores, by spraying layers of the plastics and reinforcement...
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4201742 |
Method and apparatus for injection molding foamed resin products having a smooth finish on their surface
This invention substantially improves the surface finish on resin filled foamed molded plastic products manufactured by injection molding by pre-heating the skin surface of that part of the mold in...
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4197268 |
Method of and an apparatus for monitoring the digassing opening on a single or twin screw extruder for processing plastics material
A control device connected to rotational speed measuring means for an extruder screw, to a filling level monitor in a degassing opening of the extruder, to a cut-off in a filling container for the...
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4190686 |
Protective composition and method
The improved composition of the present invention can be set, in accordance with the present method, to a high temperature, corrosion resistant protective covering or coating on various types of...
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4182843 |
Method for producing castings by activated anionic polymerization of lactams
An improved method for the production of castings by the anionic polymerization of lactams, particularly lauric lactam, in which two melts prepared separately, one with a catalyst and one with an...
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4181510 |
Waste gas discharging device for use in injection molding machine
A waste gas discharging device for use in an injection molding machine including a vacuum pump connected by way of a waste gas discharging unit to a vent hole in an injection molding machine, a...
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4174241 |
Simultaneously laminating and press polishing plastic laminated transparencies
The present invention relates to simultaneous press polishing and lamination of laminated plastic transparencies such as are used in aircraft as aircraft windshields or aircraft canopies. The...
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4173607 |
Method for texturing the surface of non-woven fabric films
A non-woven fabric or film of thermoplastic material has a pattern impressed on its surface so that it has a more pleasing appearance. The film is pressed between the patterned surfaces of two mold...
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4172872 |
Method of molding large-sized plastics
A method of molding large-sized plastics is disclosed, in which is used an apparatus comprising an extruding means and a die clamping device composed of a stationary die plate and a movable die...
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4170616 |
Method of fabrication of a Fresnel lens
A method for fabricating a Fresnel lens comprising a plastic layer contacted to a transparent substrate by evacuating a chamber formed by the lens mold and the substrate through a pumping tube;...
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4165358 |
Process for clamping, sealing, and aiding the filling of matched molds
A technique and process for clamping, sealing and aiding in the filling of fiberglass or other types of matched low pressure molds. An air-impervious bag is placed about the male and female molds...
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4164524 |
Treatment of blood containing vessels
Method and apparatus are provided for treating one surface of a wall of articles to be used in contact with blood. A solution which is compatible with blood is brought into contact with the surface...
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4157931 |
Process for producing information carrying discs
The process according to the invention uses a matrix engraved by any means, the tracks being perfectly centered on this matrix in relation to a center of rotation. The matrix is placed in a vacuum...
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4156752 |
Fire protection covering for small diameter missiles
New, flexible intumescent protection sheeting of unusually uniform thickness have been prepared from epoxy-polysulfide compositions containing microfibers and the ammonium salt of...
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4155964 |
Method for producing semi-finished prosthetic dental preforms
A method contemplated by the present invention for producing semi-finished prosthetic dental preforms essentially comprises the steps of repulverizing a dental porcelain mixture including a...
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4153659 |
Enhancing solvent barrier property of pigmented polymeric bodies
The solvent barrier property of pigmented, solid polymeric articles is improved by pretreating the pigment particles prior to incorporation into the solid polymeric material so as to remove trapped...
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4142888 |
Container for hot consolidating powder
A container for hot consolidating powder of metallic and non-metallic composition and combinations thereof by the application of heat and pressure wherein the container includes a mass of container...
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4143108 |
Method of injection molding nitrile articles
An improved method for forming thermoplastic articles from high nitrile polymers by injection molding which method comprises initially charging the high nitrile polymer to a vacuum hopper system...
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4141947 |
Continuous process for making variegated soap
A high speed continuous process for making variegated soap bars is disclosed. Soap chips and an emulsion of minor soap ingredients are each continuously supplied to a mixer. The output of the mixer...
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4132590 |
Method of producing inorganic boards
A method of producing an inorganic substance board, wherein after preparation, such as by use of paper making process, the board is hardened in an autoclave with saturated steam at a high...
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4132755 |
Process for manufacturing resin-impregnated, reinforced articles without the presence of resin fumes
A technique for the manufacture of a resin-impregnated, reinforced article while resin fumes are prevented from escaping into the surrounding atmosphere. In this technique a permeable reinforcing...
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4131667 |
Preparation of polyurethane composite mold by injection molding
Method of preparing polyurethane composite mold by injecting a composite reaction mixture onto a master form in a mold cavity, curing said reaction composite and removing it from the master form in...
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4127635 |
Method for extruding thermoplastic polymers
Profiles may be extruded directly from powdered ABS or other similar thermoplastic materials without pelletizing the feed material, by compounding under dry air flush conditions; maintaining dry...
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4120050 |
Devolatilizing vent
A vent adapted for use with a devolatilizer having a mechanical press includes a closed vent chamber extending generally vertically above the mechanical press and having a horizontal...
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4117063 |
Processing a graft polymer or elastomer
A cross-linking polyolefine, preferably a polyethylene powder is mixed with a silane solution (containing additives, such as a graft initiator, activator and anti-oxidant) and heated while worked,...
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4117073 |
Process for the production of preplasticized materials
A process and apparatus for the production of materials preplasticized to their final density from high molecular weight powder-form completed mixtures, which are directly used as starting product...
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4110389 |
Method and apparatus for rotational molding with evacuated guard chamber in mold flanges
The apparatus comprises a double walled mould interior divided into two halves, a heat exchange exterior hollow envelope and a pressure-exchange compartment within the envelope surrounding the...
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4107254 |
Method of lining pipes, molds or other tubular articles with thermosetting plastic material
A method of lining a pipe with settable material including the steps of arranging the pipe with its longitudinal axis inclined at an angle to the horizontal, introducing a selected amount of liquid...
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4101623 |
Method of lining pipes
A method of lining a pipe with thermosetting synthetic plastics material including the steps of arranging the pipe with its longitudinal axis inclined at an acute angle to the horizontal,...
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4100239 |
Method for making hollow panels
Method for making hollow plastics insulating wall panel. The plastic material, in a flowable form, is continuously forced about a core to form an enclosed central cavity or chamber. The continuous...
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4100136 |
Fluorocarbon siloxane compositions
Fluorocarbon siloxanes of the formula ##STR1## ARE DISCLOSED. Their use as reversion resistant curing agents in curable compositions comprising reversion resistant siloxanes of the formula ##STR2##...
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4100244 |
Method for directly cooling melted thermoplastic resins
Direct cooling of melted thermoplastic resins, while in a continuous extruding operation, can be achieved, by pouring into them a coolant such as pure water, liquid nitrogen or the like in the...
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4094716 |
Method of and apparatus for decorating articles with decalcomanias
A decalcomania is prepared for transfer to an article by wetting the backing layer of the decalcomania, peeling this layer from the transfer sheet which bears the pattern, and perforating the...
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4094942 |
Method for removing unreacted monomer
A method for removing unreacted monomer (or monomers) from an ethylene homopolymer or a copolymer of ethylene and at least one monomer copolymerizable with ethylene during the course of...
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4092393 |
Method of making blocks and plates from pieces of marble and other natural stones
Pieces of marble or similar natural stone having a plurality of plane faces are stacked in a liquid-tight container. Said pieces are arranged with their plane faces facing each other so as to form...
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4084942 |
Ultrasharp diamond edges and points and method of making
Ultrasharp diamond edges and points which are usable as cutting instruments and as high intensity point sources for the emission of electrons, ions, x-rays, coherent and incoherent light and high...
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4083903 |
Method for molding elongated thin wall articles
Thermometer probe covers having an extremely thin wall integral tip for enhanced heat transfer are injection molded by unique mold core construction and venting configuration. A tungsten carbide...
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