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5356586 |
Method of fabricating a structural member having a stiffener bead therein
A method of fabricating a structural member having a stiffener bead therein. Prepreg plies or layers of high tensile strength fabric are laid up on a conformable caul plate. A rubber-like plug is...
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5354528 |
Process for producing preform for metal matrix composite
A process for producing a preform having a buffer layer for use in compositing a metal matrix composite where the buffer layer is provided at a boundary between a composited portion and a...
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5344602 |
Continuous forming of fiber composite materials
A workpiece of a fiber-containing composite material is formed in a kinematically admissible manner by applying a tension loading to the workpiece in a transverse direction and passing the...
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5344601 |
Molding method using two different resins and a membrane
An injection molding method which injects a first resin in a first cavity (1) and a second resin in a second cavity (2) with a flexible fabric and porous membrane (3) spanning the interior of the...
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5322661 |
Method and apparatus for molding a composite material article
A method and apparatus of molding articles from composite materials are disclosed in which a stack of prepregs are placed on a first forming surface of a former, which forming surface has a surface...
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5318422 |
Vacuum bag molding apparatus with channel and spline edge-seal
A vacuum bag molding apparatus for a mold having an inner molding surface and a peripheral edge with a vacuum pipe extending around the edge and connected by a series of vacuum ports to the inner...
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5308572 |
Method for manufacturing a reinforced cementitious structural member
A method for manufacturing a reinforced cementitious structural member having a predetermined shape and size includes providing a mold having a cavity which corresponds to the shape and size of the...
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5298212 |
Method for forming a laminated substrate
A method of producing a substantially finished surface on the outmold side of a thermosetting casting. The method entails preparing a first laminae having a curable thermosetting resin material as...
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5296170 |
Method for improving the internal surface of seamless tube of multi-layer plastics film laminate
A method for improving the internal surface of a gas-barrier, when required heat-shrinkable, multi-layer plastics film laminate in the form of a seamless tube having the innermost layer of olefin...
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5268203 |
Method of introducing an integral thermo-bonded layer into the surface of a thermoformed substrate
The invention relates to a process of thermoforming thermoplastic substrates. More particularly the method of the invention relates to a method of thermoforming thermoplastic substrates wherein an...
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5262117 |
Process for preparing thermoinsulating and/or structural formed articles and products so obtained
A process for preparing thermoinsulating and structural formal articles in which (a) a thermoplastic polymer sheet is heated at a temperature above its softening point; (b) the heated...
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5256366 |
Method of molding fiberglass
A fiberglass molding method characterized by the use of a male mask to which glass fiber material is affixed and then sealed against a female mold by a vacuum actuated gasket system. Resin is...
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5244623 |
Method for isostatic pressing of formed powder, porous powder compact, and composite intermediates
A method for isostatic pressing of formed powder, porous powder compact, and composite intermediates and the intermediate and final products produced thereby. The method includes the steps of: ...
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5242651 |
Pressure balanced processing of composite structures
A method of processing a composite structure in an autoclave involves producing a layup (10) with a low density honeycomb core (12) covered by resin impregnated composite face plies (14). The layup...
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5242652 |
Vacuum molding process for making a panel made of plastic material
A vacuum molding process uses a flexible molding skin having an imprint face arranged inside an airtight compartment. Before the vacuum is made, a pasty plastic material is incorporated in the...
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5236657 |
Process for producing multi-layer mouldings
The production of multi-layer mouldings (17) from a sheet (6) injection-moulded behind with a resin can be simplified by the sheet (6) being deformed in an injection mould by means of a fluid...
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5229164 |
Process for producing individually dosed administration forms
Process for producing individually dosed administration forms, in which a carrier material containing active substances plastic at elevated temperature, together with conventional additives is...
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5227107 |
Process and apparatus for forming nonwovens within a forming chamber
The present invention relates to a multicomponent fibrous nonwoven structure and the process and apparatus for producing the same. More specifically, the present invention relates to a process for...
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5227115 |
Process for aligning liquid-crystalline polymers
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...
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5219513 |
Process for preparing structural, heat-insulating shaped bodies, and bodies obtained thereby
A process for preparing structural, heat-insulating shaped bodies which does not necessarily require the use of a foamed heat-insulating material obtained by the use of blowing agents belonging to...
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5213817 |
Apparatus for intermittently applying particulate powder material to a fibrous substrate
An apparatus for applying particulate powder material to a moving fibrous substrate is disclosed. The apparatus includes a volumetric dry material feeder for forming a continuous stream of...
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5205892 |
Method of lining plastic objects with a thin layer of heat sensitive material
Process for unifying under heat thin structures (20) of synthetic material such as woven and non-woven fabrics, moquettes and other kinds, with manufactured products (13) made of plastic material,...
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5198173 |
Process for preparing advanced composite structures
A novel procedure for molding composite structures is disclosed wherein the finished part exhibits a net shape geometry requiring minimal further machining and displaying enhanced consolidation and...
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5194194 |
Method for molding soft sheet material
A method of molding soft sheet material having a foam layer and a skin layer. In the method, a skin powder is sprinkled on a predetermined area of the foam layer for forming the skin layer. The...
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5192483 |
Method of thermoforming a sheet around a suture needle to form a holder
A method of forming a suture needle holder for a suture needle. A suture needle is placed in a trough cut into the surface of a die. This trough intersects a cavity within the die. A sheet is...
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5167899 |
Process for melt blowing microfibers of rigid polyurethane having hard segments
Disclosed is a melt-blowing process for producing a fiber of an extrudable polyurethane having a large amount of hard segment, which comprises supplying a polyurethane comprising the reaction...
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5156795 |
Method of shaping blanks of thermoformable material
A method of shaping a thermoformable composite material including a polymeric matrix reinforced with continuous filaments which involves locating the material in overlapping relationship with at...
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5131834 |
Silicone gel isostatic pressurizing bag and method of use and manufacture
An isostatic pressurizing bag for consolidating a composite part has an outer flexible elastomer having a fixed resilient outside surface. The outer elastomer surrounds a closed chamber. A...
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5128082 |
Method of making an absorbant structure
A liquid absorbent structure is made by dry laying a fibrous web having incorporated therein a superabsorbent material, and applying a latex coating to at least one surface of said web, which on...
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5128074 |
Preparation of refractory materials
A process for preparing a refractory material comprises subjecting a blank of a precursor composition to pyrolysis under isostatic pressure conditions in the absence of a separate hermetically...
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5122176 |
A method of densifying a glass or glass composite structure
A method of densifying glass-composite structures using a superplastically deformed foil to partially encapsulate a glass-composite part and a part holding die. The die and part are contained in a...
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5120380 |
Method and apparatus for forming in-line core-filled pultruded profiles
In the manufacture of an in-line cored pultruded profile, filler is bonded with polyester or methacrylate type resin and enclosed in fiberglass, carbon or aramid fiber cloth. The cloth is preformed...
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5118372 |
Method of forming a protective and decorative sheet material on a substrate
In the manufacture of a decorative sheet material to be bonded to a substrate to provide a surface having a brushed metal appearance, a light-reflective, glossy metal layer is formed on a...
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5114635 |
Process for producing carbon material and carbon/carbon composites
A carbon/carbon composites is produced by impregnating a tow of carbon filaments with a carbonaceous pitch, placing the impregnated tow in an open container, then subjecting it to a heat treatment...
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5108530 |
Method of producing a deep-drawn formed plastic piece
A method of manufacturing a deep-drawn formed plastic piece comprises providing a cold-stretchable sheet material with a coating selected from a group of an ink film, an ink imprint, a vacuum...
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5106568 |
Method and apparatus for vacuum bag molding of composite materials
A method and apparatus for vacuum bag molding of composite materials which eliminates the need for a porous release sheet. Prepregs are placed on a forming tool and overlayed with at least one...
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5096530 |
Resin film recoating method and apparatus
Disclosed is a system for fabricating an object by selective curing of successive films of curable resin formed separately from the object being formed. In a first preferred embodiment, a thin film...
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5096651 |
Method for manufacturing an object of synthetic resin
A method of manufacturing a large-sized, thin-walled object of fiber reinforced synthetic resin, using inner and outer mold parts, which bound a mold cavity. A reduced pressure is created in the...
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5094791 |
Process for producing fibrous mats as a starting material for compression moulded articles
In a process for producing fibrous mats from starting material for compression moulded articles, fiberized waste materials are mixed with thermoplastic and/or duroplastic binders, the mixture is...
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5093053 |
Method of manufacturing multiple-layer molded articles of thermoplastic material
A method of manufacturing multiple-layer molded articles with an outer skin of compact thermoplastic material and a core of foamed thermoplastic material includes initially introducing the material...
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5093069 |
Process and device for the production of mineral wool nonwoven fabrics especially from rock wool
In the continuous production of mineral wool nonwoven fabrics, fiber/gas/air mixtures (3, 4) produced by several shredding units (14 to 17) are directed onto collecting conveyor units (19, 21) with...
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5082615 |
Method for packaging semiconductor devices in a resin
A method for packaging semiconductor devices in resin uses a mold having a pot and cavities, a vacuum pump for drawing off the air contained in the pot and the gases emitted from a resin tablet...
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5071615 |
Method and appartus for manufacturing fiber slabs
The present invention relates to a method and an apparatus for manufacturing a fiber slab (32), in which a fiber/air suspension is blown through a nozzle into a forming space (9). The forming space...
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5068077 |
Process of vacuum-air pressure drawing of a laminate containing an EVOH/polyamide copolymer
A hot drawn multilayered structure including a layer of an ethylene-vinyl alcohol copolymer composition containing 70 to 95 wt % of EVOH having an ethylene content of 25 to 60 mol % and a...
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5057254 |
Process for producing carbon/carbon composites
A carbon/carbon composite is produced by impregnating a primary-formed product consisting essentially of carbon fibers and a carbonized or graphitized matrix with a carboneceous pitch,...
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5047191 |
Method for manufacturing loudspeaker diaphragm
A felted paper loudspeaker diaphragm in which the felted paper of the annular supporting flange is thinner, and of lesser density and higher compliance then the cone body. The supporting flange is...
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5041260 |
Resin transfer molding method
A resin transfer molding preform is disclosed comprising a formation of fiber reinforcement material and a web in direct contact with the formation and encapsulating at least a portion thereof,...
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5037599 |
Single diaphragm forming of drapeable thermoplastic impregnated composite materials
A process for preparing non-planar thermoplastic fiber reinforced composites utilizes drapeable thermoplastic impregnated fiber reinforced prepregs in a pressure thermoforming process employing but...
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5034178 |
Process for manufacturing embossed articles of synthetic resin with an undercut
A process and apparatus for manufacturing an embossed article of synthetic resin including heating a synthetic resin sheet to a softening temperature; pressing the heated synthetic resin sheet on...
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5034077 |
Method for thermoforming and bonding a paint-coated polymeric film to a substrate
Paint-coated polymeric films which are bonded to substrates such as automobile panels, as a substitute for spray painted finishes, often develop surface blemishes or defects from the coating or web...
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