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| Number | Title | Issue Date |
| 5863452 | Isostatic pressure resin transfer molding Method and apparatus for making a fiber reinforced composite wherein fiber reinforcement material is disposed in a molding cavity formed between a substantially rigid molding tool and a compliant molding tool in a pressurizable chamber of a pressure vesse... | 01/26/1999 |
| 5820894 | Method and apparatus for consolidating a workpiece at elevated temperature A consolidation apparatus includes a female mold having a first portion and a second portion, a movable caul plate within the first portion of the female mold, and a pressure bladder disposed between the caul plate and the second portion of the female mol... | 10/13/1998 |
| 5811050 | Electromagnetic interference shield for electronic devices An EMI shield for personal computers, cellular telephones, and other electronic devices is constructed from thermoformable polymeric material which is then metallized on all surfaces by vacuum metallization techniques to provide an inexpensive, lightweigh... | 09/22/1998 |
| 5807593 | Vacuum bag not requiring disposable breathers A process and method for manufacturing fiber reinforced composite structures without trapping volatiles in the resin matrix. Volatiles from the curing cycle are absorbed into a silicone rubber layer,and a gas impermeable barrier layer outside the silicone... | 09/15/1998 |
| 5795536 | Method and apparatus for curing cylindrical polymeric objects The present invention provides a method and apparatus for the rapid, uniform curing of cylindrical, polymeric objects. The invention provides precise, accurate control of both the curing temperature and pressure because the heating system is independent o... | 08/18/1998 |
| 5780071 | System for calibrator changeover Calibrators (10-16) are pre-aligned on a base (18) that is positioned on a table (60). A guide (82) includes a first section (84a, 84b) connected to base (18) and a second section (94) connected to table (60). First section (84a, 84b) cooperates with seco... | 07/14/1998 |
| 5772946 | Press-forming apparatus A press-forming apparatus is disclosed in which a preform such as green sheets, for example, is charged into a cavity in a pressure container, the cavity is covered with a lid member, and the green sheets are pressed by a pressure medium while the green s... | 06/30/1998 |
| 5770243 | Vacuum bagging apparatus An apparatus for forming composite articles which include the stretchable or pre-shaped membrane adapted to be placed on a mold in a ridged framework carrying an outer seal. An inner seal is attached to the membrane and located between the membrane and th... | 06/23/1998 |
| 5766541 | Method and apparatus for making preforms from glass fiber strand material The present invention is directed to a method and apparatus for forming a preform from glass fiber strand material. The preform is formed by feeding continuous glass fiber strand material into a mold to form a continuous wool product in the mold; feeding ... | 06/16/1998 |
| 5766539 | Process of molding racket frame formed of fiber reinforced thermoplastic resin free from burr and burn A process of molding a racket frame having an evacuation stage for shrinking a lamination of an inner bladder, a tubular prepreg and an outer protective tube before closing a mold, and the reinforcing fibers of the prepreg are not cut by inner edges of th... | 06/16/1998 |
| 5766531 | Fiber mat forming method A fiber mat as well as its method of fabrication and forming machine are described. The fiber mat comprises a plurality of fibers which are limitations bound together and distributed throughout the mat, and wherein some of the fibers are inclined towards ... | 06/16/1998 |
| 5756658 | Process for preparing styrenic resin A styrenic resin is prepared by a method which comprises extruding a styrenic polymer powder having a syndiotactic configuration at a molding temperature of from the melting point of the polymer to 400° C. at an extrusion rate meeting the equation Q... | 05/26/1998 |
| 5747144 | Costumes with semi-rigid fabric components and method of manufacture of same A process for manufacturing a costume having semi-rigid costume components, and the costume itself. The semi-rigid costume components are capable of being sewn to fabric to form an integrated costume. An embodiment is shown in which the costume includes a... | 05/05/1998 |
| 5744075 | Method for rapid fabrication of fiber preforms and structural composite materials A densified carbon matrix carbon fiber composite preform is made by vacuum molding an aqueous slurry of carbon fibers and carbonizable organic powder to form a molded part. The molded part is dried in an oven at 50° C. for 14 hours and hot pressed at 200... | 04/28/1998 |
| 5731061 | Perforated thermoplastic sheet in which the perforation craters have sidewalls that present converging portions and diverging portions, a fibrous composite plane material including such a sheet, and methods of manufacture The perforated sheet, in particular for sanitary articles, and made of a substance that is impervious to liquid, includes a multiplicity of craters each having a base in the plane of the outside face, an apex, and a sidewall that slopes between the base a... | 03/24/1998 |
| 5731015 | Method and system for manufacturing composite articles Apparatus for manufacturing a composite article comprising an autoclave having a platen, a work tool located in the autoclave and supported by the platen, and a composite article on the work tool. The platen is heated to transfer heat from the platen to t... | 03/24/1998 |
| 5716582 | Method of and apparatus for ejection of molded product from mold parts During operation of a molding apparatus that combines a cavity part having a plurality of cavity sections and a core part having a plurality of cores to define a plurality of mold cavities therebetween, when the cavity part and the core part are first sep... | 02/10/1998 |
| 5709893 | Breathable tooling for forming parts from volatile-emitting composite materials An apparatus for curing composite materials that emit large volumes of volatiles during processing. The apparatus includes tooling having a rigid forming surface contoured to the shape of the formed composite part. A plurality of passages extend from the ... | 01/20/1998 |
| 5702663 | Vacuum bag for forming fiber reinforced composite articles and method for using same An vacuum bag for forming of a fiber reinforced composite article, made of a curable elastomer, having molded in resin distribution means. Optional vacuum conduits are molded into the periphery of the bag, causing the bag to be adapted to any number of mo... | 12/30/1997 |
| 5665301 | Apparatus and method for forming fiber reinforced composite articles A unitary vacuum bag for forming of a fiber reinforced composite article, made of a fabric mesh reinforced curable elastomer, having a smooth surface on both sides. The bag is constructed upon the surface of the article which is to be reproduced and upon ... | 09/09/1997 |
| 5641525 | Resin transfer molding apparatus Disclosed herein is a resin transfer molding apparatus including a female mold member having a rigid surface including a main surface portion, and a recessed surface portion extending inwardly from and bordered by the main portion to define a recessed are... | 06/24/1997 |
| 5639416 | Method of molding precision parts A process for molding dimensionally accurate plastic articles using a low pressure injection molding technique. The process utilizes a two-piece silicone rubber mold having a cavity representative of the shape of the article to be molded. The mold is subs... | 06/17/1997 |
| 5632936 | Method and apparatus for molding ophthalmic lenses using vacuum injection A lens mold cavity is formed and then evacuated via a vacuum channel contained within a mold member. A fluid valve is opened to expose the lens mold cavity to liquid lens material, whereby a vacuum of the lens mold cavity draws the liquid lens material to... | 05/27/1997 |
| 5632940 | Method of making an integrally stiffened article A method of making an article from a fiber reinforced polymer composite material including the steps of providing at least two mandrels, wrapping at least one of the mandrels with a first layer of a fiber reinforced polymer composite material, disposing t... | 05/27/1997 |
| 5614131 | Method of making an optoelectronic device An optoelectronic device is fabricated by casting a transparent polymeric body surrounding an electronic component. A reflective layer is formed over the polymeric body. The reflective layer acts as a mirror to reflect light emitted by one electronic comp... | 03/25/1997 |
| 5601852 | Unitary vacuum bag for forming fiber reinforced composite articles and process for making same An vacuum bag for forming of a fiber reinforced composite article, made of a curable elastomer, having molded in resin distribution means. Optional vacuum conduits are molded into the periphery of the bag, causing the bag to be adapted to any number of mo... | 02/11/1997 |
| 5591387 | Method of demolding a green body and finishing same A green body of a vessel-shaped piece of sanitary ware made by slip casting, such as a washbasin, is demolded by a robot having an arm provided at its free end with a suction pad which is brought into contact with the outer surface of the bottom of the gr... | 01/07/1997 |
| 5588392 | Resin transfer molding process A method for manufacturing, in a resin transfer molding process, a fiber-reinforced polymer object having an exterior surface with first and second portions, the method comprising the steps of providing a first mold with an inner surface, placing dry rein... | 12/31/1996 |
| 5576030 | Apparatus for fabricating composite parts The invention is an apparatus for forming fiber reinforced resin structures In detail, invention includes a fluid impervious outer first sheet. A mold surface is includes upon which can be supported a lay-up of at least one layer of fibrous material, and ... | 11/19/1996 |
| 5556591 | Membrane sealing techniques using thermoplastic polymers A process for potting hollow fibers within a body is disclosed wherein a bundle of hollow fibers is formed within a hollowed portion of the body such that the fibers are substantially aligned and uniformly spaced. A molten thermoplastic composition is dis... | 09/17/1996 |
| 5556587 | Method of manufacturing ceramics using a porous mold A porous mold for manufacturing ceramics comprises a porous mold body including a mold central portion and a mold outer peripheral portion and having mold surface of a shape corresponding to an outer shape of a suspension insulator and other similar ceram... | 09/17/1996 |
| 5549867 | Distribution enhanced polyolefin meltspinning process and product Improved meltspinning productivity is achieved by employing polyolefin resins having key molecular weight distribution and rheological property parameters within predetermined ranges. These parameters include the molecular weight distribution breadth para... | 08/27/1996 |
| 5545369 | Clamshell corrugators and the like An improved, endless mold tunnel, clamshell-type, thermoplastic tube molding apparatus and method using exteriorly disposed, compressive roller elements and a cooperating keyway/matching lug assembly for maintaining the alignment of the independent mold b... | 08/13/1996 |
| 5534203 | Composite pole manufacturing process for varying non-circular cross-sections and curved center lines A composite ski pole is formed of fiber reinforced plastic laminates laid up around an inflatable bladder, and placed in a female mold. The bladder inflates to compact the laminates to substantially eliminate voids and form a smooth, hollow ski pole with ... | 07/09/1996 |
| 5526767 | Method of manufacturing a boat hull A method for manufacturing a boat hull having an outer surface and including fiber-reinforced polymer and a plurality of stringers embedded in the fiber-reinforced polymer so that the fiber-reinforced polymer and the stringers define an inner surface of t... | 06/18/1996 |
| 5525290 | Method of manufacturing a decorated helmet A decorated helmet is formed by applying a decoration to a side of a plastic sheet. The plastic sheet is heated and applied to a helmet shell with the decoration between the plastic sheet and the helmet shell. A vacuum is applied to the heated plastic she... | 06/11/1996 |
| 5520875 | Process for producing a surfactant treated, formed, polymeric web A coextruded, multilayer polymeric film having a core layer including a surfactant and at least one outer layer is placed on a forming structure. The forming structure moves in a direction parallel to the direction of travel of the multilayer film and car... | 05/28/1996 |
| 5518385 | Apparatus for resin transfer molding In an apparatus and method for resin transfer molding, a mold including at least two cooperating mold sections is placed in a vacuum chamber. A reinforcing material is positioned between the mold sections, which are separated from one another during evacu... | 05/21/1996 |
| 5514325 | Process for cooling and calibrating elongated objects made of plastic together with cooling and calibrating device The invention describes a process for cooling and if necessary calibrating elongated, especially continuously extruded objects (7) made of plastic as well as a cooling and calibrating device (5) for carrying out the process. With this the object (7) durin... | 05/07/1996 |
| 5512234 | Method and apparatus for manufacturing surface fastener Molten resin is extruded in a predetermined width from an extrusion nozzle. The molten resin is forced to a die wheel, which is situated facing the extrusion nozzle with a predetermined gap therewith, has inside a cooling unit and is adapted to be rotated... | 04/30/1996 |
