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| Number | Title | Issue Date |
| 8100683 | Needle-to-needle electrospinning The disclosure relates to a method and apparatus for coating a medical device. The method includes providing an electrospinning apparatus and simultaneously electrospinning at least one solution onto a first surface and an opposing second surface. The apparatus comp... | 01/24/2012 |
| 7351052 | Apparatus for producing nanofiber utilizing electospinning and nozzle pack for the apparatus The apparatus for producing a nanofiber includes a supply unit (110) for supplying melted polymer for fiber material, a spinning unit (122) having several radiation nozzles (122) to which first voltage having a polar is applied to discharge the ... | 04/01/2008 |
| 7326043 | Apparatus and method for elevated temperature electrospinning Elevated temperature electrospinning apparatus comprises a pump upstream of or containing a resistance heater, means to shield applied electrostatic field from the resistance heater, and a temperature modulator for modulating temperature in the spinning region. ... | 02/05/2008 |
| 7244116 | Apparatus for improving mechanical characteristics of nonwoven materials An apparatus for forming a nonwoven material from a liquefied polymer, the apparatus comprising: (a) a precipitation electrode; (b) a dispenser spaced apart from the precipitation electrode, and defining a first axis therebetween, the dispenser being at a first pote... | 07/17/2007 |
| 7086846 | Electro spinning of submicron diameter polymer filaments An electro spinning process yields uniform, nanometer diameter polymer filaments. A thread-forming polymer is extruded through an anodically biased die orifice and drawn through an anodically biased electrostatic field. A continuous polymer filament is collected on ... | 08/08/2006 |
| 6604925 | Device for forming a filtering material A device for producing a porous fiber structure. One or more points of high surface curvature is produced in a liquefied polymer, such as a polymer solution or a polymer melt. The points of high surface curvature may be produced by forcing the liquefied p... | 08/12/2003 |
| 6561787 | Apparatus for forming biodegradable and edible feed packaging materials Molding apparatus (10) is provided which allows use of a particulate non-liquid molding material (121) to produce a variety of articles, such as frustoconical barrel segments (122). The apparatus (10) includes a female mold segment (18) including generall... | 05/13/2003 |
| 6464814 | Method for molding an end of a long resin molded article A method for molding an end of a long resin molded article that is obtained by extrusion molding and has a design surface and an attachment surface extended in a longitudinal direction of the long resin molded article, and the attachment surface is attach... | 10/15/2002 |
| 6410895 | Induction heating coil unit for manifold in hot runner mold In an induction heating coil unit for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed ... | 06/25/2002 |
| 6383435 | Method and apparatus for expanding and conferring a cup shape to the terminal junction segment of bi-axially oriented pipes made of thermoplastic material A method and apparatus for conferring a cup shape to the terminal junction segment of pipes that are bi-axially oriented longitudinally and circumferentially and hence very sensitive to diameter and length reduction through heat. The apparatus includes a ... | 05/07/2002 |
| 6340442 | Method and apparatus for producing molded tubular objects from polymer concrete A method and apparatus for producing tubular molded products from molding material includes a mold casing and a mold core having a common longitudinal central axis which is vertically disposed. The mold casing and mold core are spaced from one another to ... | 01/22/2002 |
| 6309582 | Method for making insignias with raised designs including two pressing steps A method and apparatus for making insignias with a raised design is capable of providing more aesthetic appearance to the insignias thus made. A base material consisting of a base sheet and a surface sheet overlaying the base sheet is prepared for making ... | 10/30/2001 |
| 6231803 | Method for stretching plastic nets and grids apparatus for performing the method A method for stretching plastic nets and grids having the peculiarity that it consists in subjecting the product to be stretched to irradiation with electromagnetic waves with a wavelength above the infrared range, so as to heat the product by dielectric ... | 05/15/2001 |
| 6220846 | Apparatus for expanding and conferring a cup shape to the terminal junction segment of bi-axially oriented pipes made of thermoplastic material An apparatus for conferring a cup shape to the terminal junction segment of pipes that are bi-axially oriented longitudinally and circumferentially and hence very sensitive to diameter and length reduction through heat. The apparatus includes a furnace wh... | 04/24/2001 |
| 6221301 | Method of producing thermoplastic resin films and apparatus for producing the same Method and apparatus for producing thermoplastic resin film which allows a biaxially oriented polyester film to be formed at a high speed of 400 m/min or more. In the method, a molten thermoplastic resin film is brought into contact with a cooling medium,... | 04/24/2001 |
| 6211503 | Device and method of heating components made of microwave absorbing plastic With a device for heating parts 8 made of a microwave absorbing plastic and having a microwave generator 1 that generates microwaves of a certain wavelength, an antenna 4 to which the microwaves are conducted, having at least one free end 5 and a device 6... | 04/03/2001 |
| 6203306 | Apparatus for manufacturing a rubber-metal plate composite An apparatus for heating a rubber-metal plate composite formed of a plurality of unvulcanized rubber layers and metal plates, each being overlaid alternately, by induction heating, includes an induction coil for applying a magnetic field to the composite ... | 03/20/2001 |
| 6109903 | Apparatus for manufacturing a rubber-metal plate composite A vulcanized rubber-metal plate composite is obtained by overlaying a plurality of unvulcanized rubber layers and metal plates alternately and heating thereof by magnetic induction heating. The vulcanized rubber-metal plate composite is obtained by placin... | 08/29/2000 |
| 6033198 | Apparatus for the formation and polarization of micromagnets A method for making micromagnets and magnets with a micro-polarization pattern on at least one surface thereof. The method includes the steps of molding a ceramic mold form including a cavity therein having a predetermined shape and a serpentine conduit p... | 03/07/2000 |
| 6008480 | Induction heating apparatus and method for fusing battery cell terminals An induction heating method and apparatus for simultaneously and efficiently fusing battery cell terminal posts and bushings in a battery production line. The apparatus includes an induction heating generator having a T-shaped bus bar for symmetrically su... | 12/28/1999 |
| 6001299 | Process and apparatus for manufacturing an electret article A process for electret treatment is described, involving (1) placing the dielectric article between a combination of a first ion-repulsive electrode and a first ion-attractive electrode and between a combination of a second ion-repulsive electrode and a second... | 12/14/1999 |
| 5942259 | Method and apparatus of controlling temperature of injection preform for stretch blow molding A preform heating method for heating a preform for a stretch blow molding is executed by an apparatus which comprises an outer heating die having a cavity for the preform, a thermal-insulating pot surrounding the outer heating die and a high-frequency hea... | 08/24/1999 |
| 5939012 | Method and apparatus for manufacture of carbonaceous articles A carbonaceous article is made by baking paste under continuously applied high pressure. The paste is extruded as it is baked to form the article, and the article may be further machined after baking. A force opposing extrusion is applied to the article t... | 08/17/1999 |
| 5935476 | Device for heating a press tool using magnetic induction heating; press having such a device, and method of manufacture A device for heating a press tool (4), which is mounted in a press (3) for manufacturing products wholly or partially of plastic or composite, consists of a core (1) of electric sheet steel, a coil arrangement (9, 10, 11) placed around the core (1), and a... | 08/10/1999 |
| 5876656 | Method of fabricating a molding With an auxiliary electrode having a shape corresponding to the end of a workpiece attached to an upper electrode of a high frequency heater for high-frequency heating the end of the workpiece extruded, the workpiece is high-frequency heated intensively a... | 03/02/1999 |
| 5872352 | Swingable induction heating chamber for melting ingot for metal casting A heating machine for heating an ingot of a metal such as a magnesium alloy. The heating machine has a heating chamber equipped with a RF induction coil capable of swinging about a horizontally axis. The coil is placed horizontally, and the metal ingot is... | 02/16/1999 |
| 5837183 | Golf ball molding method and apparatus A golf ball molding apparatus includes a mold comprising a pair of upper and lower mold halves (1 and 2) adapted to be mated to define a spherical cavity therebetween, each mold half being formed of a non-magnetic material and having a thin film layer (4)... | 11/17/1998 |
| 5834743 | Induction heating apparatus and method for fusing intercell connectors to battery cell terminals An apparatus and method for fusing intercell connectors to battery cell terminal posts. The apparatus includes inexpensive, non-metallic molds, each having a mold opening and being positionable onto a connector with the mold opening in aligned relation to... | 11/10/1998 |
| 5834037 | Apparatus for making insignias with raised designs A method and apparatus for making insignias with a raised design is capable of providing more aesthetic appearance to the insignias thus made. A base material consisting of a base sheet and a surface sheet overlaying the base sheet is prepared for making ... | 11/10/1998 |
| 5800839 | Plastic magnet injection molding machine A plastic magnet injection molding machine comprising a pair of exciting coils respectively embedded into a fixed plate and a movable plate along with respective seats and a metal mold including ferromagnetic central members and non-magnetic peripheral me... | 09/01/1998 |
| 5770143 | Method for liquid thermosetting resin molding using radiofrequency wave heating A method and apparatus for liquid thermoset resin or polymer molding using electromagnetic waves (particularly radiofrequency waves or microwaves), is described. The method and apparatus uses a metal mold (10, 212) with a cavity (401) for the molding as w... | 06/23/1998 |
| 5762972 | Apparatus for heating a mold for an injection molding system An apparatus performs induction heating or dielectric heating of a mold for an injection molding system up to a desired temperature within a short time by using high frequencies or microwaves. The electric current of high frequency generated from a high f... | 06/09/1998 |
| 5653778 | Molding device comprising microwave generator and a microwave oven A device for molding products made of glass or a synthetic resin which device has a microwave generator, a microwave oven coupled to the generator and mold parts movable relative to each other provided in the microwave oven for forming molds for holding a... | 08/05/1997 |
| 5641449 | Method and apparatus for high-speed drying and consolidating of structural fiberboard Methods and apparatus for rapidly drying and compacting wet fiber mats are disclosed. Rapid drying is produced by heating the wet fiber mats with a combination of radiowave energy and conductive heating. As the fiber mats are heated, three-dimensional com... | 06/24/1997 |
| 5622669 | Process and apparatus for the vulcanizing of tires A tire vulcanization apparatus in which an encaser 3 makes it possible to introduce a tire into a mold 1 and, by means of inductors 42, transfers to the mold heat energy necessary for vulcanization and in which a chamber 5 receives several molds 1 and mak... | 04/22/1997 |
| 5609891 | Method to treat materials by microwave A device for microwave treatment of materials includes a mold (1) used to hold the material (3) to be treated and a microwave generator which is used to apply to the mold (1) the microwave energy necessary for treatment of the material. The mold includes ... | 03/11/1997 |
| 5599412 | Method and apparatus for producing aligned cholesteric liquid crystal inks In color printing, and in the fine arts, cholesteric liquid crystal (CLC) color inks are known to possess much higher color saturation and brightness than conventional pigment and dyed based inks. However, prior art CLC ink formulations are inconvenient b... | 02/04/1997 |
| 5589260 | Method and apparatus for producing plastic products A method and apparatus for producing plastic products from waste materials by: cutting into pieces a thermoplastic material having a loss factor higher than 0.005 such as to have a high absorbence of radio-frequency radiation, mixing the pieces with at le... | 12/31/1996 |
| 5486320 | Method of depolarizing a ferroelectric material using electrical means and its application to obtain a ferroelectric material of reinforced dielectric strength An electrical procedure depolarizes completely or partially a ferroelectric material which had been polarized before in at least one of its regions. A low-frequency alternating electric field is applied to the material whose amplitude exceeds the coercive... | 01/23/1996 |
| 5483043 | Induction heating of polymer matrix composites in a mold press Induction heating is utilized to heat polymer matrix composites containing electrically conductive fibers. This is accomplished with an apparatus having a mold with first and second cores positioned to receive a workpiece therebetween and first and second... | 01/09/1996 |
