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7374797 |
Continuous combined pigmented wax compounding and bichromal sphere fabrication process
A system and method for the continuous fabrication of bichromal spheres by introducing continuous streams of differently colored, pigmented polymer melts to substantially opposite sides of a...
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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...
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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...
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7276271 |
Polymer fiber tubular structure having kinking resistance
An apparatus for forming a tubular structure from a liquefied polymer, the apparatus comprising: (a) a dispenser for dispensing the liquefied polymer; (b) a precipitation electrode being at a first...
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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...
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7134857 |
Electrospinning of fibers using a rotatable spray head
Apparatus and method for electrospinning fibers in which the apparatus includes a spray head having a longitudinal axis and including at least one electrospinning element disposed in a peripheral...
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7115220 |
Vascular prosthesis and method for production thereof
A vascular prosthesis comprising a first layer having a predetermined first porosity and a second layer having a predetermined second porosity, wherein the first layer and the second layer are each...
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7008205 |
Installation for producing a spunbonded fabric web whereof the diffuser is distant from the drawing slot device
The invention concerns an installation for producing a spunbonded fabric web comprising a diffuser defining for the filaments a passage with diverging cross-section, and mounted a certain distance...
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6991702 |
Electronic spinning apparatus
An electrospinning apparatus including a spinning dope main tank, a metering pump, a nozzle block, a collector positioned at the lower end of the nozzle block for collecting spun fibers, a voltage...
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6984352 |
Dielectric mold for uniform heating and molding of polymers and composites in microwave ovens
A mold for uniformly heating working material to form a workpiece using a microwave oven. Uniform heating of a workpiece of variable thickness may be obtainied in a microwave oven with a uniform...
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6974316 |
Installation for producing a nonwoven web with very uniform weight
The invention concerns an installation for producing a nonwoven web wherein the distance between the lower edge of the slit drawing device and the upper edge of the diffuser is maintained constant...
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6966762 |
Device for opening and distributing a bundle of filaments when producing a nonwoven textile web
The invention concerns a device for opening and distributing a bundle of filaments when producing a nonwoven textile web by a technique which consists in: extruding melted organic polymer through a...
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6942901 |
Fabrication of particulate tapes by electrophoretic deposition
A single or multi-component particulate tape and a method and apparatus for making the single or multi-component particulate tape. More particularly, the present invention relates to a single or...
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6890475 |
Method and apparatus for manufacturing a thin-walled article
The invention relates to a method for manufacturing a thin-walled article, wherein a single- or multi-component, essentially polymer-based material ( 1 ), such as plastics, elastomers, and/or the...
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6783722 |
Apparatus and method for producing a nonwoven web of filaments
Spunbond nonwoven fabrics are produced with an apparatus which comprises a spinnerette having a plurality of orifices for extruding filaments; an attenuator for receiving and attenuating the...
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6737619 |
Microwave polymerization system for dentistry
A microwave polymerization system for dentistry utilizes specifically controlled microwave energy to cure polymer materials so as to produce dental prosthetics, such as dentures, bridges and...
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6713011 |
Apparatus and methods for electrospinning polymeric fibers and membranes
An apparatus and method for electrospinning polymer fibers and membranes. The method includes electrospinning a polymer fiber from a conducting fluid in the presence of a first electric field...
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6709623 |
Process of and apparatus for making a nonwoven web
Improvements to processes and equipment for the manufacture of nonwoven webs useful in numerous applications including personal care, protective apparel, and industrial products. The fiber and/or...
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6659754 |
Injection molding device
In an injection molding device used to inject a thermoset casting resin into a mold wherein the device includes a source of resin, a mold for receiving and curing the resin, a delivery vessel for...
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6649116 |
Process and apparatus for forming a thin-walled elastomeric article
A process for making thin-walled elastomeric articles. The process includes the steps of electrostatically spraying charged particles of an elastomeric composition into a chamber containing a rigid...
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6638048 |
Apparatus for momentarily heating the surface of a mold
Disclosed herein is a system for momentarily heating the surface of a mold and system thereof. The system comprises a casting material feeder, upper and lower molds, an injection molding control,...
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6616435 |
Apparatus of polymer web by electrospinning process
The present invention relates to an apparatus of polymer web by electrospinning process and manufacturing method thereof, which can manufacture porous polymer web using an electrospinning method....
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6499984 |
Continuous production of pharmaceutical granulation
A single pass, continuous, automated system for producing a pharmaceutical granulation includes multiple feeders to feed powders and liquids, a twin screw processor to granulate, a radio frequency...
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6498327 |
Method for inductive heating and monitoring
A method for transverse flux induction heating using a heating machine including an iron core, that essentially has a U-shape with an opening facing downwards. The legs lie in contact with...
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6479007 |
Apparatus and method for controlling pore size in polymeric membranes and thin films
An apparatus and method for controlling the pore structure of thin polymeric sheets, such as porous membranes and thin films, during solvent casting or interfacial polymerization. The invention may...
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6416706 |
Molding apparatus and method using a robot to introduce and insert into a mold
Apparatus for molding articles from moldable material in a mold includes end of arm tooling for an articulated robot arm associated with the mold, where the end of arm tooling includes an insert...
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6386260 |
Apparatus for providing a web of thermoplastic filaments
An apparatus for providing a uniform web of filaments comprises tube filament transport means exiting through a confined zone of reduced turbulence, which preferably comprises a delivery slot. The...
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6376148 |
Layer manufacturing using electrostatic imaging and lamination
A solid freeform fabrication method and related apparatus for fabricating a three-dimensional object from successive layers of a primary body-building powder material and a binder powder in...
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6365088 |
Electret treatment of high loft and low density nonwoven webs
The process of forming an electret nonwoven web, the process including the steps of providing a nonwoven web, generating a DC corona discharge from an apparatus including an anode electrically...
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6310333 |
Induction heating method for manifold in hot runner mold
In an induction heating method 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...
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6277320 |
Melt spinning method and its apparatus
A melt spinning apparatus that prevents filaments passing through an unstable area from contacting one another. In a melt spinning method for thinning and solidifying each molten filament F ejected...
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6273702 |
Apparatus for manufacturing prophylactic devices
Prophylactic devices are made in an inert atmosphere by cooling mandrels on which the devices are to be deposited, dipping the mandrels into a polymeric material in a solvent/carrier and a mold...
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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...
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6217308 |
Multicavity blow molding machine for producing hollow bodies
A blow-molding apparatus has an ionization bar extending along the row of extruded parisons to dissipate electrostatic charge thereon. The ionization bar comprises a conductive strip received in an...
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6136257 |
Apparatus and method for producing a three-dimensional object and for applying a layer of a powder material to a surface
An apparatus is described for producing a three-dimensional object from a powder material which includes powder particles and which is solidifiable by exposure to electromagnetic radiation. The...
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6120278 |
Device for laying a film emerging from a slot die onto a rotating take-off roll
A device for laying a molten film 3 emerging from a slot die 2 onto a rotating take-off chill roll 1 has at least one electrode which is arranged parallel to and at a short distance from the...
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6066285 |
Solid freeform fabrication using power deposition
A solid freeform fabrication process and apparatus for producing three dimensional parts using layer-by-layer deposition of support powder and part compositional powder, where the deposition is...
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6007759 |
Method for manufacturing an injection moulded article
A method for manufacturing an injection molded article on a surface on which a label is arranged and a device for manufacturing the injection molded article on the surface of which the label is...
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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...
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5958323 |
Mandrel of high frequency heating type and method for producing cured rubber hose using same
A mandrel of a high frequency heating type, comprising a conductive layer comprising a metal member having an aspect ratio of at least 100, in a proportion of at least 60% by volume, and a surface...
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5895622 |
Method and apparatus for composite manufacture
A composite manufacturing system moves a multi-fiber tow through a processing space. A resin particle source provides particles to the space. This source may include an airstream entrained with...
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5894002 |
Process and apparatus for the manufacture of a contact lens
In a process for the manufacture of contact lenses, a polymerizable contact lens material is dispensed into a mould half (1) and the mould is subsequently closed by means of the second mould half...
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5888340 |
Method and apparatus for aligning discontinuous fibers
A method and apparatus for aligning discontinuous fibers (F 101, 212) is described. A feeder apparatus (20, 120, 220, 220A) is used to align the fibers in a horizontal plane for feeding to the...
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5808282 |
Microwave sintering process
A microwave susceptor bed useful for sintering ceramics, ceramic composites and metal powders is disclosed. The susceptor bed contains granules of a major amount of a microwave susceptor material,...
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5750152 |
Wand purging for electrostatic charging system in flash spinning apparatus
This invention relates to a method and apparatus for sweeping dust and debris from the needles of a wand which is for applying an electrostatic charge to a plexifilamentary film-fibril web. The...
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5733584 |
Apparatus for the manufacture of films
The invention concerns an apparatus for the manufacture of films, in particular thin or very thin films, with a rotating roller with which a plastically deformable film preferably supplied by a...
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5731011 |
Apparatus for forming a fibrous sheet
An apparatus for adjusting the path that a web formed by striking a contoured surface baffle will take as it descends to a collection surface, in which the baffle is mounted on a pivot plate which...
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5676791 |
Device for producing extrusion-coated laminates
The invention describes a device and a process for producing extrusion-coated laminates. The extrusion device contains an extruder nozzle with nozzle lip, a cooling roller and a contact roller,...
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5665298 |
Method for the manufacture of pneumatic vehicle tires using microwave energy
A method for the manufacture of pneumatic vehicle tires with a carcass extending between two bead rings and a breaker disposed between carcass and tread is described in which a tire blank is built...
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5643524 |
Corona charging of flash spun plexifilamentary film-fibril webs in poor charging environments
This invention relates to flash spinning a plexifilamentary film-fibril strand and laying it down into sheet material including the step of subjecting the strand to an electrostatic charge. The...
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