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7594807 |
Twin-screw extruder
In a twin-screw extruder including a barrel, which has two screws disposed in parallel in its inside and an opening at one edge, and an extrusion molding die disposed to the opening side of the...
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7530463 |
Backwashable filtering device
A backwashable filtering device for thermoplastic plastics material is disclosed. The device can filter thermoplastic plastics material through one or more nests of screens in the filtering...
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7448318 |
Compacting apparatus
A machining waste metal recycling machine has an in-feed hopper. The hopper uses paired augers to move the waste metal through the hopper to a cutting and transporting auger. The hopper augers are...
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7438550 |
Plant for the preparation of materials
A material processing plant comprises a first screw-type extruding machine and a second screw-type extruding machine downstream thereof. The screw-type extruding machines are connected to one...
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7419592 |
Device for filtering a fluid especially for plastic-processing installations
The invention relates to a device for filtering a fluid, especially a liquefied plastic, said device comprising a housing, a supply channel, a discharge channel and optionally backwash channels. At...
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7411163 |
Device for providing a melt
The invention relates to a device ( 1 ) for providing a melt, in particular a plastic melt. Said device ( 1 ) comprises a feed unit ( 2 ) for material components, at least one purification unit ( 4...
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7303706 |
Device for producing expanded plastic moulded parts in an injection moulding process, using compressed physical expansion fluids
The manufacture of foamed polymer trim parts making use of physical blowing agents requires the diffusion and sorption of the blowing agent in the polymer melt. Said diffusion and sorption are...
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7276194 |
Method and apparatus for extruding a ceramic material
A method is provided for manufacturing a thin-walled honeycomb ceramic substrate by extruding a plasticized ceramic batch material through a filter screen having wedge shaped filter wires to remove...
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7267234 |
Backflushable filter device for molten material and distribution unit for a filter device of this type
A backflushable filtering apparatus for a molten material, particularly for a plastic melt, comprises a housing ( 1 ) in which a sieving arrangement ( 17 ) is provided which includes at least two...
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7175411 |
Process for the production of a cable and device for performing this process
The present invention concerns a process for producting cables, in particular cables for the distribution of electrical energy or cables for telecommunications, more particularly, cables having at...
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7124895 |
Device for continuous filtration of material blends
A device for the continuous filtration of material blends, in particular for separating impurities from plastic melts. A housing has a hollow cylindrical filter disposed inside. An inside chamber...
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7108500 |
Process and apparatus for recycling of PET-material
Within a process for recycling of PET-material and/or objects of PET, the PET-material to be processed is heated and dried in the course of a pre-treatment step and simultaneously is crystallized...
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7090480 |
Method and apparatus for molding ceramic sheet
A method and an apparatus capable of extrusion molding a comparatively wide, thin ceramic sheet using a screw extruder while suppressing the wrinkling thereof. The molding apparatus includes a...
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7077639 |
Spiral-webbed mandrel
An mandrel for extrusion of hollow bodies, such as, polyvinyl chloride (PVC) hard, compact, and foamed pipes, includes an inner collar and an outer collar, and webs radially joining the inner...
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6994795 |
Device and method for the filtration of viscous material
An apparatus for filtering viscous material, in particular thermoplastic synthetic plastic material, comprises a screw ( 24 ), which presses the material to be cleaned from an upstream conduit ( 3...
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6893151 |
Device for conveying elastomeric media, use of the device, as well as two operating methods
A system for delivering elastomeric media comprises a gear pump and a screw-type extruder which, viewed in the delivery direction of the pumping medium, is arranged in front of the gear pump and...
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6852260 |
Process for preparing cleansing bars having well-defined platelet striations therein
A process for preparing a cleansing bar having well-defined platelet striations therein which comprises extruding a cleansing bar composition having platelets therein to form a cleansing bar using...
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6702966 |
Method for manufacturing cement fiber sheets
A method is provided for manufacturing cement fiber sheets by supplying slurry primarily including fibers and cement as main material components onto a permeable sheet, and suctioning and...
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6676395 |
Equipment for extruding an expanded polymer sheet or plate
Equipment for extruding an expanded polymer sheet or plate comprising an apparatus for the gravimetric loading ( 11 ) of a certain number of component polymers and/or mineral fillers, an extruding...
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6641728 |
Device for filtering a liquid, particularly for filtering a polymer plastic melt
A device for filtering a liquid, in particular for filtering a polymer plastic melt, has a housing which includes an inlet channel, a connecting channel situated in a shaft and a discharge channel,...
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6582598 |
Wave filter for rotary filter
Rotary filters, known within the polymer melt filtration industry, are improved by the provision of wave shaped filter support plates within the filter chambers of a rotatable disc of a filter....
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6422852 |
Filter device for extruders and injection moulding machines
A filter device for extruders and injection moulding machines designed to process thermoplastics, comprising filter elements that are fitted in at least two separate ducts of a housing between at...
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6419474 |
Injection-molding nozzle assembly
An extruder has an outlet fitting having a passage with a frustoconical portion centered on an axis. A flow controller in the passage is formed with a conical extension centered on the axis and...
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RE37681 |
Filter member and screen changer for use in resin extruder
A filter member includes a breaker plate having an increased filtering area without any deterioration in screen back-up capability. This filter member is adapted to filter off impurities of resin...
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6342156 |
Multi-segment continuous filtration system
A multi-segment filter system is provided for continuous filtration of high viscosity materials, such as polymer melts. In particular, each segment comprises a filter screen positioned between a...
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6325217 |
Backflush attachment for a filtering device
A backflush attachment for a filtering device, in particular for a plastics melt filter, the backflush attachment comprising a housing having guide channels following an entry bore, as well as...
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6325922 |
Filter device for cleaning plastics melts
A filter device for filtering plastic melts includes a filter wheel having cavities which are covered by screening elements. A pressure sensor is provided in a melt inflow line upstream of the...
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6312246 |
Apparatus to produce pasta
Apparatus to produce pasta used in particular, but not exclusively, in the domestic field, comprising a box-like structure (11), a mixing assembly (12) and an extrusion assembly (13), the mixing...
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6309570 |
Vacuum extrusion system for production of cement-based articles
A system for making extruded cement-based articles. The process can include forming a cement-based feed mixture including water, aggregate and binder and directing the feed mixture to a vacuum...
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6290846 |
Device for filtering molten plastic
A device for the filtering of a fluid stream, particularly for the filtering or a molten plastic, with at least one fluid supply duct or a first connection area for connecting with an existing...
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6270703 |
Polymer filteration apparatus and method of use
The present invention includes a filtration apparatus for an injection molding machine where the injection molding machine includes a screw housed within a bore for generating molten polymer. A tip...
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6261079 |
Screen exchanging device
At a distal end of a slide bar 4 which is axially slidably inserted in a through hole 1a of a housing 1 is formed a cylindrical filter chamber 7. The filter chamber 7 has a communicating hole 6...
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6244849 |
Extruder die assembly
An extruder die assembly adapted for attachment to the output end of an extruder barrel. The die assembly includes an adapter member and a die head. The adapter member is attached to the extruder...
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6238558 |
Filter changer with bimodal sealing means
A slide plate filter changer having an upstream seal ring bearing on the filter carrier in the operative position to prevent fluid leakage into the filter carrier channel. The seal ring is...
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6196820 |
Device for filtering plastics in injection molding machines
A process and a corresponding device for filtering plastics in an injection molding machine having a plasticizing unit and a mold cavity. A slide having a receptacle for a filter element is...
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6196823 |
Die clamp assembly
A die clamp assembly for an extruder comprises at least one passage through which product being extruded flows. The die clamp assembly is attached to an extruder and comprises a last barrel that is...
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6168411 |
Polymer filtration method and apparatus
The present invention includes a filtration apparatus for an injection molding machine where the injection molding machine includes a screw housed within a bore for generating molten polymer. A tip...
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6153093 |
Filter screen pack for extrusion die
The filter intercepts dirt emanating from a molten-polymer extruder. The filter is clamped between perforated support plates, and a rotor sweeps the holes in the upstream plate. The rotor defines a...
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6063296 |
Agglomerate removal and dewatering apparatus
The present invention provide apparatus and method for removing agglomerates from a slurry comprising a transport fluid and particulate matter carried by the transport fluid. The present invention...
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6010625 |
Screen changer with controlled gap
A continuous flow filter changer for a fluid having a filter carrier assembly for intermittent sliding transition displacements in a filter channel to align adjacent filters thereon successively...
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5922194 |
Filter changing device for plastics processing plants
In a filter changing device with a flow path for the plastic in which one two or more filters can be inserted into the flow path as desired, the invention proposes to fit the filter support in such...
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5916443 |
Filter apparatus for the uniform filtering of plastic melts
In a filter apparatus 1, a central filter rod 6 is arranged in the interior 14 of a filter housing 2, the diameter d of which filter rod tapers in the direction of flow of the plastic melt. On the...
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5876648 |
Two-roller machine and method for pressure treatment of granular material
In order to assure that an adequately small delivery granulation is offered to the nip of a two-roller machine, preferably a high-pressure roller press for interparticle crushing, namely for an...
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5833848 |
Filter for high-viscosity fluids
A filter for high-viscosity fluids can be used in small to large-sized units, shows no thermal deterioration of the contents, and allows simple, rapid, and safe exchanging of the filter units and...
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5811048 |
Process of and apparatus for homogenizing a flow stream
A method and apparatus for homogenizing a flow stream of plasticized material supplied from an extruder, to reduce viscosity gradients causing defects in extruded products, wherein a flow inverting...
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5770067 |
Device for filtering a fluid
A device for filtering a fluid, particularly a molten plastic, with a fluid-supplying canal and a fluid-draining canal is described, whereby two plate-like filters are movably arranged in and...
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5752539 |
Two flow control means using partially solidified plug
Filtering apparatus includes two or more passages (2) acting in parallel, each having an extended filter (12) which passes through inlet and outlet ports (48, 49), flowable preferably sealed by...
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5741532 |
Apparatus for introducing additives into a grid spinning system
An apparatus for melting particulate polymeric material includes a melting grid and a molten polymer reservoir beneath the grid. The apparatus has a lateral cross-sectional contour defined by...
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5738884 |
Multi-stage vacuum kneading-extruder apparatus
A multi-stage vacuum kneading-extruder includes a degassing chamber for storing material to be processed and reducing pressure of space for storing the material, a kneading-conveyer device for...
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5683578 |
Filter valve system for regulating, filtering, and dispensing a flow of hot melt materials and adhesives
An apparatus for controlling and filtering the flow or viscous fluid in a material melting and dispensing device is disclosed. The apparatus includes a rotatable valve assembly having a filter...
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