Class 425/4C - Continuously

Subclass of Class 425 - Plastic article or earthenware shaping or treating: apparatus
No. of patents: 189
Last issue date: 01/03/2012

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Number	Title	Issue Date
8087917	Plant for continuously manufacturing a foam layer to form rest articles A plant for manufacturing a continuous latex foam layer (2) to form mattresses (6) provided with cells (5). The plant comprises a plurality of laying planes (7) provided with a plurality of separate tables (13) separately arranged ...	01/03/2012
7654807	Method and system for generating foam for the manufacture of gypsum products A method for generating foam for gypsum product manufacturing includes injecting water through a conduit and injecting a foaming agent through the conduit to form a first solution comprising the water and the foaming agent. The method includes straining the first so...	02/02/2010
7377763	Extrusion apparatus for producing a cable An extrusion method and apparatus (11) for producing a cable (1, 101) including at least one core (7) comprising at least one transmissive element (2, 40), and at least one pair of coating layers (8, 9) arranged at a radially outer...	05/27/2008
7326040	Process and plant for continuous manufacture of a foam layer Plant for manufacturing latex foam layer of unlimited length and having lower and upper recesses. A plurality of laying planes provided with lower protuberances proceeds between an injection station and a layer removing station. Foam provided with lower recesses is ...	02/05/2008
7318713	Polymer processing systems including screws Injection molding and blow molding systems that include screws having low L:D ratios are provided. The systems are capable of producing microcellular polymeric materials. In some cases, the systems may be formed by retrofitting conventional polymer processing system...	01/15/2008
7316559	Continuous forming apparatus for three-dimensional foam products A continuous forming apparatus for molding foam material into foam products that includes a first endless belt and a second endless belt that cooperates with the first endless belt to mold the foam material. The continuous forming apparatus may also include a first ...	01/08/2008
7293982	Device for producing physically expanded structural foams during an injection molding process involving the use of dynamic mixing elements Foamed molded articles can be produced during an injection molding process, among other things, by utilizing physical blowing agents. Existing technologies differ to the greatest possible extent in the manner how the blowing agent is introduced into the melt. One po...	11/13/2007
7293594	Process for the production of sandwich elements from reactive plastics material The invention relates to a process for the production of sandwich elements (so-called panels), in which the rising reactive mixture is guided, when it rises, through guide elements arranged between the upper and lower outer layers. This process produces void-free pa...	11/13/2007
7281917	Extrusion/reaction injection molding system A method of manufacturing an extruded part having an exterior shell and a core foam material. The method includes extruding the exterior shell from an extrusion die, and reaction injection molding the core foam material within an interior of the exterior shell using...	10/16/2007
7278842	Apparatus for the production of polyurethane sandwich elements The present invention relates to a process for the continuous production of polyurethane sandwich elements comprising an upper outer layer and a lower outer layer and a layer of cellular polyurethane lying in between, which is firmly bonded to the outer layers. This...	10/09/2007
7270536	Screw tip and molding system apparatus A screw tip for use in a molding system apparatus is disclosed. The screw tip includes a connection section and screw tip head section. The screw tip head houses an entry port, or entry ports, an accumulation chamber, and a check valve chamber. A check valve is prov...	09/18/2007
7267534	Methods for manufacturing foam material including systems with pressure restriction element The invention provides systems, methods, and articles useful in the production of foams, and, in particular microcellular foams. The systems include a restriction element that reduces the backflow of polymer melt in an extruder while polymeric material is injected i...	09/11/2007
7264757	Controllable microscopic bubble nucleation in fluid polymer material production method and its apparatus A controllable microscopic bubble nucleation in fluid polymer material production method and apparatus utilizing a gas pipe disposed in the conveyance screw shaft of an injection or extraction forming mechanism and a microbubble generating component, such as a micro...	09/04/2007
7211206	Continuous forming system utilizing up to six endless belts A system for providing shape and/or surface features to a moldable material includes, in an exemplary embodiment, at least two first opposed flat endless belts spaced apart a first distance, with each having an inner surface and an outer surface. The system also inc...	05/01/2007
7186102	Apparatus and method for low-density cellular wood plastic composites A low-pressure CO2 tank or an air compressor with a refrigerated air dryer is attached either at or after the vent zone of a standard twin-screw extruder. During or after extrusion, the gas is dissolved in the wood-plastic melt. The CO2 expands...	03/06/2007
7179410	Foam plastics manufacturing method and machine Production of foamed materials in a horizontal machine, and said machine itself, reactants being fed to a conveyor at one end of the machine and foam produced being removed at the other end, wherein the foam is generated in an expansion chamber defined at its inlet ...	02/20/2007
7163388	Method and apparatus for incorporating lumens into the wall of a tubular extrusion A polymer extrusion head for forming continuous shapes having one or more lumens therein. The head includes an extrusion mandrel and die. At least one lumen pipe is disposed radially through a port in the die to intersect the polymer flow in the annular region betwe...	01/16/2007
7150614	Horizontal vacuum chamber seal control device Disclosed is an apparatus and a corresponding method for producing a continuous foamed extrudate product in which the extrusion and initial expansion of the foamed extrudate is conducted within a chamber under a partial vacuum. The foamed extrudate is then removed f...	12/19/2006
7150615	Molding machine for injection foaming A process for injection-foaming a thermoplastic resin by using an injection molding machine with a two-stage-compression screw, injecting a physical foaming agent into the cylinder of the machine at a pressure lower than the storage pressure of the physical foaming ...	12/19/2006
7138077	Process and installation for the production of foam in a continuous slabstock foam process The invention relates to an installation and a process for the production of foam in a continuous block foam process in which the height of a foam-forming mixture along a conveyor is measured and a correcting variable as a function of deviation of the actual height ...	11/21/2006
7108495	Apparatus for continuous forming shaped polymeric articles This invention relates to methods and apparatus for manufacturing shaped polymeric articles by substantially continuous vacuum forming. The method includes providing a sheet of hot polymeric material which is disposed onto a rotating belt having a mold impression. V...	09/19/2006
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 at elevated temperature. This pre-treatment step is followed by a main...	09/19/2006
7101163	Process and apparatus for the continuous production of slabstock foam Slabstock foam free of cavities can be produced without any restriction, i.e. also from rapidly reacting chemical systems, by introducing the liquid reaction mixture from underneath, in front of, and/or through an optionally swivellable floor plate, wherein the floo...	09/05/2006
7097443	Extruder transition section A method and system are provided that efficiently compound high levels of inorganic filler, processing fluid and silicone polymer at a commercial rate into homogeneous filled and devolatilized silicone compositions. In the method, filled silicone compositions are co...	08/29/2006
7097438	Foaming agent charging and mixing device A foaming agent charging and mixing device comprises at least one mixing device and one foaming agent metering device, wherein the foaming agent charging and mixing device may be arranged between an plasticating screw and a mold. In order to improve the foaming agen...	08/29/2006
7077636	Foam-in-place apparatus, and methods of use and manufacture A foam-in-place apparatus includes a foam containment unit, a foam precursor storage unit, and a foam precursor heating unit, in one embodiment. During operation, the foam precursor heating unit is activated to provide activation heat to one or more foam precursor c...	07/18/2006
7074029	Accumulation, control and accounting of fluid by-product from a solid deposition modeling process A by-product waste material removal system for solid deposition modeling. As excess build and support material is removed during the build as a by-product waste the removal system accumulates, measures, and releases the by-product waste material into a waste recepta...	07/11/2006
7074027	Extrusion die and method for forming dual wall corrugated plastic pipe and dual wall plastic pipe having a foam annular core Extrusion dies for forming dual wall corrugated plastic pipe and dual wall plastic pipe having a foam annular core that provides homogenous melt flow to each axially displaced orifice by means of an individual concentric spiral mandrel are disclosed. Spiral mandrels...	07/11/2006
7073244	Process for machining a flexible foam The invention relates to a process for machining a flexible foam. The flexible foam is treated to temporarily harden the foam. The hardened foam is machined. The foam is then returned to its original flexible state. ...	07/11/2006
7037453	Laminate of metal powder and foaming agent between two metal layers The invention relates to a process for forming a laminate comprising a core of a compressed metal powder mixed with a foaming agent between two metal layers, comprising the successive steps of providing two metal strips and a stock of powder comprising a metal powde...	05/02/2006
7008577	Extrusion head for expanded plastic tubes An extrusion head for the manufacture of tubes including at least one layer of expanded plastic by extruding a stream of molten plastic containing a blowing agent through an annular passage cross section made in the extrusion head. The stream of molten plastic conta...	03/07/2006
7008202	Method and apparatus for forming thermoplastic resin foam The present invention relates to the step of plasticizing a thermoplastic resin material by rotatably driving a screw (20). Also included in the method is the step of injecting an inert gas into a screw cylinder (1) to permeate the melted resin and inj...	03/07/2006
6955779	Method for the continuous production of expanded plastic material for forming panels and the like, and apparatus for carrying out the method A method for the continuous production of expanded plastic material for forming panels and the like, in which during the pouring step, at least one reaction component and a mixture of the remaining components are introduced at high pressure in a pouring channel, by ...	10/18/2005
6946090	Process for making a corrugation-free foam A method for extruding a corrugation-free polystyrene foam with up to 100% carbon dioxide as the blowing agent by extruding the extrudate through an annular die opening so that it contacts a choke ring inner surface. A foam made with the apparatus according to the i...	09/20/2005
6935855	Apparatus for extrusion of water-containing products The inventions relates to an extrusion apparatus suited for water-containing products which heat-expand by internal boiling of water by pressure relief after passing through extrusion nozzles. The apparatus comprises a) an extruder, which at the outlet end thereof c...	08/30/2005
6929763	Injection molding method The invention provides an injection molding method comprising supplying a gas into a molten resin in a plasticizing cylinder and injecting the molten resin having the gas dissolved therein, wherein when the resin is being plasticized, a gas space with a predetermine...	08/16/2005
6929459	Method and apparatus for manufacturing polyurethane foam injected with strand mats A method and an apparatus for manufacturing a polyurethane foam injected with strand mats. After a polyurethane foam solution is sprayed on the strand mats, the strand mats are moved upward and downward by prominences and depressions and then intermittently pressed ...	08/16/2005
6926507	Blowing agent delivery system The invention provides a blowing agent delivery system for introducing a blowing agent into a polymeric foam processing system. The delivery system is designed to discontinuously introduce blowing agent from a continuous source into polymeric material within an extr...	08/09/2005
6926512	Apparatus for extruding foamed polypropylene sheet having improved surface appearance A coat hanger extrusion die wherein the aperture of the die land widens along the extrusion axis of the die to the die exit opening, thereby forming an expansion zone. ...	08/09/2005
6809124	Method for the production block foam The invention relates to a method for the production of polyurethane block foam, wherein a polyurethane reactive mixture containing carbon dioxide is suddenly relieved from a pressure above the pressure breaking the equilibrium of the carbon dioxide to a normal pres...	10/26/2004

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Class 425/4C - Continuously