U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 425/200 - WITH SEPARATE AND DISTINCT UPSTREAM AGITATING OR KNEADING MEANS


Subclass of Class 425 - Plastic article or earthenware shaping or treating: apparatus
Definition: Apparatus including means ahead of a former for agitation,
No. of patents: 93
Last issue date: 01/04/2011


1      
NumberTitleIssue Date
7862322Resin infusion between double flexible tooling system
A resin infusion system uses a housing that has an upper flexible diaphragm and a lower flexible diaphragm such that the two diaphragms form a cavity. A fiber reinforcement mat is positioned within the cavity. A mold is positioned below the lower diaphragm. A flow p...
01/04/2011
7841849Dry material transport and extrusion
A process for making construction material may include mixing predetermined portions of two or more components of cementitious materials without ingredients that would allow the mixture to cure, and separating the un-curable mixture of the two or more components int...
11/30/2010
7318717Method and apparatus for forming fiber reinforced composite parts
A method and apparatus for combining raw fibrous and binding materials in a single mixing step (Step S3), followed by consolidation (Step S5) so as to greatly shorten the overall cycle time to a finished fiber-reinforced composite part. Chopped fibrous...
01/15/2008
7309224Device for preparation of plastic materials for recycling purposes
A device for the preparation of plastics material for recycling purposes has a container (1) with an upper inlet opening (10) for the material. In the container (1), at least one tool (14) rotates about the vertical container axis. This t...
12/18/2007
7275857Apparatus for treating plastics material
A device for treating plastics material, in particular thermoplastic plastics material, has a receiving container (1) which has a base (15) and lateral walls (14). In the receiving container at least [one] disc (17) is arranged close to t...
10/02/2007
7197901Washing machine
The invention provides an apparatus comprising a drum for containing and agitating an article, wherein the drum comprises at least two rotatable portions in rotatable connection with one another, a rotator member in connection with each rotatable portion for rotatin...
04/03/2007
7097442Extruder
An extruder capable of obtaining a treatment volume equal to that of the conventional art without enlarging a screw diameter is provided. The extruder includes screw shafts, a drive unit, and a barrel, in which three or more screw shafts having the same diameter and...
08/29/2006
6969247Injection molding unit with a device for mixing and metering plastic melt and additives
An injection unit for an injection molding machine includes an injection device in the form of a plunger/screw, which is driven axially and rotationally in a housing, and a device intended for mixing and metering plastic melt and including an inlet for introduction ...
11/29/2005
6903308Vacuum cast ceramic fiber insulated band having heating and cooling elements
A ceramic fiber band that can fulfill a plurality of functions in connection with the injection and/or extrusion process of an injection molding or extrusion apparatus (i.e. heat, cool, and insulate), thereby reducing overall energy costs and creating a safer workin...
06/07/2005
6726355Self-cleaning mix head having a longitudinal mixer for a molding system
A mix head assembly including a mix chamber having a mixer rotatably mounted therein. The mixer extends for a longitudinal length and defines a multiple of vanes which agitate the fluid material components as the mixer is rotated. A plunger is movably mounted in the...
04/27/2004
6692669Methods and apparatus for recycling asphalt shingle material into composite board products
Used and manufacturing scrap asphalt shingle material is processed into a relatively coarse material comprising pieces or flakes of a maximum predetermined size. The flakes are finish processed into a composite board product in a method that includes ...
02/17/2004
6543618Process to recover raw rubber compound from semi-finished, reinforced, technical rubber products, especially hoses, before cross-linking, and equipment therefor
A process for recovering raw rubber compounds from unvulcanized reinforced, semi-finished technical rubber products includes pressing the rubber products between metal surfaces heated to a temperature from 50 to 300° C., or preheating the rubber products...
04/08/2003
6525126Method for producing reinforced thermoplastic resin composition and melt-kneading apparatus
A method for producing a reinforced thermoplastic resin composition in a stable manner for long periods of time, comprising providing a melt-kneading apparatus with a plurality of supply ports arranged in line with the direction, along which a molten resi...
02/25/2003
6306322Method and device for filling casting molds with casting resin
The invention concerns a method and device for filling at least one casting mould (10) with a castable, liquid compound, in particular casting resin. In order to decrease the mould-occupation time considerably, the reactivity of the casting compound is fi...
10/23/2001
6302677Apparatus for continuously molding chocolate products
Methods for continuously molding finished chocolate tablets, pieces and the like are disclosed. Apparatus for use with the method, comprise a chilled rotating mold having at least one recess into which liquid chocolate is deposited. Liquid chocolate, is h...
10/16/2001
6143214Mixing and dispensing system for rapidly polymerizing materials
A mixing and dispensing system for reactively combining organic chemical components to produce a rapidly polymerizing material for use in molding and encapsulating small and usually delicate devices, such as electronic components. The system uses a novel ...
11/07/2000
6136246Screw extruder with improved dispersive mixing elements
A screw extruder (10) having a barrel (18) which has a bore (26) defining an inner surface (44) and one or more extruder screws (28), positioned within the bore (26). The extruder screw or screws (28) include a central shaft (34) and one or more screw fli...
10/24/2000
6080346Extrusion apparatus and method and extruded thermoplastic polymer
Polyvinyl alcohol is processed into fiber or pellets for further processing, or directly into water-soluble film, in a screw-and-barrel extruder, which has a slow temperature rise and a mild kneading action achieved by a non-stick coating applied to the s...
06/27/2000
5935618Apparatus for manufacturing molded materials solidified by sulfur
An apparatus for manufacturing molded materials solidified by sulfur includes an apparatus for bringing the water content of a solid raw material to be mixed with sulfur, such as slag and dust resulting from steel-making, to 3% by weight or below, an appa...
08/10/1999
5932159Screw extruder with improved dispersive mixing
A screw extruder (10), including a barrel (18) having a bore (26) which defines an inner surface (24). At least one extruder screw (28) is positioned within the bore (26), each screw (28) further including a central shaft (34) and at least one screw fligh...
08/03/1999
5851562Instant mixer spin pack
A multiplate spin pack receives metered molten polymer and metered amounts of additive components selectively proportioned to produce desired characteristics in extruded fiber. The additive components are mixed together and blended with the polymer by pas...
12/22/1998
5837295Scraper blades for extruder
Angled scraper blades provided on the end of a screw shaft of an extruder provide thrust for propelling polymer toward the die opening of the extruder. The scraper blades help prevent trapping of polymer between the shaft and the die plate of the extruder...
11/17/1998
5811048Process 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 homogenizer positioned in the flow stream and incorporati...
09/22/1998
5700885Single screw method and apparatus
An extruder screw having a plurality of plasticating sections sufficient for plasticating polymeric materials of different bulk density....
12/23/1997
5679381Systems for manufacturing sheets from hydraulically settable compositions
Compositions and methods for manufacturing containers from sheets having a hydraulically settable matrix are disclosed. Suitable compositions are prepared by mixing together a hydraulic binder, water, and appropriate additives (such as aggregates, fibers,...
10/21/1997
5637331Spin system for thermoplastic yarns
A spin system for thermoplastic yarns is provided with a melt line, in which the main flow of the melt is transported to a distributor pump. The distributor pump comprises several individual pumps, which divide the main melt flow into several partial flow...
06/10/1997
5585122Apparatus for converting raw materials into a molded end product
A recycling apparatus in which high density polyethylene, thermal polyolfin, or coated or non-coated oriented polypropylene and rubber are mixed into a batch and converted to useful molded products. The apparatus includes a first mixer, a second mixer, a ...
12/17/1996
5545029Equipment for filling one or more casting molds with castable, liquid materials
Equipment, in particular pressure gelling equipment, is provided to fill one or more casting molds with castable, liquid materials of which the components are fed by pumps through closable conduits to at least one plunger-cylinder system from where the co...
08/13/1996
5536517Multidie positive displacement metering apparatus and process
This apparatus provides positive displacement synchronized metering of pressurized food material to a plurality of dies using several positive displacement metering apparatus. The metering is provided by the energy of pressurized material itself, or, for ...
07/16/1996
5498151Mixing head for molding machine
A mixing head for a molding machine includes a mixing chamber into which reaction materials are injected from nozzles communicating therewith, toward a closed end of the chamber and at acute angles with respect to the longitudinal axis of the chamber, the...
03/12/1996
5453249Apparatus for producing a flowable reaction mixture from at least two flowable reaction components
In the production of a flowable reaction mixture of at least two flowable, also not readily miscible, reaction components which react completely with each other to form solid substance or foam material, a rapid abatement of the mixture flow is achieved wi...
09/26/1995
5445513Apparatus for enhancing concentration
An apparatus is disclosed for enhancing the concentration of a second material within a first material, by liquefying the first material and introducing the second material within the first material. The first and second materials are introduced into a co...
08/29/1995
5413473Mechanism for mounting and dismounting mixer in an automatic noodle making machine
A kneading member and a cylinder is easily mounted on and dismounted from a flour kneading unit in an automatic noodle making machine, and a mechanism for mounting and dismounting the mixer of the noodle making machine in which an assembly of the kneading...
05/09/1995
5318431Process and apparatus for preparing toner particles
Disclosed is an apparatus for obtaining toner particles with improved dispersion of additive components therein comprised of a toner extrusion device containing therein a blending chamber, a screw mixing means, a heating means, a toner supply means, and a...
06/07/1994
5306132Process and apparatus for degassing plastic melt in a screw extruder
A process and a degassing unit for the degassing of plastic melt in a screw extruder in which a surface of the degassing unit facing the screws of the extruder are heated to prevent deposition of entrained plastic particles, particularly at the corners or...
04/26/1994
5275545Vacuum cast molding apparatus
A vacuum cast molding apparatus includes a plurality of vacuum chambers which can be brought into communication with each other, a plurality of depressurizing devices to evacuate each of the vacuum chambers respectively, a plurality of mixing and injectin...
01/04/1994
5266261Process and apparatus for the production of molded articles from hot-setting plastics of several components by low-pressure casting
In the production of molded articles from hot setting plastics with several components, these components are brought together under laminar flow before mixing. An apparatus for such production has a chamber (2) positioned on the back end of a mixer (6), i...
11/30/1993
5264261Fibre reinforced polymer compositions and process and apparatus for production thereof
Fibrous network structures are produced within liquid polymer resins by passing the fiber-containing resin along a channel having a plurality of sets of flow modifying elements which establish a regulated succession of velocity profiles for the principal ...
11/23/1993
5234324Extruder for highly foamed plastic material having a reduced diameter mixing space for introducing an inert foaming agent
The present invention provides an extruder for highly foamed plastic material for coating a central conductor of a coaxial insulated cable with an insulator made of a mixture of a plastic material, preferably polyethylene, and an inert gas, such as nitrog...
08/10/1993
5200205Extruder barrel temperature regulation apparatus
Extruder barrel temperature control apparatus in the form of a plurality of axially spaced tubular shells positioned in end-to-end relationship on the outer surface of a tubular extruder barrel. Each of the shells includes individual resistance heater ele...
04/06/1993
1      
 
Sign InRegister
Username  
Password   
forgot password?