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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7566163 | Screw set for extruder A rotor segment is assembled in a screw set for use in a twin-screw extruder for mixing and dispersing a material to be kneaded into a kneaded product having a desired state of kneading. The rotor segment has a plurality of kneading blades that provide a plurality o... | 07/28/2009 |
| 7387426 | Extruder screw with mixing section An extruder screw mixing section has a plurality of threads formed on a body of the screw with a pitch defining mixing channels for moving material in a direction from a feed end to a discharge end of the screw. The threads and the mixing channels are interrupted by... | 06/17/2008 |
| 7372101 | Sub-lithographics opening for back contact or back gate A low resistance buried back contact for SOI devices. A trench is etched in an insulating layer at minimum lithographic dimension, and sidewalls are deposited in the trench to decrease its width to sublithographic dimension. Conducting material is deposited in the t... | 05/13/2008 |
| 7354188 | Gear pump having input and output screw shafts with a decreasing flight depth toward a gear section in transfer mix areas The invention relates to a gear pump which is suitable for delivering highly viscous materials. The aim of the invention is to provide a gear pump having a low-wear and low-maintenance bearing system, high output and good self-cleaning properties. For this purpose, ... | 04/08/2008 |
| 7350960 | Dual flight rotors for continuous mixer assembly In the field of continuous mixer apparatus for commingling particulate thermoplastic materials, employing at least one main rotor with a helical profile body configuration, an improved profile for the peripheral threads is provided. It presents a first upstream feed... | 04/01/2008 |
| 7350959 | Pin extruder with gear pump A conveying apparatus comprising an extruder having a housing, a gear pump connected to the extruder, an extruder cylinder rotatably mounted in the housing, and a plurality of pins extending radially outwardly from the extruder cylinder. The extruder housing is prov... | 04/01/2008 |
| 7316500 | Pin extruder A pin extruder for conveying polymeric material, especially elastomeric material, comprising a stationary extruder housing and an extruder screw rotatably mounted in the housing. A purality of radially outwardly extending pins are disposed on the extruder screw, at ... | 01/08/2008 |
| 7290923 | Extruder/gear pump assembly An extruder/gear pump assembly is provided having an extruder screw connected to the gear pump. The relative speed of the extruder screw and the gear pump are adjustable by the use of a shaft housed in a cavity of the extruder screw. ... | 11/06/2007 |
| 7284897 | Extruder for continuously working and/or processing flowable materials An extruder has at least three parallel, co-rotating shafts disposed in a cavity therein along a circle. The shafts are equipped with screw elements closely intermeshing over their whole circumference. At least one screw element is formed as a passage screw element ... | 10/23/2007 |
| 7267474 | Plasticating screw A plasticating screw including a grating mixing section provided to enhance mixing of incompatible materials. The screw includes a mixing section including an inlet groove having a closed distal end, a discharge groove circumferentially spaced from the inlet groove,... | 09/11/2007 |
| 7198748 | Injection molding machine and injection molding method for manufacturing foamed shaped parts The injection molding machine comprises a screw plunger (3), which rotates inside an injection unit (2), wherein the screw plunger (3) has, downstream from a metering zone a porous or permeable section (16) which can be charged with a phy... | 04/03/2007 |
| 7192178 | Extrusion auger with removable auger segments and removal tool There is provided an extrusion auger having auger segments that are removable from an auger shaft and that include a recess to facilitate removal of the auger segments. A pulling tool is also provided to engage the recess of the auger segment and to facilitate the r... | 03/20/2007 |
| 7192989 | Method and expansion device for preparing expanded thermoplastic microspheres The present invention relates to a method of preparing expanded thermoplastic microspheres, comprising charging thermally expandable microspheres into an expansion device comprising rotating feeding means enveloped by a hollow body, and one or more scrapers. The inv... | 03/20/2007 |
| 7172407 | Injection unit for injection molding machines with continuously operating plasticizing unit An injection unit for an injection molding machine includes a plasticizing unit in the form of an extruder, a plunger-type injection device, which can be connected to the injection molding machine by an injection nozzle. The plunger-type injection device defines an ... | 02/06/2007 |
| 7172333 | Injection molding screw An injection molding screw for metal injection molding includes a first end, a second end, a longitudinal body with a first stage and a second stage extending axially along a length of the screw between the ends, a pressure retention device, and optionally, a screw ... | 02/06/2007 |
| 7156550 | Apparatus for plasticating thermoplastic resin including polypropylene Apparatus according to this invention for plasticating a resin polymer, especially polypropylene, includes a barrel having an inlet, outlet, and inner surface. A screw, located within and closely spaced from the inner surface of the barrel, has a longitudinal axis e... | 01/02/2007 |
| 7101165 | Extrusion molding apparatus for ceramic molded product An extrusion molding apparatus comprises a shaping die for producing a ceramic molded product, and a screw extruder having built therein an extruding screw (40) for mixing while leading a ceramic material forward. The extruding screw (40) includes a pr... | 09/05/2006 |
| 7036974 | Mixing device for extruders A mixing device comprises a cylindrical body (14) to be terminally engaged with an extrusion screw (2) and carrying at least one primary mixing thread (15) and at least one secondary mixing thread (16) having a crest diameter (d3 | 05/02/2006 |
| 7025491 | Homogenizing and/or dispersing device comprising endless screws An apparatus for homogenizing and/or dispersing at least one viscous substance and at least one solid and/or at least one other substance of different viscosity includes in a space in a housing axis-parallel rotatable shafts disposed along a circle with equal centra... | 04/11/2006 |
| 7021816 | Plasticating screw A plasticating screw including a grating mixing section provided to enhance mixing of incompatible materials. The screw includes a mixing section including an inlet groove having a closed distal end, a discharge groove circumferentially spaced from the inlet groove,... | 04/04/2006 |
| 7014353 | Plasticating screw and apparatus A rotatable screw for moving material in a plasticating process along an axis through a conduit from an inlet to an outlet. The screw having a feed section, barrier melting section, reorientation section and metering section disposed sequentially downstream. The scr... | 03/21/2006 |
| 7014447 | Extruder for welding plastic components An extruder for welding plastic components, comprising a front part for plasticizing and ejecting additional plastic welding material, and a rear part, for feeding and breaking up a continuous filament made of the additional plastic material. The rear part comprises... | 03/21/2006 |
| 6997596 | Plastic extruder screw tip A plastic extruder screw tip having a conical inwardly and forwardly tapering melt converging surface; having first and second dashers fixedly attached to and extending laterally outwardly from the melt converging surface, the dashers being opposingly arranged and h... | 02/14/2006 |
| 6988821 | Plastics screw with barrier members A screw rotates in a containment barrel, and comprises a shaft having an upstream end and a downstream end At least one flight is secured to the surface of the shaft and extends helically in successive turns around the circumference of the shaft. An upstream barrier... | 01/24/2006 |
| 6962431 | Extruder mixer An extruder mixer and method for mixing plastic materials utilizes an elongated screw having an inlet channel connected to a first cross-axial pump that feeds, at an angle to the screw axis, a subsequent channel, wherein the subsequent channel becomes a further inle... | 11/08/2005 |
| 6958128 | Dynamic mixer screw tip The present invention includes a screw tip for an extruder screw for effecting mixing in an extruder. The screw tip has a substantially conical outside surface and at least one discontinuous fin. The at least one fin protrudes from the outside surface of the screw t... | 10/25/2005 |
| 6913379 | Closed kneader With conventional closed kneaders, the temperature of the kneaded material remains high at the end of primary kneading because insufficient cooling is made in the interior part of the kneaded material, making it necessary to either provide cooling time between the p... | 07/05/2005 |
| 6908573 | Polymeric resin blends and methods of manufacture thereof A screw for a multiple screw extruder comprises at least two conveying sections for transporting a composition comprising a polymeric resin from the feed end to the discharge end of the extruder; and at least two mixing sections comprising screw elements having two ... | 06/21/2005 |
| 6817851 | Method and apparatus for the manufacture of fiber-reinforced plastic compositions An apparatus for the manufacture of fiber-reinforced plastic compositions. The apparatus addresses the disadvantages of previous methods and apparatuses for the manufacture of fiber-reinforced plastic compositions using a plasticizing extruder. Some embodiments of t... | 11/16/2004 |
| 6799881 | Extruder arrangement An extruder arrangement for viscous material, especially rubber or natural or synthetic rubber mixtures, is provided. It has a screw extruder (12) with an extruder screw (16) that in the direction of conveying is followed downstream by a conveying devi... | 10/05/2004 |
| 6776596 | Apparatus for the manufacture of fiber-reinforced plastic compositions The invention is addressed to the problem of providing a method whereby a mixing of bulk material containing fibers (fiber material) and plastic granules for the plasticate extrusion of long fiber reinforced thermoplastics (LFT) will be possible during the melting p... | 08/17/2004 |
| 6767123 | Kneading device A kneading device kneads a main raw material of high viscosity and a secondary raw material of liquid or powder and continuously delivers a kneaded raw material obtained, and a ropesizer includes a sheet forming unit, and a delivering unit applies a second raw mater... | 07/27/2004 |
| 6712495 | Mixing apparatus An apparatus for mixing thermoplastic materials is provided. The apparatus includes a barrel and a screw rotatably mounted in the barrel. The screw has a screw shaft with a thread spirally extending around the screw shaft so as to form a plurality of flights, and th... | 03/30/2004 |
| 6709147 | Intermeshing element mixer A mixing section (10,50,60) for mixing material in an extruder (8) having a barrel (32), The mixing section (10,50,60) includes a screw (14) having a central shaft (16), and a floating annular sleeve (12) located betw... | 03/23/2004 |
| 6709146 | Thermokinetic mixer and method of using The present invention comprises a novel thermokinetic mixer. In one form of the invention, the mixing chamber shaft projections are removable at least in part and replaceable without cutting the projections from the shaft. In another form of the invention, only a ti... | 03/23/2004 |
| 6682213 | Twin-screw continuous kneading apparatus and kneading method using the same A twin-screw continuous kneading apparatus is provided which can stably supply an additive without reducing the production capability and greatly increase the throughput of a high-quality compound. The kneading apparatus includes a second supply unit conn... | 01/27/2004 |
| 6613128 | Twin screw extruder, method of making aromatic polycarbonate using a twin screw extruder, and method of removing volatiles from an aromatic polycarbonate melt An aromatic polycarbonate extruder which is a twin screw extruder for kneading components into a molten aromatic polycarbonate, the extruder having at least one module consisting of a kneading unit, a material seal unit, a back kneading unit and full-flig... | 09/02/2003 |
| 6609818 | Thermoplastic foam extrusion screw with circulation channels A foam extrusion assembly having a melt region wherein a plurality of material pellets are melted and mixed by a mixing assembly with a blowing agent introduced via an agent addition assembly. The foam extrusion assembly further includes a heat extraction... | 08/26/2003 |
| 6547431 | Mixing section for a feed screw and methods of making the same A mixing section for a feed screw includes a body portion defined along a longitudinal axis. The mixing section further includes a primary flight defining a helical channel, wherein the primary flight is helically wound in a first direction about the long... | 04/15/2003 |
| 6497508 | Plasticating process, apparatus and screw with mixing A cylindrical apparatus or module to be included in a screw of a plasticating device. The screw has a helical flight disposed within and cooperating with the inner-wall of a heated barrel to form an upstream where material is fed into and a downstream whe... | 12/24/2002 |
