Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8105067 | Method and apparatus for casting concrete products A method and an apparatus for casting concrete products substantially with a horizontal slipforming process, the concrete mass in said method being fed by means of at least one feed element (2) through a limited cross section (13, 7, 8) for forming a c... | 01/31/2012 |
| 7785094 | High capacity extrusion die assembly High-capacity extrusion die assemblies (20, 90, 130, 140, 180, 252) each having a tubular section (44, 146, 162, 268) and an elongated, axially rotatable, helically flighted screw section (56, 56a, 152, 168, 276, 278) which coopera... | 08/31/2010 |
| 7476096 | Screw extruder A screw extruder comprises an extruder body (4) with a bore (4H), and a screw (5) rotatably disposed in the bore (4H). The screw (5) comprises a screw shaft (7) and two screw flights (8 and 9) disposed in the f... | 01/13/2009 |
| 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 |
| 7322738 | Conical twin-screw extruder and dehydrator In a conical twin-screw extruder in which two rotor shafts having flights on the outer peripheral surfaces thereof and being adjacent to each other in the lateral direction are accommodated in a barrel having a raw material supply port on one side and a raw material... | 01/29/2008 |
| 7309224 | Device 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 |
| 7306449 | Food shaping device for forming three-layered foods A food shaping device for forming a three-layered food comprises: at least two first guide units and a food output unit. The food output device comprises a main tube; a middle tube; an inner tube; an inner circular path; an inner material guiding nozzle; and an oute... | 12/11/2007 |
| 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 achieved by intensive mixing. Therefore a statical mixing device is enclo... | 12/04/2007 |
| 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 |
| 7291001 | Device for preparing plastics material A device for the preparation of plastics material, in particular thermoplastic plastics material, has a receiving container (1) for the material, the interior of the receiving container (1) having tools (21) provided therein which are arranged o... | 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 |
| 7270471 | Extruder In an extruder for continuous working and/or processing of flowable substances having at least two parallel, corotating shafts equipped with intermeshing screw elements whose face is limited by circular arcs corresponding to the outside screw diameter, the screw cor... | 09/18/2007 |
| 7264460 | Installation for preparing materials A material processing plant comprises a first screw-type extruding machine (1) and a second screw-type extruding machine (2) which is disposed downstream thereof. Between the two screw-type extruding machines (1, 2), provision is made for a deli... | 09/04/2007 |
| 7244060 | Kneading apparatus A kneading apparatus includes a barrel having a chamber, which is a tubular hollow, a biaxial screw set for extruding a material to be kneaded downstream by rotation of the biaxial screw set inside the chamber, and kneading blade sections, mounted in the screw set, ... | 07/17/2007 |
| 7188992 | Kneading element and related articles A modified kneading element for a screw extruder, peripherally congruent, aligned, and contiguous with a cross-sectional profile of a modified conveying element, includes a central portion defining a root diameter having a shaft receiving bore defined therein; and a... | 03/13/2007 |
| 7182588 | Device for the continuous production of a strip of dough The invention relates to a device for the continuous production of a strip (6) of dough from a mass (5) of dough, the width of said strip being a multiple of its thickness. The inventive device comprises at least one pair of opposite, interspaced, long... | 02/27/2007 |
| 7150611 | Equipment with mutually interacting spiral teeth There is designed an equipment with mutually interacting spiral teeth, comprising at least two spiral rotors seating in a stator, where surfaces of the rotor shafts, a rotation wrapper of each of the rotors, each one being furnished with at least one spiral tooth, a... | 12/19/2006 |
| 7097442 | Extruder 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 |
| 7090483 | Direct-driven extruder and process for operating the same An extruder which converts preferably granular plastic material into the melted state and which includes an extruder screw rotating within a cylinder and connected to a drive unit having a motor and at least one rotor so that the drive unit provides torque for rotar... | 08/15/2006 |
| 7083320 | Kneading apparatus and method, including selectable supply ports, for kneading rubber or rubber compositions A continuous kneading apparatus and method are provided wherein discharge ports are provided at a plurality of positions of the barrel to discharge a kneaded product, and one of the plurality of the discharge ports is selected according to a desired kneading conditi... | 08/01/2006 |
| 7080935 | Multi-screw extruder The invention relates to a multi-shaft extruder for the continuous treatment and/or processing of bulk material, especially a powdery, granular or flocculent product, comprising a plurality of shafts (3) which are arranged in a crown-like manner in a cavity (... | 07/25/2006 |
| 7040798 | Ring extruder feed The invention relates to a multi-screw extruder for the continuous treatment and/or processing of a bulk material, especially a product in powder, granular or flake form, comprising several shafts (3) which are arranged in a ring shape in a cavity (1) ... | 05/09/2006 |
| 7029262 | Method and apparatus for making pellets of wood meal compound A method and apparatus for making pellets of wood meal compound according to the present invention is constructed in such a manner that synthetic resin material and wood meal material are supplied into a hopper (3) in a most upstream position, and kneaded in ... | 04/18/2006 |
| 7029263 | Injection molding device with intermediate storage space An injection molding device includes a continuously operating extruder and a discontinuously operating injection unit receiving plastic material from the extruder. The extruder has an extruder barrel which includes a plasticizing zone and a discharge zone, whereby t... | 04/18/2006 |
| 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 |
| 7004739 | Apparatus for injection molding multilayered articles An apparatus for injection molding two compatible polymeric materials, in which two or more plasticizing zones on a screw are used to simultaneously or sequentially plasticize the two materials into a common accumulation space through separate pathways. The charge c... | 02/28/2006 |
| 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 |
| 6941860 | Method of briquetting metal chips and briquetting press A method and a briquetting press for briquetting metal chips, wherein stable briquettes/pressed component are produced. The actual length (Lact) of the pressed component is obtained by applying pressure (Pmax/Preq) using at least one... | 09/13/2005 |
| 6942376 | Extruder mixing An extruder for producing a thermoplastic material having a first and second portion, namely, an axially extending barrel; first and second screw conveyers co-axially disposed within said barrel, said second screw conveyer co-axially disposed within said first screw... | 09/13/2005 |
| 6911165 | Method for fabricating concrete slabs using a horizontal slip casting process A method is provided for fabricating a concrete slab in a substantially horizontal slip casting process method, concrete mix is fed into a mold through a delimited cross section moving progressively in the casting process so as to form a concrete product of a desire... | 06/28/2005 |
| 6910796 | Process and equipment for producing concrete products having blended colors A process and equipment for producing multi-color concrete products, including architectural concrete blocks, concrete bricks, modular concrete products that are suitable for use in landscaping applications, such as retaining wall blocks, concrete pavers, and concre... | 06/28/2005 |
| 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 |
| 6805544 | Extruder An extruder includes a material feeding device feeding into a radial pump unit. The radial pump unit includes conical screws which are adjacently positioned and rotate in the same direction. The radial pump unit transfers an annular flow of the material into the ext... | 10/19/2004 |
| 6790025 | Extrusion molding apparatus An extrusion molding apparatus capable of improving the extrusion rate of the ceramic material without a major reconstruction of a drive system is disclosed. The extrusion molding apparatus comprises screw extruders (2, 3) including housings (29, 39) h... | 09/14/2004 |
| 6790023 | Screw extruder and method of controlling the same An extruder includes a barrel having a die attached to one end and at least one material inlet with a feeder for providing material to the material inlet. At least one screw is rotatively mounted in the barrel, and a motor is provided for driving the screw. A plural... | 09/14/2004 |
| 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 |
| 6722870 | Traveling extrusion machine A spiral conveyor for a concrete extrusion machine has a first spiral conveyor section with a first external diameter. There is a second spiral conveyor section having a second external diameter which is greater than the first diameter. The second section is spaced ... | 04/20/2004 |
| 6698338 | Domestic machine for making, cutting and shaping pasta The machine comprises a pair of risers and a head comprising a plurality of operating roller units with rollers supported on the top and between the risers. According to the invention, the machine comprises a cover pivotally mounted by a pin with respect ... | 03/02/2004 |
| 6676864 | Resin and fiber compounding process for molding operations Molding material consisting of resin coated reinforcing fibers in a molten mass of resin and fibers is prepared at a molding site for controlled supply to a molding machine. A conveying device, such as a pair of pinch rollers, serves to pull fibers from s... | 01/13/2004 |
| 6648057 | Apparatus for manufacturing semi-finished products and molded articles of a metallic material An apparatus for manufacturing semi-finished products and molded articles of metallic materials includes an extruder for producing a flow of the metals, with appliances being connected thereafter for shaping the semi-finished products and the molded artic... | 11/18/2003 |
