Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8118582 | Method and apparatus for producing biobased carriers from byproducts of biomass processing An apparatus for producing biobased carriers for dispersal of biological and chemical molecules includes a premixer having a cavity for receiving a coproduct of a wet biomass process and a binder and being operable to premix the coproduct and binder to produce a sub... | 02/21/2012 |
| 7918662 | Integrated apparatus having kneading part and injecting part An apparatus having a kneading part for performing kneading of a material and an injecting part for performing injection of the material in an injection molding operation with the kneaded material. The kneading part and the injecting part are connected together. The... | 04/05/2011 |
| 7654812 | High capacity extrusion die assembly High-capacity extrusion die assemblies (20, 90, 130, 140, 180, 252) each having a tubular sections (44, 146, 162, 268) and an elongated, axially rotatable, helically flighted screw section (56, 56a, 152, 168, 276, 278) which cooper... | 02/02/2010 |
| 7611347 | Extrusion die assembly for high density products High-capacity extrusion die assemblies (20, 90, 130, 140, 180, 252) each having a tubular sections (44, 146, 162, 268) and an elongated, axially rotatable, helically flighted screw section (56, 56a, 152, 168, 276, 278) which cooper... | 11/03/2009 |
| 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 another by means of a function casing which is embodied for displacement s... | 10/21/2008 |
| 7338271 | Extrusion head having a rotating die A crosshead assembly for forming extruded shapes from molten polymer. The assembly includes body sections, a mandrel, a choke ring, and a tip holder for admitting, turning, and accelerating molten polymer toward a novel rotatable die sub-assembly. The die sub-assemb... | 03/04/2008 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7238015 | Control system for continuous rubber molding apparatus A control system for continuous rubber molding apparatus comprising; a feed portion for feeding a rubber material previously removed of foreign substances or particles in the previous step; an extruder for kneading the fed rubber material and feeding forward the kne... | 07/03/2007 |
| 7229584 | Method and apparatus for injection molding multi-component mixtures In a method and apparatus for injection molding a multi-component mixture, in particular liquid silicone rubber; a starting material, containing at least two components and, optionally, at least one additive, is conveyed from a storage and metering assembly through ... | 06/12/2007 |
| 7198744 | Preparation of co-extruded multi-layered rubber composite and use as component of a tire This invention relates to the preparation of a multi-layered rubber composite, said composite and a tire having a component prepared thereby. The multi-layered rubber composite is composed of at least two individual rubber compositions configured as at least three p... | 04/03/2007 |
| 7186457 | Cellulosic composite component A component such as a siding panel comprised of a PVC/wood flour composite. Another embodiment is a component such as a siding panel that is made from a PVC/CPE/wood flour composite. The cellulosic composite may be extruded through a die and then bent into the shape... | 03/06/2007 |
| 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 least one covering layer comprising a composition of high viscosity. ... | 02/13/2007 |
| 7128858 | Method for producing woody moldings and apparatus for producing woody moldings A method for producing woody moldings and an apparatus for producing woody moldings that can reduce the number of processing steps and shorten the processing time. Cellulose based fine powdery particles and thermoplastic resin are kneaded and dissolved into a mixed ... | 10/31/2006 |
| 7118362 | Pellet-type foams of non-crosslinked polypropylene resin having lower melting point and process and device for producing the same and molded foams therefrom The present invention relates to a pellet-type non-crosslinked polypropylene foam having a melting point of 125 to 140° C., and a process and device for producing said foam. Since the pellet-type foams of non-crosslinked polypropylene of the present invention has a... | 10/10/2006 |
| 7104775 | Injection unit having rotatable device for preventing reverse flow Disclosed is an injection unit having a rotatable device for preventing reverse flow. To connect first flow channels formed in a spacer and second flow channels formed in a screw head when the metering is performed, and prevent reverse flow of resin by cutting off t... | 09/12/2006 |
| 7101166 | Apparatus for extruding ceramic molding The extruding apparatus has the molding die to form the ceramic molding, the screw extruder containing the extrusion screw to knead and guide the ceramic material toward the molding die. The extrusion screw is comprised of the pressure screw part and the diffusion s... | 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 |
| 7087254 | Total chewing gum manufacture using high efficiency continuous mixing having optimized feed openings A method is provided for the manufacture of chewing gum on a continuous basis. The method uses a continuous high efficiency mixer which is configured for the total manufacture of a wide variety of chewing gum products and includes at least one ingredient feed openin... | 08/08/2006 |
| 7083319 | Large-volume reactor having a plurality of process spaces A large-volume reactor (10) for treating a free-flowing material, having a housing (12) which surrounds an interior space (14), a material feed (11) at one end of the housing (12) and a material discharge (13) at the other e... | 08/01/2006 |
| 7026377 | High performance fiber reinforced thermoplastic resin, method and apparatus for making the same A process for producing a fiber-reinforced molded article and the resulting article such as a cantilevered battery tray. In the process, thermoplastic material in its solid state having a melt flow index above 25 g/10 minutes is fed into a suitable processing machin... | 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 |
| 7017352 | Cooling of extruded and compression molded materials The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface tha... | 03/28/2006 |
| 7004743 | Installation for the treatment and further processing of thermoplastics and method for the operation thereof An installation for the treatment and further processing of thermoplastics comprises a screw-type compounding unit, downstream of which is disposed an intermittently drivable processing unit. Provision is made for a control unit which is connected with a drive of th... | 02/28/2006 |
| 6997694 | Extruder An extruder drive has a housing, at least two extrusion worms each having a drive shaft extending into the housing, and at least one drive motor including at least one cylindrical stator fixed in the housing and a cylindrical rotor cooperating with the stator so as ... | 02/14/2006 |
| 6971211 | Cellulosic/polymer composite material The present invention is a component such as a siding panel that may be comprised of various formulations of cellulosic/polymer composite materials. One embodiment of the present invention is a siding panel that is comprised of a cellulosic/PVC composite material. T... | 12/06/2005 |
| 6958185 | Multilayer synthetic wood component A multilayer synthetic wood component comprised of a layer of a first synthetic wood composition that is secured to a layer of a second synthetic wood composition. As a result, the present invention may provide a component that utilizes the beneficial characteristic... | 10/25/2005 |
| 6957953 | Reservoir reducing screw tip An extruder for extruding extrudate is provided and includes a generally cylindrical barrel portion having an end face. A screw conveyor is rotatably arranged coaxially within the barrel portion and has a downstream end. The screw conveyor has helical flights that d... | 10/25/2005 |
| 6945687 | Mixing apparatus having a cooled connector The present invention relates to a mixing apparatus at least composed of a screw-based machine S1 and a screw-based machine S2, where S1 has heating equipment, at least in the plasticizing and homogenizing zone, and where the outlet from S2 | 09/20/2005 |
| 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 |
| 6929841 | Plastic-based composite product and method and apparatus for manufacturing same The invention relates to a plastic-based composite product which consists at least partially of a plastic in which a material consisting substantially of particles is homogeneously embedded, which particles have tensile strength in at least one principal direction. ... | 08/16/2005 |
| 6808375 | Expanded porous thermoplastic polymer membranes and device for the production thereof Open celled membranes from thermoplastic polymers are prepared from foamed polymer melts by extrusion through a die. ... | 10/26/2004 |
| 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 |
| 6719448 | Method and apparatus for the simultaneous production of differently characterized extrudates Material processing apparatus (10) is provided for the simultaneous production of different characterized final products using a single, initially processed product stream. The apparatus (10) includes a barrel assembly (12) having an elongated, ... | 04/13/2004 |
| 6595765 | Device for homogenizing, mixing and/or granulating chemical substances The invention concerns a device for homogenizing, mixing and/or granulating chemicals which consist of at least one component, particularly additives, by means of an extruder consisting of several housing segments, at least one worm, a nozzle arrangement ... | 07/22/2003 |
| 6511217 | Method and system to compound silicone compositions 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 composit... | 01/28/2003 |
| 6502977 | Extruder plant with worm extruder and gearwheel extruder An extruder plant includes a worm extruder having a reduced length and including only a feed zone of the extruder plant and a gearwheel extruder connected downstream of the worm extruder and including a plasticizing and pressure build-up zone of the extru... | 01/07/2003 |