Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8128395 | Honeycomb segment-forming die and method for manufacturing honeycomb structure A honeycomb segment-forming die includes: an introducing portion provided on an introduction face side and having a plurality of back holes, and a forming portion provided on an formation face side and having slits communicating with the back holes. The forming port... | 03/06/2012 |
| 7997888 | Die for forming honeycomb structure and manufacturing method of die for forming honeycomb structure A die for forming a honeycomb structure is provided with back pores through which a forming material is introduced and slits through which the forming material is extruded into a lattice-like shape, and the die comprises a first plate-like member made of a super har... | 08/16/2011 |
| 7938641 | Extrusion die An extrusion die comprises a die body defining a die cavity (18). The cavity (18) is shaped such that the die body includes a male portion (24) and a female portion (26). A leading edge (18a) of a part of one side of the die... | 05/10/2011 |
| 7878792 | Support arrangement for an extrusion tool and extrusion tool for moulding an object A support arrangement retains several calibration dies of a calibrating device disposed one after the other in the extrusion direction on a calibrating table of an extrusion plant. The support arrangement includes a support plate and a mounting plate separate from i... | 02/01/2011 |
| 7713050 | Die for forming honeycomb structure A die for forming a honeycomb structure includes a die base having a first plate-like member and a second plate-like member, the first plate-like member is provided with groove portions on the side of a bonding surface between the first plate-like member and the sec... | 05/11/2010 |
| 7500847 | Die for forming honeycomb structure and method of manufacturing the same A die for forming a honeycomb structure may realize a sophisticated formability and superior resistance to wear. The die may be provided with a die base including two surfaces, one being provided with slits of honeycomb shape, and the other being provided with back ... | 03/10/2009 |
| 7396223 | Forming jig and method for producing formed body using same A forming jig comprises a rectification plate having two or more material supply holes, a drawing die installed below the rectification plate to specify the external configuration of the formed body produced from a material, and a floating die in which two or more w... | 07/08/2008 |
| 7384258 | Die for forming honeycomb structure, and method of manufacturing the same There is disclosed a die 1 for forming a honeycomb structure comprises: a plate-like die substrate 2 having at least two surfaces 8, 9, in which back holes 3 for introducing a green material are formed in one surface 8, and slits | 06/10/2008 |
| 7381042 | Nozzle head for an extruder A die head for an extruder including an outer shell, an inner cylindrical mandrel, an annular die gap at a discharge side of the die head, at least one intake opening for receiving a melted mass, at least one distribution element for distributing the melted mass to ... | 06/03/2008 |
| 7364015 | Acoustical panel comprising interlocking matrix of set gypsum and method for making same An acoustical panel comprising a continuous phase of an interlocking set gypsum matrix and a method of preparing an acoustical panel are disclosed. ... | 04/29/2008 |
| 7329116 | Double-webbed mandrel An mandrel for extrusion of hollow bodies, such as, polyvinyl chloride (PVC) hard, compact, and foamed pipes, includes an inner collar, an outer collar, and a middle collar, each of the collars being radially joined by webs to the particular adjoining collar. Each i... | 02/12/2008 |
| 7318720 | Die assembly and production process for profile extrusion The invention discloses an improved die assembly for the extrusion of thermoplastic resin cellulosic fiber composite profiles meant to minimize and substantially prevent the occurrence of melt fracture on the surface of the extruded composite profiles. Comprising th... | 01/15/2008 |
| 7314530 | Press and magnet manufacturing method A press machine 10 includes a die 12 with a through hole 12a that defines a cavity, a first press surface 14a and a second press surface 16a for pressing a magnetic powder 18 loaded in the cavity, and ma... | 01/01/2008 |
| 7311510 | Honeycomb forming die Disclosed is a die (10) for forming a honeycomb body having a structure provided with groovy slits (2) on a front face thereof, the slits being formed by cell blocks (3) and back holes (4) on a back surface thereof, each hole being commun... | 12/25/2007 |
| 7303782 | Extrusion die coating method Apparatus and a method for selectively vapor-coating an extrusion die to extrude honeycombs with desired distributions of web thicknesses, wherein at least one perforated impedance or preferential coating plate with a desired pattern of holes is positioned adjacent ... | 12/04/2007 |
| 7294301 | Die assembly and method for forming honeycomb filters A method for forming honeycomb structures, such as wall-flow honeycomb filters, which utilizes extrusion of multiple material supplies at once. Such methods may be used to form intermittent plugs or other structures in the cell channels during the extrusion process,... | 11/13/2007 |
| 7264457 | Flow distributor for die tooling of pipe mold equipment with remote extruder Equipment (1) used in the molding or plastic pipe includes die tooling (3) provided with a plastic flow distributor (25) at the upper end of the die tooling. The plastic flow distributor has adjustable flow to provide an even distribution of pla... | 09/04/2007 |
| 7201571 | Method for extrusion and extrusion plant, in particular for production of bent extruded products The invention relates to a method for extrusion, in particular for the production of bent extruded products, in which the extruded product (8) is formed in a die mounted before a support yoke (2) of an extrusion machine and then bent or curved by means... | 04/10/2007 |
| 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 |
| 7195471 | Blowing head for extruding films, comprising clamping elements containing ducts for cooling air Tubular film die head for extruding single-layer or multi-layer film which has at least the following features: a substantially annular die gap, fastening elements which fix at least two components with respect to one another which together border areas bearing plas... | 03/27/2007 |
| 7186110 | Apparatus of making wedged plates An apparatus for making wedged plate has an extruder to provide melted plastic material. A die head has a channel with an inlet and an outlet. The inlet of the die head is connected to an outlet of the extruder. The outlet of the die head has a thick side and a narr... | 03/06/2007 |
| 7175415 | Moulding system, in particular a calibration die The invention relates to a moulding system (3), in particular a calibration die (17), for an extrusion plant, with preferably parallel inlet and outlet faces (28, 29) spaced at a distance apart and with side faces (30, 31, 32, 33) extendi... | 02/13/2007 |
| 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 |
| 7163389 | Extrusion die for honeycomb extrusion molding and manufacturing method therefor An extrusion die for extrusion molding of a honeycomb structure has back holes for introducing a raw material to be molded and slits for extruding the raw material. The extrusion die comprises an inside section, an outer peripheral section, and an outermost peripher... | 01/16/2007 |
| 7140865 | Apparatus for making a corrugation-free foam A method and apparatus for extruding a corrugation-free polystyrene foam with 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 ... | 11/28/2006 |
| 7132124 | Die for molding honeycomb structure and manufacturing method thereof In a die for molding a honeycomb structure, in which a coating layer is formed on a die base so that slits with a particular width are provided, the slits are provided so as to have a width of 30 to 200 μm by forming the coating layer by a substrate layer with a th... | 11/07/2006 |
| 7131829 | Spiral die assembly A spiral die assembly can obtain a homogeneous pipe body, an inflation film with/without drawing and a functional film by dispersing molten resin homogeneously, and the spiral die assembly is capable of being applied to various molten resins and extruding conditions... | 11/07/2006 |
| 7128862 | Biaxially oriented multilayer polymer tube for medical devices A tubular extruded member particularly suitable for use in medical devices such as intravascular catheters and guide wires, wherein the extruded tubular member includes multiple layers having biaxial helical orientation in different directions. A counter-rotation ex... | 10/31/2006 |
| 7112050 | Extrusion die for making a double-skin honeycomb substrate A honeycomb substrate includes an inner body having an inner skin and an array of inner webs defining an array of inner cells within the inner skin. The honeycomb substrate further includes an outer body having an outer skin formed concentric with the inner skin and... | 09/26/2006 |
| 7104777 | Pipe mold with compensation for pipe shrinkage Pipe molding apparatus having a moving mold tunnel includes an upstream and at least one downstream mold block. Each mold block comprises mold block sections which close with one another to form the pipe and which open relative to one another to release the pipe. Th... | 09/12/2006 |
| 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 |
| 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 |
| 7097441 | Annular co-extrusion die An annular co-extrusion die for extruding multi-layer tubular plastic film has inner die members stacked one upon another and having radially outwardly extending surfaces forming radially outwardly extending helical passages between respective pairs of inner die mem... | 08/29/2006 |
| 7094047 | Die for extrusion molding of honeycomb A die for extrusion molding of a honeycomb which comprises a structure provided with a groovy slit (2) formed by cell blocks (3) on a front face thereof, and additionally provided with a puddle inlet, on a back face thereof, communicatively connected w... | 08/22/2006 |
| 7090479 | Apparatus and method for manufacturing resin molded product The manufacturing apparatus of a resin molded product has a feed block that sets a layer configuration of the resin molded product obtained by molding a plurality of molten resins. The feed block includes a feed block body having a through hole, and a plurality of r... | 08/15/2006 |
| 7077639 | Spiral-webbed mandrel An mandrel for extrusion of hollow bodies, such as, polyvinyl chloride (PVC) hard, compact, and foamed pipes, includes an inner collar and an outer collar, and webs radially joining the inner collar and outer collar. The webs can be arranged twisted and/or offset in... | 07/18/2006 |
| 7056112 | Extrusion die and method for using the same An improved extrusion die and a method for using the same that minimizes the deflection of the die exit by providing the walls of the extrusion die with areas of increasing thickness that increase from the die ends to a central location. The die wall thickness is va... | 06/06/2006 |
| 7056110 | Apparatus for making reinforcement ply material An apparatus for making reinforcement ply material wherein reinforcement elements are grouped in untwisted sets and adjacent reinforcement elements in the same set are spaced apart a distance less than the distance between adjacent sets. The apparatus includes an ex... | 06/06/2006 |
| 7052568 | Tire retreading method A retreading method wherein a base composition and a cap composition are applied to a carcass (10) as two ribbons (14) and (16) extruded from separate extruders (18) and (20). The ribbons (14) and (16) can be layered ... | 05/30/2006 |
| 7052260 | Polymer processing system including decompression chamber and method for using same Polymer processing systems are provided including an extrusion assembly, a specially configured decompression chamber assembly, and a die assembly. Such systems are effective to provide shaped polymer products having reduced extrusion markings. ... | 05/30/2006 |
