Patents Issued in February 20, 2001
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Patent number: 6190572Abstract: An aqueous polishing composition for leather containing in intermixture of a water phase and an oil phase is disclosed. The water phase containing a mixture of an antiseptic, an ethylamine, and water. The oil phase containing a mixture of carnauba, bees wax, an oleic acid, and an antioxidant. The resultant oil phase and water phase forms an emulsion by mixing them together and then cooling. More specific instructions of the preparation of the aqueous polishing composition for leather and leather products are disclosed in the specifications.Type: GrantFiled: September 16, 1999Date of Patent: February 20, 2001Inventor: Shih Yao Chen
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Patent number: 6190573Abstract: This invention is directed to an extrusion-molded magnet comprising a samarium-iron-nitrogen material, which is novel and capable of exhibiting excellent magnetic properties, i.e., samarium-iron-nitrogen system magnetic particles excellent in magnetic properties. A permanent magnet material comprising a samarium-iron-nitrogen system magnetized anisotropy particles and having increased inter-iron atom distance and elevated magnetic saturation. The magnet material is prepared by a method of causing nitrogen intrusion into the iron crystal lattice of a samarium-iron alloy by holding the alloy in a nitrogen gas at about 500 degrees C. The prepared permanent magnet material is added to a thermoplastic polyolefin system synthetic resin, and the admixture is thermally fused and kneaded. The paste thus obtained is charged into an extrusion molder and extruded through a magnetic field device, which is at an end of the extrusion molder and has an internal die, thus obtaining a molded magnet.Type: GrantFiled: February 26, 1999Date of Patent: February 20, 2001Assignee: Magx Co., Ltd.Inventor: Noboru Ito
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Patent number: 6190574Abstract: A lubricating oil composition including a phosphorus compound having two or more hydroxyl groups and a P—N bond in a molecule selected from the group consisting of compounds represented by the general formula (3), (4) or (5): wherein R1 to R5 and R7 to R9, which may be identical or different, each represents an aryl group having 6 to 18 carbon atoms; a linear alkyl group having 1 to 18 carbon atoms; a branched alkyl group having 3 to 18 carbon atoms; a linear alkenyl group having 2 to 18 carbon atoms; or a branched alkenyl group having 3 to 18 carbon atoms; and R6 represents hydrogen atom; a linear alkyl group having 1 to 18 carbon atoms; a branched alkyl group having 3 to 18 carbon atoms; a linear alkenyl group having 2 to 18 carbon atoms; or a branched alkenyl group having 3 to 18 carbon atoms; and a working fluid composition for refrigerating machine including the lubricating oil composition described above, and a hydrofluorocarbon.Type: GrantFiled: June 29, 1998Date of Patent: February 20, 2001Assignee: Kao CorporationInventors: Shoji Nakagawa, Yuichiro Kobayashi, Hiroyasu Togashi, Toshiya Hagihara, Koji Taira
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Patent number: 6190575Abstract: A polymer electrolyte which contains an inorganic pigment, having a sulfonated polystyrene resin as a principal ingredient, and is soluble to water.Type: GrantFiled: September 10, 1999Date of Patent: February 20, 2001Assignee: Sony CorporationInventors: Yasuhito Inagaki, Tsutomu Noguchi, Haruo Watanabe, Miyuki Kuromiya
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Patent number: 6190576Abstract: The invention is to provide liquid crystalline compounds which have a low viscosity, high negative dielectric anisotropy, high resistivity, and high voltage holding ratio, and are stable against heat and ultraviolet light; to provide liquid crystal compositions comprising the liquid crystalline compound; and to provide liquid crystal display devices using the liquid crystal composition therein; the liquid crystalline compound is expressed by the general formula (1) wherein R1 and Y1 represent an alkyl group having 1 to 20 carbon atoms; X1, X2, and X3 independently represent single bond, 1,2-ethylene group, vinylene group, —COO—, —CF2O—, or —OCF2—; ring A1, ring A2, ring A3, and ring A4 independently represent trans-1,4-cyclohexylene, or 1,4-phenylene hydrogen atom on the ring may be replaced by fluorine atom or chlorine atom provided that at least one of ring A2, ring A3, and ring A4 represents 2,3-difluoro-1,4-phenylene; m and n are 0 or 1, and each elemType: GrantFiled: September 30, 1998Date of Patent: February 20, 2001Assignee: Chisso CorporationInventors: Tugumiti Andou, Shuichi Matsui, Kazutoshi Miyazawa, Hiroyuki Takeuchi, Yasuyuki Koizumi, Yasuko Sekiguchi, Etsuo Nakagawa, Fusayuki Takeshita
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Patent number: 6190577Abstract: A phosphor containing O, Al, In, at least one element M selected from a group consisting of Sr, Ca and Ba, and Eu, as an activator, where the M, the Al, the In and the Eu are present in an atomic ratio M:Al:In:Eu of m:2n(1−y):2n(y):a, 0.3<m/n≦2, 0≦y≦0.2, and 1×10−5≦a≦1×10−1, exhibits excellent luminance, afterglow and durability. Also a phosphor containing O, Al, In, B, at least one element M selected from a group consisting of Sr, Ca and Ba, and Eu2+ as an activator, where the M, the Al, the In, the B and the Eu are present in an atomic ratio M:Al:In:B:Eu of m:2n(1−y−z):2n(y−z):2n(z):a, 0.3≦m/n≦2, 0<y≦0.2, 0<z≦0.05, and 1×10−5≦a≦1×10−1 exhibits excellent luminance, afterglow and durability.Type: GrantFiled: July 20, 1999Date of Patent: February 20, 2001Assignee: USR Optonix Inc.Inventors: Takashi Hase, Sawsan Aziz
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Patent number: 6190578Abstract: An anisotropic conductive composition, which comprises one part by weight of copper alloy powders having an oxygen content of 10 to 10,000 ppm and 0.5 to 250 parts by weight of an organic binder, wherein a copper compound exists on the surfaces of particles of the copper alloy powders.Type: GrantFiled: August 4, 1998Date of Patent: February 20, 2001Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Akinori Yokoyama, Toru Mori
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Patent number: 6190579Abstract: Electron emission materials consisting of carbides, borides, and oxides, and related mixtures and compounds, of Group IVB metals Hf, Zr, and Ti, Group IIA metals Be, Mg, Ca, Sr, and Ba, and Group IIIB metals Sc, Y, and lanthanides La through Lu are used in electrodes. The electron emission materials include ternary Group IVB-IIIB, IVB-IIA, and IIIB-IIA oxides and quaternary Group IVB-IIIB-IIA oxides. These electron emission materials are typically contained in a refractory metal matrix formed of tungsten, molybdenum, tantalum, rhenium, and their alloys, but may also be used by themselves. These materials and electrodes have high melting points, low vapor pressures, low work functions, high electrical and thermal conductivity, and high thermionic electron emission and field emission properties.Type: GrantFiled: November 8, 1999Date of Patent: February 20, 2001Assignee: Integrated Thermal Sciences, Inc.Inventor: Garth W. Billings
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Patent number: 6190580Abstract: Photochromic diaryl-2H-naphthopyran structures, which dye photochromically well at room temperature, lighten up quickly when incorporated into ophthalmic lenses, possess longevity, and due to their special structure, have a reduced tendency of the molecules to migrate in plastics.Type: GrantFiled: November 23, 1999Date of Patent: February 20, 2001Assignee: Optische Werke G. RodenstockInventors: Manfred Melzig, Herbert Zinner
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Patent number: 6190581Abstract: A dehydrated mixture of hydrated sodium antimonate and ionomer polymer flame retard a polymer or resin composition such as film, fiber, electrical connection and molded part. From 10 to 90 parts sodium antimonate containing 3% moisture mixed with 10 to 90 parts ionomer polymer or polyethylene or ethylene vinyl acetate are added to a single screw vented extruder to produce pellet concentrate with a 0.1% moisture content for flame proofing PET. A composition may be prepared in a single or twin screw extruder or in a high shear blender in the presence of glass fiber by adding a dehydrated mixture of an alkyl tertabromophtalate and sodium antimonate and brominated polystyrene to polyethylene terephthalate or polybutylene terephthalate. A preferred temperature range for dehydration of hydrated sodium antimonate in the presence of a polymer is between 150° C. and 250° C.Type: GrantFiled: May 12, 1994Date of Patent: February 20, 2001Assignee: Laurel Industries, Inc.Inventors: Robert J. Duffin, Jr., Irving Touval
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Patent number: 6190582Abstract: Improved method of sintering for the manufacture of nuclear fuel comprising a fissionable ceramic material including a silica containing additive. The method includes controlling the sintering atmosphere to impede loss through vaporization of the silica.Type: GrantFiled: September 25, 1998Date of Patent: February 20, 2001Assignee: General Electric CompanyInventor: Mickey O. Marlowe
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Patent number: 6190583Abstract: The present invention relates to an apparatus and method for making a slotted rod for an optical cable, which improves manufacturing efficiency, while alleviating the load applied to the apparatus. In the present invention, a rotatable die for forming a slot in a resin surface covering a tension member is rotated about the moving direction of the tension member such that the rotatable die alternately reverses its rotational direction for every predetermined reverse pitch of the tension member, and the tension member is alternately twisted in rotational directions opposite to the rotational directions of the rotatable die in synchronization with the rotation of the rotatable die.Type: GrantFiled: September 22, 1998Date of Patent: February 20, 2001Assignee: Sumitomo Electric Industries Ltd.Inventors: Shigeru Suemori, Takehiko Okada, Shigeki Yasui
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Patent number: 6190584Abstract: A method of molding, from porous material, a low-density product having an impermeable surface. A mold is provided which has a cavity, the outline of which defines the outline of the product. The starting material is a flat sheet of plastic foam. The first step of the process, in some cases, is a pre-heating procedure, which softens the material. Then, from this sheet there is stamped a blank having substantially the outline of the desired product, which is then inserted into the mold cavity. The mold is then heated with the blank therein to form the blank permanently into the desired product, after which the mold is quenched in cold water with the product still inside. The product is subsequently removed from the mold and frozen. The result of this molding method is a low-density product having an impermeable surface integral with the foam interior which is suitable for receiving various types of brightly colored finished.Type: GrantFiled: July 6, 1999Date of Patent: February 20, 2001Assignee: C.J. Associates, Ltd.Inventors: James S. W. Lee, Chiu-Keung Kwan
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Patent number: 6190585Abstract: Various steps in the operation of an insulated runner injection molding system are automated by computer generated responses to various sensing steps or other steps to thereby reduce the performance requirements of the system operator. In automatic response to a manual operation incident to closure of a machine gate subsequent to removal of a sprue from channel-encasing mold parts, a computer causes the molding system to be adjusted to enable injection of molten plastic into an insulated runner channel to form the insulated runner and through the insulated runner into mold-cavities. In automatic response to sensing such readjustment of the molding system, the computer causes a predetermined quantity of molten plastic to be metered for injection to form the insulated runner. In automatic response to sensing such metering the computer causes the metered quantity to be injected into the channel.Type: GrantFiled: January 28, 1999Date of Patent: February 20, 2001Assignee: Universal VenturesInventors: Paul Philip Brown, Jens Ole Sorensen
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Patent number: 6190586Abstract: The invention comprises a method for creating a billet for molding a part. A plasticator is loaded with long reinforcing fibers and materials, such as a polyester, a carbocyclic, thermoplastic polymers or mixtures thereof, and heated to a predetermined temperature. The feed is then blended and plasticated to form a molten suspension. Pressure and shear within the plasticator is controlled to provide a process that provides a moldable billet with the length of the reinforcing fibers generally preserved through the plasticating and molding operation.Type: GrantFiled: September 20, 1999Date of Patent: February 20, 2001Assignee: Composite Technologies Co., LLCInventors: Fredric Louis Abrams, Robert F. Freund
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Patent number: 6190587Abstract: A method for forming products such as simulated leather including one or more layers from thermoplastic, thermosetting or elastomer materials all formed by slush-moulding, comprising: forming in a slush-moulding mould a first layer of compacted material representing the exposed layer of the finished product, on said first layer forming a second layer of expandable material by further slush-moulding, completing with heat the consolidation of said layers by gelling and expansion of said second layer, the free face of which has an irregular shape. To the layered material thus formed is coupled a support of rigid material without discontinuity points or regions between them by filling every possible interspace.Type: GrantFiled: December 18, 1998Date of Patent: February 20, 2001Assignee: Industrie Ilpea S.p.A.Inventors: Paolo Cittadini, Giuseppe Luisetti
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Patent number: 6190588Abstract: In a continuous twin-belt prepress for the production of particle board panels with pressure rollers suspended in pairs, the upper pressure rollers are suspended resiliently so that they can be pressed upwardly counter to the spring force by a catch member of a metal support screen bearing the chipboard cake when that member passes through. This prevents damage to the press and especially its forming belts as a result of increased pressure during pressing.Type: GrantFiled: May 13, 1999Date of Patent: February 20, 2001Assignee: Schlingmann GmbH & Co.Inventor: Heinz Schmidt
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Patent number: 6190589Abstract: A molded magnetic article and fabrication method are provided. Particles of ferromagnetic material embedded in a polymer binder are molded under heat and pressure into a geometric shape. Each particle is an oblate spheroid having a radius-to-thickness aspect ratio approximately in the range of 15-30. Each oblate spheroid has flattened poles that are substantially in perpendicular alignment to a direction of the molding pressure throughout the geometric shape.Type: GrantFiled: February 11, 2000Date of Patent: February 20, 2001Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Robert G. Bryant, Min Namkung, Russell A. Wincheski, Robert L. Fox
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Patent number: 6190590Abstract: A method and apparatus for forming a flanged polytetrafluoroethylene cuffed section from a tubular polytetrafluoroethylene graft. The flanged polytetrafluoroethylene graft is well suited for use as a distal bypass graft, for arteriovenous grafting, or as a hemodialysis access graft. The graft includes an integral terminal polytetrafluoroethylene flanged skirt or cuff section which facilitates an end-to-side anastomosis directly between an artery and the polytetrafluoroethylene flanged graft without need for an intervening venous collar or venous patch.Type: GrantFiled: August 27, 1998Date of Patent: February 20, 2001Assignee: Impra, Inc.Inventors: Scott Randall, Roy H. Tang, Albert L. Lamay
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Patent number: 6190591Abstract: Controlled release, discrete, solid particles which contain an encapsulated and/or embedded component such as a heat sensitive destruction or readily oxidizable pharnaceutically, biologically, or nutritionally active component are continuously produced without substantial destruction of the matrix or encapsulant. A release-rate controlling component is incorporated into the matrix to control the rate of release the encapsulant from the particles. the additional component may be a hydrophobic component or a high water binding capacity component for extending the release time. The plasticizable matrix material, such as starch, is admixed with at least one plasticizer, such as water, and at least one release-rate controlling component under low shear mixing conditions to plasticize the plasticizable material without substantially destroying the at least one plasticizable material and to obtain a substantially homogeneous plasticized mass.Type: GrantFiled: May 17, 1999Date of Patent: February 20, 2001Assignee: General Mills, Inc.Inventor: Bernhard H. van Lengerich
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Patent number: 6190592Abstract: A photo film cassette includes a spool core, on which the photo film is wound in a form of roll. A cassette shell contains the spool core in rotatable fashion. First and second flanges are respectively secured to ends of the spool core, for regulating positions of sides of the photo film roll. A first ring-like lip is formed integrally with a periphery of the first flange, is projected toward the roll, is contacted on one edge of an outermost turn of the roll, and prevent the roll from being loosened. The first and second flanges are formed from resin in accordance with injection molding. The resin has temperature of thermal deformation being 80° C. or higher under 18.6 kg/cm2, modulus in elasticity in flexure being 13,000-30,000 kg/cm2, surface hardness being 80 or more in Rockwell R-scale, and high fluidity in molds for the injection molding. The first and second flanges have an outer diameter of 15 mm or more, thickness of 0.Type: GrantFiled: April 30, 1998Date of Patent: February 20, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Masahiro Enomoto, Mototada Yasui, Masuhiko Hirose, Seiichi Watanabe, Keiji Shigesada, Takashi Ohgiyama, Naoyoshi Chino
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Patent number: 6190593Abstract: A method for manufacturing a false nail chip (1), the method comprising: building an impression material (21) on a tray (20) having a size for holding a fingertip shape; pressing a fingertip (4) including a nail (6) portion against the impression material to take a precise impression of the nail portion; injecting ground plaster mud (38) into the precise impression of the nail portion taken and forming a fingertip plaster model (33) for a false nail chip including a nail portion comprising a nail plate (9), a nailtip and a nail plate margin (10) by hardening; shaving the precise impression at the extreme end from the nailtip of the fingertip plaster model to form an enlarged cavity (28); injecting the plaster mud into the enlarged cavity to integrally add a plaster coarse pattern (30) of a nailtip extending portion to the fingertip plaster model to form a false plaster coarse pattern; removing the false nail plaster coarse pattern from the precise impression; adjusting the nail chip shape of the nail chip sidType: GrantFiled: February 10, 2000Date of Patent: February 20, 2001Inventor: Satoru Baba
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Patent number: 6190594Abstract: Tool rolls and methods of using the tool rolls to manufacture articles with one or more structured surfaces are disclosed. The tool rolls include an outer surface that, when used in connection with materials of the proper viscosity or formability, can form a structured surface on an article. Because the tools are manufactured in roll-form, they can be advantageously used in continuous manufacturing processes. Alternatively, discrete articles may be processed using the tool rolls. The tool rolls are constructed of a cylindrical base roll and are wrapped with one or more continuous wires in a helical pattern. The wires are used, in essence, to form a structured surface on the tool roll that is the negative of the structured surface to be formed on the articles processed using the tool roll. One of the wires wound around the base roll may include a plurality of voids formed therein that, when wound in helical coils about the base roll, form a plurality of mold cavities on the outer surface of the tool roll.Type: GrantFiled: March 1, 1999Date of Patent: February 20, 2001Assignee: 3M Innovative Properties CompanyInventors: Michael R. Gorman, Roger D. Pavlis
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Patent number: 6190595Abstract: Extrusion arrangement for manufacturing bent workpieces, having an extrusion die which is guided in an extrusion chamber and compresses material situated in the extrusion chamber and presses it through a bottom die arranged on a head-side end of the extrusion chamber. At least two further bottom die elements are arranged behind the bottom die in a parallel adjoining manner and are displaceably and rotatably disposed such that their successive passage openings form an extrusion duct of a variable curvature and twisting. For producing hollow profiles, an arbor is provided in the interior of the extrusion chamber, whose extension extending through the outlet opening of the bottom die and into the passage openings of the bottom die elements consists of a plurality of segments which are movably connected with one another.Type: GrantFiled: April 20, 1998Date of Patent: February 20, 2001Assignee: DaimlerChrysler AGInventors: Volker Thoms, Andreas Poellmann, Klaus Mueller
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Patent number: 6190596Abstract: A process for producing cellulosic shaped objects includes extruding and coagulating a solution of chemical wood pulp in a tertiary amine oxide, and possibly a liquid that does not dissolve wood pulp and is miscible with the tertiary amine oxide, the solution capable of being shaped into objects, the process of producing the shapeable solution employing a first wood pulp with a higher degree of polymerization and a second wood pulp with a lower degree of polymerization, and whereby initially a solution of the first wood pulp with a higher degree of polymerization in the tertiary amine oxide and possibly non-dissolving liquid, and a composition containing the second wood pulp with a lower degree of polymerization, tertiary amine oxide, and possibly non-dissolving liquid, are prepared separately, and the solution and composition are subsequently at least mixed to obtain the shapeable solution.Type: GrantFiled: April 9, 1999Date of Patent: February 20, 2001Assignee: Akzo Nobel N.V.Inventors: Derek Budgell, Ulrich Wachsmann, Wilhelm Kramer
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Patent number: 6190597Abstract: A golf ball has a core and a cover, and the cover includes at least one thin spherical layer with a thickness of not more than 1.5 mm. The thin layer is molded by injecting an injection molding material at a selected fill speed which is correlated to the melt flow rate of the molding material. The invention facilitates the mass production of golf balls having thin spherical cover layers of uniform thickness which offer potential for further improvements in ball performance.Type: GrantFiled: November 10, 1998Date of Patent: February 20, 2001Assignee: Bridgestone Sports Co., Ltd.Inventors: Michio Inoue, Keisuke Ihara
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Patent number: 6190598Abstract: A process of making a composite vessel with superior mechanical and aesthetic characteristics includes the steps of: A) preforming a composite thermoplastic shell (e.g., by winding a commingled roving of fiberglass and a thermoplastic material onto a thermoplastic liner) having an opening for access to the interior; B) placing the shell (which may optionally be preheated) into a mold (which itself may optionally be preheated); C) introducing an inflatable bag containing a heater into the shell through the opening; D) heating the inflatable bag to a temperature which is sufficient to render the shell fluid while pressurizing the interior of the inflatable bag; E) continuing step D) until the shell forms against the interior walls of the mold; F) allowing the formed composite vessel to cool; G) removing the inflatable bag; and H) removing the formed composite vessel from the mold.Type: GrantFiled: September 11, 1998Date of Patent: February 20, 2001Assignee: Essef CorporationInventors: James C. Murphy, Gerald S. Boyce, Erik Coeckelbergs
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Patent number: 6190599Abstract: In a method of injection molding a tie that includes an abutment wall surface having at least one tooth inside a locking head facing a pawl, a movable core that defines at least a portion of a surface of the abutment wall that is on the opposite side of the abutment wall from the portion of the abutment surface that includes the at least one abutment surface tooth is moved to thereby enable the abutment wall to flex in a direction away from the pawl into a space vacated by movement of the core so that the tie can be removed from the mold without significantly damaging the at least one abutment surface tooth.Type: GrantFiled: January 8, 1996Date of Patent: February 20, 2001Assignee: GB Electrical, Inc.Inventors: Soren Christian Sorensen, Jens Ole Sorensen
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Patent number: 6190600Abstract: The present invention relates to an apparatus that forms a polymeric structure. The apparatus has a mold plate, a circular trench, a male and female interconnect, a vertical gap filler, and a cylinder. The mold plate has a predetermined geometric design. The circular trench is in the mold plate and the difference between the outer diameter and the inner diameter of the circular trench is a distance D. The male interconnect and the female interconnect are interspaced between each other. Each interconnect rotates within the circular trench and has a base and an interconnection portion. Each base has a width D and slidably mates to the mold plate. Each interconnect portion has a minimum width W which is less than D. The male interconnect portion protrudes downwards relatively from its base to a distance P, likewise the female interconnect portion protrudes upwards relatively from its base to a distance P. The vertical gap filler aligns with the circular trench and has a foundation and an extension.Type: GrantFiled: March 12, 1999Date of Patent: February 20, 2001Assignee: Confer Plastics, Inc.Inventor: David J. Lipniarski
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Patent number: 6190601Abstract: A method for controlling a screw injecting apparatus having a heating cylinder and a screw slidably and rotatably received in the heating cylinder and designed to carry out a plasticizing-metering phase in which a predetermined amount of a molten material is accumulated forwardly of the screw by plasticizing and kneading a raw molding material via the screw and the heating cylinder, a waiting phase in which the screw is held inactive for a period between completion of the metering and subsequent injection of the molten material, and an injecting phase in which the molten material is injected. The method comprises the step of causing the apparatus to vibrate the molten material at a predetermined low frequency axially of the screw during the plasticizing-metering phase. By vibrating the molten material at a low frequency during the relatively long plasticizing-metering phase, the viscosity of the molten material can be reduced.Type: GrantFiled: December 3, 1998Date of Patent: February 20, 2001Assignee: Nissei Plastic Industrial Co.Inventor: Nobuyuki Nakamura
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Patent number: 6190602Abstract: A method of making a perforated laminate wherein a pliable perforation device having plurality of holes and plurality of perforation pins in the holes is assembled on a laminate; the pins are driven through the uncured laminate to perforate the laminate; the laminate is then staged or cured with pins in place; and the pins are then removed from the cured laminate and pushed back into the perforation device for reuse thereof.Type: GrantFiled: February 3, 1999Date of Patent: February 20, 2001Assignee: Aztex, Inc.Inventors: Eric Blaney, Thomas M. Fusco, Glenn A. Freitas, David Rich
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Patent number: 6190603Abstract: A novel process for producing mouldings, especially contact lenses, is described, comprising the following steps: a) introducing into a mould a prepolymer containing photo crosslinkable groups that is liquid at room temperature or is readily meltable and is substantially free of solvents; b) initiating the photo cross-linking for a period of <20 minutes; c) opening the mould, so that the moulding can be removed for the mould. In accordance with the process according to the invention, it is possible especially to produce contact lenses having valuable properties.Type: GrantFiled: January 22, 1999Date of Patent: February 20, 2001Assignee: Novartis AGInventors: Bettina Steinmann, Friedrich Stockinger
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Patent number: 6190604Abstract: The present invention relates to a method of preparing a preform with a high volume fraction of SiC particles. A slurry containing SiC particles and binders is ball-milled and pressed in an apparatus to give a primary preform. This primary preform is dried at room temperature and then, at a high temperature. The dried primary preform is subjected to calcination to prepare the preform. In the apparatus, which comprises a bottom die; a top mold with a cavity, placed on the bottom die, an upper punch for pressing a material for the preform in the cavity; and two water-absorbers, one being inserted between the bottom die and the top mold, the other being placed on the top mold, the slurry is introduced in the cavity and pressed by the punch while the water is absorbed in the absorbers or drained through a gap between the bottom die and the top mold, thereby improving the volume fraction of SiC particles.Type: GrantFiled: April 26, 1999Date of Patent: February 20, 2001Assignee: Korea Advanced Institute of Science and TechnologyInventors: Soon Hyung Hong, Hyo Soo Lee, Kyung Yoon Jeon
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Patent number: 6190605Abstract: A method for high density long fill compaction of metallic powders uses a precisely temperature controlled mold and a dry sprayed lubricant which has the characteristic of softening on contact with the mold and smearing on the mold wall during compaction, yet on ejection not causing powder adherence.Type: GrantFiled: December 21, 1999Date of Patent: February 20, 2001Assignee: Zenith Sintered Products, Inc.Inventors: Terry M. Cadle, Joel H. Mandel, Paul R. Roskopf
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Patent number: 6190606Abstract: The present invention concerns totally solid amalgamating compositions particularly useful in the preparation of dental amalgams for filling cavities and similar dental applications, comprising one or more solid amalgamating alloys, metals and/or intermetallic compounds or combinations thereof, amalgam forming compositions containing such totally solid amalgamating compositions, methods for producing dental amalgams with such totally solid amalgamating compositions or amalgam forming compositions containing them, and denial amalgams produced thereby.Type: GrantFiled: August 13, 1998Date of Patent: February 20, 2001Assignee: Silmet Ltd.Inventors: Alberto Kaufman, Baruch Kopeliovich, Moshe Zalsman
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Patent number: 6190607Abstract: A room air freshener adapted to be used in connection with a register vent. The structure of the freshener is especially formed to be attached to the vent register and includes a formed handle adapted to keep the freshener material adjacent to the grid of the register vent. A certain range in the amount of mass of the freshener is required for a certain volume of air for best operation of the freshener.Type: GrantFiled: June 17, 1998Date of Patent: February 20, 2001Inventor: Mike Farmer
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Patent number: 6190608Abstract: A method and apparatus for inactivating contaminants, particularly nonenveloped viruses, in blood products without the need for quenchers in the blood products. The blood product is flowed through a flow meter at a controlled flow rate and subjected to type C ultraviolet radiation, where the irradiation dose received by the blood product is less than 640 joules/m2. The blood product does not contain quenchers when being irradiated, and the blood product retains more than 85% of its Factor VIII activity after being subjected to the radiation. The produced blood product is free of viruses and quenchers, avoiding potential toxicity due to the quenchers. The apparatus includes a source of UVC light, a quartz tube containing the blood product while it is exposed to the UVC light, a flow meter for controlling the flow rate of the blood product to be treated, and a pump. The UV light preferably emits light at 254 nm.Type: GrantFiled: March 23, 1998Date of Patent: February 20, 2001Assignee: Croix-Rouge de Beligique Departement Central de FractionnementInventors: Ruth Laub, Luc De Wael, Mario Di Giambattista
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Patent number: 6190609Abstract: Apparatus and methods for treating a biological fluid with light and for inactivating contaminants in biological fluid. The biological fluid is contacted with a light source providing a high intensity light to the biological fluid. The biological fluid may include a quantity of a photochemical agent that when activated by light is operable to cause inactivation of at least some of the contaminants.Type: GrantFiled: May 18, 1998Date of Patent: February 20, 2001Assignee: Baxter International Inc.Inventors: John R. Chapman, Peter R. H. Stark, Michael V. Swallow, Dale N. Larson
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Patent number: 6190610Abstract: A food contamination detector. The food contamination detector comprises a first bar code symbol coded to identify a food product by a bar code reader, a second bar code symbol coded to identify contaminated food by a bar code reader, and an indicator printed onto a substrate which changes color when food is contaminated and causes the first bar code symbol to be unreadable by a bar code reader and causes the second bar code symbol to become readable by a bar code reader.Type: GrantFiled: July 12, 1999Date of Patent: February 20, 2001Assignee: California South Pacific InvestorsInventors: Robert M. Goldsmith, Catherine H. Goldsmith, James G. Woodaman
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Patent number: 6190611Abstract: A harness indicator is highly reactive to a trace amount of Ca2+, and is slow to degrade in a high temperature environment of greater than 50° C. In one embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of Mg-EDTA. In another embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of anhydrous Mg-EDTA. In another embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of anhydrous Mg-EDTA and potassium sorbate. In a further embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of Mg-EDTA and potassium sorbate. In a further embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of potassium sorbate.Type: GrantFiled: August 27, 1998Date of Patent: February 20, 2001Assignees: Miura Co., LTD.,, Miura Institute of Research & Development Co., Ltd.Inventors: Kazuhiro Tachino, Yoshitami Tsubota, Sadatoshi Takechi, Junichi Nakajima, Masazumi Yamashita, Katsufumi Isshiki, Takeshi Fukumura, Yuuji Ukena
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Patent number: 6190612Abstract: Optical sensor formulations comprising polymeric sensing formulations and methods of predictably making optical sensor formulations, for, e.g., measuring O2 levels in patient blood samples. These formulations may be, e.g., deposited as a membrane on light-transmissive substrates. In an embodiment, O2-sensing formulations may be made by a process including selecting a first homopolymer comprised of first monomeric units, the first homopolymer having a first PermO2 value; selecting a second homopolymer comprised of second monomeric units, the second homopolymer having a second PermO2 value that is different from the first PermO2 value; and copolymerizing the first and second monomeric units to obtain a copolymer having an intermediate PermO2 value, i.e., between the two PermO2 values, the intermediate PermO2 providing the desired PermO2 for the desired oxygen sensing formulation.Type: GrantFiled: January 21, 1998Date of Patent: February 20, 2001Assignees: Bayer Corporation, Novartis AGInventors: Joseph Berger, Thomas C. Collins, Rudolf E. Slovacek
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Patent number: 6190613Abstract: A sample concentration device is provided in which a gaseous sample is concentrated by cooling a portion of a gas transfer line through which the sample is introduced into a detecting apparatus, such as a gas chromatograph or the like. The device is characterized by a cooling device for cooling a portion of the gas transfer line, which is housed in a constant temperature chamber, by spraying a coolant from a nozzle facing the portion of the gas transfer line, and by a gas flow device for creating a substantially dry gas flow through the nozzle to prevent the nozzle from becoming plugged with ice formed by freezing of moisture in the air inside the constant temperature chamber when the coolant spray is stopped. An outer jacket surrounding a portion of the gas transfer line which is subjected to cooling is also disclosed.Type: GrantFiled: April 30, 1999Date of Patent: February 20, 2001Assignee: Frontier Laboratories Ltd.Inventors: Chuichi Watanabe, Akihiko Hosaka, Kunitaka Sato, Masami Morikawa, Shin Tsuge
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Patent number: 6190614Abstract: It is an object to provide an apparatus adaptable to an apparatus for analyzing liquid samples in the chemical field or the biochemical field, and capable of performing pretreatment, such as washing of the needle and diluting of the collected sample.Type: GrantFiled: November 3, 1999Date of Patent: February 20, 2001Assignee: Tosoh CorporationInventor: Shingo Fukunaga
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Patent number: 6190615Abstract: A test tube apparatus including a container body (1) with a cavity (3) which is essentially prismatic and has an essentially rectangular cross section, a cylindrical connecting part (5) for filing, and a flat laminar zone (7) developed as an extension of one of the walls of the cavity. Information which can be read optically, such as bar codes or the like, may be accommodated this flat laminar zone (7).Type: GrantFiled: November 9, 1998Date of Patent: February 20, 2001Assignee: Diesse Diagnostica Senese S.R.L.Inventors: Francesco Cocola, Antonio Ricci
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Patent number: 6190616Abstract: A capillary valve, connector and router where one or more cylindrical fibers, which may be capillaries, plugged capillaries, optical fibers, or the like, including at least one capillary tube are contained in a first cylindrical bundle of fibers that terminates at a first face. A second cylindrical bundle of fibers also containing one or more fibers including at least one capillary tube terminates in a second face abutting the first face. A fastener or adapter holds the members together with faces in mutually biased alignment, allowing relative rotation of the two cylindrical bundles which terminate in rotatable ferrules. Various functions achieved by rotation include a zero dead volume slide valve, a fluid router and a manifold. The fibers in each sleeve are preferably of uniform size for close symmetrical packing, but could be of disparate sizes, allowing connection of macroscale tubes to capillary tubes.Type: GrantFiled: September 11, 1997Date of Patent: February 20, 2001Assignee: Molecular Dynamics, Inc.Inventors: Stevan B. Jovanovich, Gregory J. Ronan, David J. Roach, Richard F. Johnston
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Patent number: 6190617Abstract: A sample container segment assembly for use in an automated, continuous, and random access analytical system is disclosed. The assembly includes a sample container which is received by a sample container segment, and the sample container segment is received on a carousel of the automated analytical instrument. The test sample container includes an upper skirt and a body having a reservoir for receipt of the test sample. The segment includes a base, a frame, and a handle. The frame has a shelf for which the upper skirt of the test sample container rests on, and has openings for receipt of the body of the sample container. The carousel has a carousel trough for receipt of the base of the sample container segment, and has a plurality of alignment pins disposed in the carousel trough. The base of the sample container segment has a circular slot and an elongated slot for receiving the alignment pins and positioning the sample container segment relative to the carousel.Type: GrantFiled: October 23, 1997Date of Patent: February 20, 2001Assignee: Abbott LaboratoriesInventors: Frederick L. Clark, Larry W. Moore, Donny Ray Walker, John M Clemens, William J. Kanewske, III, B. Jane Smith
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Patent number: 6190618Abstract: A garbage processor has a vessel for receiving garbage, a rotary pulverizer/stirrer for crushing and stirring the garbage in the vessel and a first heater for drying the garbage in the vessel. A steam is generated upon heating and drying of the garbage. An air blower feeds a high pressure an ambient air into the vessel to force the steam out of the vessel. A steam separator is provided for separating the steam into a water and a gas. A second heater is provided downstream of the steam separator for oxidizing the gas emanating from the steam separator to reduce a smell of the gas. The gas is deodorized before it is discharged to the atmosphere.Type: GrantFiled: September 1, 1999Date of Patent: February 20, 2001Assignee: Jidosha Buhin Kogyo Co., LtdInventors: Tadaaki Nekozuka, Kiyoshi Fukushima, Hirohide Nakao, Tomio Terayama, Akihiro Shirata, Sinichiro Fujita, Kenichi Ueda, Masami Hatayama, Hiroshi Ohdate
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Patent number: 6190619Abstract: Systems and methods for synthesizing chemical compounds using a plurality reaction vessels. In particular, the present invention provides a synthesis apparatus capable of holding a plurality of reaction vessels for parallel synthesis of multiple discrete compounds or for combinatorial libraries of compounds. In one embodiment, a synthesis apparatus comprises a frame having a plurality of reaction vessel-holding openings and a plurality of valves for use in parallel synthesis of a plurality of compounds within reaction vessels.Type: GrantFiled: June 10, 1998Date of Patent: February 20, 2001Assignee: Argonaut Technologies, Inc.Inventors: Christopher Kilcoin, Steve Miller, Terry Long
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Patent number: 6190620Abstract: A wet flue gas desulfurizer wherein sulfur dioxide is absorbed into a slurry and an oxygen-containing gas is blown into the slurry to oxidize sulfites present in the slurry is characterized in that a slurry oxidation tank is equipped with a return pipeline for returning a portion of the slurry to a position at or near the bottom of the slurry oxidation tank, and the oxygen-containing gas is blown in at the discharge end of the return pipeline so as to divide the oxygen-containing gas finely by the action of the slurry returned through the return pipeline.Type: GrantFiled: November 4, 1998Date of Patent: February 20, 2001Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takeo Shinoda, Toru Takashina, Masakazu Onizuka
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Patent number: 6190621Abstract: The speed of coal gas desulfurization is improved and the total size of the apparatus can be made compact. The apparatus comprises a sulfide-ion-producing portion (54), which reacts with a sulfur compound being supplied by the coal gas and produces sulfide ion S2− in molten carbonate. A sulfur compound discharge portion (53) discharges a sulfur compound produced by a reaction with sulfur discharge gas (56).Type: GrantFiled: May 26, 1998Date of Patent: February 20, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Keijiro Yamashita, Keiji Murata, Michio Hori, Takashi Ogawa