Patents Examined by Ben R. Padgett
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Patent number: 4524046Abstract: A method for manufacturing a firm and rigid cam-cam shaft assembly, which comprises the steps: (a) molding a component having through-hole therein from a material of an alloy to be sintered, said material allowing the first ratio of the contraction of the inner diameter of the component at joining portion when the component is singly sintered to the inner diameter thereof before sintering to be more than 2%; (b) presintering said component; (c) assembling said component onto a metal shaft such that said metal shaft may be inserted into said through-hole; and (d) sintering said component assembled onto the metal shaft, whereby the joining of the component to the metal shaft is carried out in such a manner that the second ratio of the difference between the outer diameter of the metal shaft and the inner diameter of the contracted component after sintering to the outer diameter of the metal shaft is more than 2%.Type: GrantFiled: April 16, 1984Date of Patent: June 18, 1985Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tetsuya Suganuma, Koji Kazuoka, Shuichi Fujita, Yoshitaka Takahashi, Katsuhiko Ueda, Hitoshi Nakamura
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Patent number: 4522922Abstract: Ligand having at least two determinant or binding sites is contacted with a labeled first binder, an unlabeled second binder different than the first binder and a precipitating binder specific for the second binder, with such contacting precipitating a complex of the ligand and the first and second binders to thereby separate bound labeled binder from unbound labeled binder. The bound and/or unbound labeled binder is determined as a measure of the ligand.Type: GrantFiled: April 16, 1982Date of Patent: June 11, 1985Inventors: Jose Carro, Frank de Velasco
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Patent number: 4522102Abstract: A semi-automatic cartridge reloading machine of the type including a lower travelling platen with a rotatable support for sequentially positioning a plurality of cartridges in each of a series of operating stations and including an upper stationary platen with a plurality of tools or dies depending or extending downwardly and spaced circumferentially about the upper stationary platen and centered over the rotatable support defining a plurality of operating stations is provided with mechanisms for automatically rotating the support to reposition the cartridges in subsequent operating stations at the completion of each reloading step or operation, automatically centering cartridges and removing spent primers from cartridges, automatically belling and admitting powder into cartridges, automatically introducing and inserting new primers into cartridges, automatically introducing and inserting bullets into cartridges, and automatically crimping and seating bullets into cartridges simultaneously and in conjunctionType: GrantFiled: June 27, 1983Date of Patent: June 11, 1985Inventor: Ralph D. Pickens
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Patent number: 4522769Abstract: An improved method for compression molding typically brittle, particulate ceramic materials comprising uranium dioxide in the manufacture of nuclear fuel products.Type: GrantFiled: August 24, 1982Date of Patent: June 11, 1985Assignee: General Electric CompanyInventors: John D. Connolly, Jr., Timothy J. Gallivan, Richard P. Ringle
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Patent number: 4521316Abstract: A well-treating fluid of high density, solids-free and corrosion-resistance is formed comprising an aqueous solution of at least 50% by weight tetrapotassium pyrophosphate and a salt which can be either monopotassium orthophosphate, dipotassium orthophosphate or tripotassium orthophosphate, or mixtures thereof, wherein the salt is present in amounts sufficient to yield a predetermined pH in said fluid of about 8.5 to about 12, a predetermined specific gravity of at least about 1.65, and has high resistance to recrystallization of its solutes.Type: GrantFiled: March 11, 1983Date of Patent: June 4, 1985Assignee: FMC CorporationInventor: Charles F. Sikorski
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Patent number: 4521248Abstract: A process for producing titanium nitride base cermet with a high toughness comprises the steps of:admixing 0.5 to 10 parts by volume of a carbon powder with a cermet material powder in an amount of 100 parts by volume based on nitrides in the cermet material powder, the cermet material powder essentially consisting of, by weight, 40 to 93% TiN, 2 to 15% of one or more selected from the group consisting of metals of the Group VIa of the periodic table and carbides thereof, 4.7 to 35% of iron group metal, and 0.3 to 10% of AlN with the balance being inevitable impurities,compacting and sintering whereby when the compact is sintered, said AlN is substantially decomposed.TiN may be partly replaced with carbides and/or carbonitrides of metals of the Groups IVa and Va of the periodic Table.Type: GrantFiled: August 20, 1984Date of Patent: June 4, 1985Assignee: NGK Spark Plug Co., Ltd.Inventors: Yoshihiro Yamamoto, Junichiro Suzuki, Minoru Nakamura
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Patent number: 4521519Abstract: The present invention provides a reagent for the precipitation of apo-B-containing lipoproteins, wherein it comprises 0.2 to 3 grams per liter of phosphotungstic acid and more than 2 mmols per liter of magnesium ions in aqueous solution.The present invention also provides a process for the preparation of this reagent and a process for the precipitation of apo-B-containing lipoproteins using this reagent.Type: GrantFiled: April 19, 1982Date of Patent: June 4, 1985Assignee: Boehringer Mannheim GmbHInventors: Brigitte Draeger, Joachim Ziegenhorn
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Patent number: 4520113Abstract: This invention relates to the detection of antibodies in sera of AIDS and pre-AIDS patients and describes the biochemical and immunological analysis of antigens associated with the virus HTLV-III Human T-Cell Leukemia Virus. It is shown that antigens associated with the infection of human cells by this virus are specifically recognized by antibodies from AIDS patients. Specifically, HTLV-III isolated from AIDS patients and transmitted by cocultivation with an HT cell line is specifically detected by antibodies from human sera taken from AIDS patients. The method of detection of antibodies preferred is a strip radioimmunoassay (RIA) based on the Western Blot technique or an ELISA (an enzyme-linked immunosorbent assay) or an indirect immunofluorescence assay.Type: GrantFiled: April 23, 1984Date of Patent: May 28, 1985Assignee: The United States of America as represented by the Secretary of the Department of Health and Human ServicesInventors: Robert C. Gallo, Mikulas Popovic, Mangalasseril G. Sarngadharan
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Patent number: 4520226Abstract: A reagent and the protocol for the treatment of Graft Versus Host Disease is disclosed. Monoclonal antibodies specific for T-lymphocytes in human donor bone marrow are covalently linked to separate ricin toxin, combined in a mixture to form a treatment reagent, and combined with bone marrow removed from a human donor. The bone marrow-reagent mixture is then infused into an irradiated recipient. This protocol virtually eliminates T-lymphocyte activity, the cause of Graft Versus Host Disease.Type: GrantFiled: January 7, 1983Date of Patent: May 28, 1985Assignee: The United States of America as represented by the Department of Health and Human ServicesInventors: David M. Neville, Jr., Richard J. Youle
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Patent number: 4519839Abstract: A sintered high vanadium high speed steel with an excellent hardness and ductility of composition C 1.4-6.2%, W+2 Mo (W-equivalent) 10.0-24.0%, Cr 3.0-6.0%, V 8.5-28%, Co less than 17%, the remainder Fe and inevitable impurities, and a method of producing same.It can be produced by the steps of commingling the alloy constituents in the form of pulverulent oxides and carbon powder, heating the mixture in a stream of hydrogen, thereby reducing the mixture by the carbon and hydrogen simultaneously to yield an alloy powder, adjusting the composition and the grain size of the obtained alloy powder, pressing the alloy powder to a compact, sintered the compact in a vacuum, and finally converting the matrix of the sintered body into martensite by heat treatment.Type: GrantFiled: October 3, 1984Date of Patent: May 28, 1985Assignees: The Furukawa Electric Co., Ltd., Kanto Denka Kogyo Co., Ltd., Fujidie Co., Ltd.Inventors: Ishibachi Toyoaki, Yoshihara Minoru, Takuma Takashi, Fuke Yasunori, Maeda Masayuki
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Patent number: 4519923Abstract: A fluid composition suitable for use in drilling containing a sulfoethylcellulose alkali metal salt of which a degree of substitution is from 0.5 to 2.5 and the viscosity of a 1% by weight aqueous solution is 5 to 5,000 cP. The sulfoethylcellulose alkali metal salt has excellent water loss reducing ability and viscosity building ability and is soluble and stable in the presence of any monovalent and polyvalent salts at a wide pH range, and is applicable as a high molecular additive to a drilling mud and a completion fluid.Type: GrantFiled: April 3, 1984Date of Patent: May 28, 1985Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Yuji Hori, Yoshichika Nishimura, Fuminobu Takahashi
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Patent number: 4518659Abstract: The high pressure/high temperature catalyst sweep through process for making diamond and cubic boron nitride compacts has been improved by adding an intermediate metal or metal alloy. The added metal (whether alone or contained in an alloy) has a melting point below that of the catalyst (e.g. cobalt), is miscible with the catalyst, and preferably sweeps through the mass of abrasive crystals first. This modification has reduced flaw formation in such compacts.Type: GrantFiled: September 23, 1983Date of Patent: May 21, 1985Assignee: General Electric CompanyInventors: Paul D. Gigl, Hyun S. Cho
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Patent number: 4517252Abstract: A thick film conductor material comprising metal particles containing both gold and at least one additional element prealloyed into a single particle. The additional element may preferably be Pd and the prealloying may preferably be accomplished by coprecipitation. The conductor material, when bonded with Al wire, impedes the growth of intermetallic compounds and subsequent Kirkendall voids, even at elevated temperatures.Type: GrantFiled: May 6, 1983Date of Patent: May 14, 1985Assignee: The Boeing CompanyInventor: Steven C. Hugh
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Patent number: 4517111Abstract: A composition of matter comprising a permanganate salt adsorbed or chemisorbed onto a solid alkaline support useful in a method for irreversibly removing or decreasing the amount of formaldehyde in the atmosphere. The composition further provides a color change indication when the formaldehyde absorbing characteristic is exhausted. The composition can be employed in molded, pellet, particle or powder form as, for example, in a respirator filter cartridge.Type: GrantFiled: January 16, 1984Date of Patent: May 14, 1985Assignee: The Dow Chemical CompanyInventors: Linneaus C. Dorman, Vernon A. Stenger
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Patent number: 4517115Abstract: A vinyl halide resin stabilizer composition which essentially contains:(a) an antimony organic sulfur-containing compound, for example, antimony mercaptoacid esters, antimony alkyl mercaptides, and the like,(b) an alkaline earth metal salt of a carboxylic acid, such as calcium stearate, and(c) an alkali metal carbonate, such as sodium carbonate.These compositions synergistically contribute to the dynamic processing stability of vinyl halide resin compositions. Rigid polyvinyl chloride compositions are stabilized against dynamic processing conditions of heat and shearing forces.Type: GrantFiled: September 30, 1982Date of Patent: May 14, 1985Assignee: Plastic Specialties and Technologies, Inc.Inventors: Dale J. Dieckmann, Charles W. Fletcher
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Patent number: 4517100Abstract: A wellbore fluid having improved lubricating properties for drilling in formations in the earth comprising water and a lubricant composition containing a mixture of a chlorinated component and a sulfurized component in proportions to produce a lubricant composition containing 15 to 30 weight percent chlorine and 2 to 10 weight percent sulfur.Type: GrantFiled: February 7, 1983Date of Patent: May 14, 1985Assignee: Witco Chemical CorporationInventors: Weldon B. Nance, Jack M. Calkins
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Patent number: 4515667Abstract: Alpha-hydroxy carboxylic acids, such as lactic acid and mandelic acid, are photochemically converted to form high yields of the corresponding alcohol by irradiating a solution containing the alpha-hydroxy carboxylic acid in contact with the semiconductor catalyst material. The semiconductor catalyst material is preferably a metal titanium oxide. The photochemical reaction may be carried out over a wide range of temperatures and pressures and in an oxidative or inert atmosphere.Type: GrantFiled: July 19, 1983Date of Patent: May 7, 1985Assignee: The Standard Oil CompanyInventor: Rosemary Bartoszek-Loza
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Patent number: 4514319Abstract: Hydrocarbon oil based antifoams compositions containing a hydrocarbon-silicon copolymer, a hydrophobic filler, an organo-silicone surfactant, a hydrocarbon carrier oil and optionally a silicone oil act to effectively defoam concentrated solutions, including those containing ionic surfactants or protein based solutions. The use of the hydrocarbon oil based silicone antifoams represents an inexpensive route to defoams difficult solutions.Type: GrantFiled: March 25, 1983Date of Patent: April 30, 1985Assignee: Union Carbide CorporationInventors: Ravi D. Kulkarni, E. Desmond Goddard, Michael P. Aronson
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Patent number: 4514224Abstract: A titanium carbide base cermet with a high toughness which consists essentially of, in weight percentage, a dispersed phase of from 70 to 95% free from chromium carbide, and a binder phase of from 5 to 30%;(1) said dispersed phase consisting essentially of:(i) titanium nitride: from 10 to 25%,(ii) at least one of tungsten, molybdenum and carbides thereof: from 10 to 30%,(iii) zirconium carbide: from 0.2 to 5.0%,(iv) aluminum nitride: from 0.1 to 5.0%, and(v) A composite carbide produced by substituting at least one of tantalum carbide and niobium carbide for from 3 to 50% of titanium carbide: balance: and,(2) said binder phase consisting essentially of at least one metal of iron group and incidental impurities.Type: GrantFiled: November 22, 1983Date of Patent: April 30, 1985Assignee: Mitsubishi Kinzoku Kabushiki KaishaInventor: Kenichi Nishigaki
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Patent number: 4512915Abstract: A composition for inhibiting corrosion by water of metal substrates comprises zinc gluconate or glucoheptonate and at least one water-soluble inorganic polyphosphate.Type: GrantFiled: August 24, 1982Date of Patent: April 23, 1985Assignee: Roquette FreresInventors: Jean-Claude Lumaret, Serge Gosset, Michel Huchette