Patents Examined by M. L. Bell
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Patent number: 6025311Abstract: A stable fluid polymer suspension is composed of at least one water soluble polysaccharide polymer in an aqueous carrier fluid in which the polysaccharide polymer does not significantly swell or dissolve where the polysaccharide polymer in the aqueous carrier fluid has the measured properties of:i) rendering the polymer(s) insoluble, resulting in a cloudy dispersion,ii) limiting the swelling of insolubilized polymer(s), leading to a polymer sediment volume of a 1 weight percent polymer dispersion to less than 1%, andiii) preventing phase separation for at least one week.This invention also Includes a method of preparing the stable fluid polymer suspension having the above mentioned measured properties. The stable aqueous fluid suspension of this invention is a clear, odorless, and stable formulation and is used in cosmetics, personal care, and household products.Type: GrantFiled: December 17, 1993Date of Patent: February 15, 2000Assignee: Aqualon CompanyInventors: Mary Theresa Clarke, Teng-Shau Young
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Patent number: 5785946Abstract: This invention relates to new crystalline organic compositions having unique combinations of framework-confined uniform mesopores and textural mesopores and to a method for their preparation. The compositions typically possess a framework wall thickness of at least about 17.ANG., small elementary particle size of less than about 400.ANG., and ratio of textural to framework-confined mesoporosity of greater than about 0.2. The formation of the mesoporous structure is accomplished by a novel self-assembly mechanism involving hydrogen bonding between neutral amine surfactant (S.degree.) and neutral inorganic oxide precursor (I.degree.). This S.degree.I.degree. templating approach allows for facile and environmentally benign recycling of the cost-intensive template by simple solvent extraction methods.Type: GrantFiled: February 28, 1997Date of Patent: July 28, 1998Assignee: Board of Trustees operating Michigan State UniversityInventors: Thomas J. Pinnavaia, Peter T. Tanev
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Patent number: 5593493Abstract: A method of making concrete from base metal smelter slag includes grinding the slag to a size within the range of from about -250 to about 425 mesh to produce ground slag cement, mixing the ground slag cement with Type 3 high early strength Portland cement in a ratio of at least about 0.5:1 by weight, and adding sand and stone to produce a concrete.Type: GrantFiled: June 26, 1995Date of Patent: January 14, 1997Inventor: David Krofchak
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Patent number: 5454865Abstract: A method which enables economical and highly effective preparation of refined kaolin clay products having preselected particle size distributions and brightnesses, by means of separate, efficient and economical processing of at least two crude components. A fine particle size kaolin crude having a PSD such that at least 85% by weight of the particles are of less than 2 micrometers ESD is wet beneficiated to provide a first product component having a PSD of at least 95% by weight less than 2 micrometers and a brightness of at least 89 on the G.E. scale. This wet beneficiation is conducted without use of a froth flotation step. A coarse particle size kaolin crude having a PSD such that less than 85% by weight of particles are of less than 2 micrometers ESD, is separately wet beneficiated to produce a second product component having a PSD of no more than 85% by weight less than 2 micrometers and a brightness of at least 89 on the G.E. scale.Type: GrantFiled: December 23, 1993Date of Patent: October 3, 1995Assignee: ECC International Inc.Inventors: Michael W. Ginn, Gary Cobb
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Patent number: 5294599Abstract: Fine and homogeneous oxide particles for superconductors which can be sintered at a low temperature are prepared in a liquid phase by the sol-gel method using alkoxides as starting materials. By forming a buffer layer between a substrate and a superconducting film, good-quality and oriented superconducting film can be fabricated. Highly c-axis-oriented superconducting film and bulk products can be prepared from particular starting compositions in Ln-Ae-Cu-O and Bi-Ae-Cu-O systems. The oriented film can be produced by painting a paste of such starting compositions on a substrate followed by sintering, and the bulk form can be produced by pressing the pre-sintered powder of such starting compositions.Type: GrantFiled: February 15, 1989Date of Patent: March 15, 1994Assignee: Nippon Telegraph and Telephone CorporationInventors: Shuichi Shibata, Takeshi Kitagawa, Hisaaki Okazaki, Takao Kimura, Masaharu Horiguchi
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Patent number: 5227267Abstract: A high discharge rate electrochemical battery structure is disclosed as having a perforated disc electrode stack comprising pluralities of disc electrodes respectively connected to a pair of busbars. Each disc electrode has a tab with two fins which are bent at 90 degrees to the disc electrode. Each fin is inserted between two parts of the corresponding busbar and welded thereto. The design of the busbars and disc electrodes provides for redundancy of electrical contact, high thermal and electrical conductivity and improved resistance to mechanical shock.Type: GrantFiled: November 1, 1990Date of Patent: July 13, 1993Assignee: Yardney Technical Products, Inc.Inventors: Franz Goebel, David C. Batson, William T. McHugh
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Patent number: 4547223Abstract: This invention relates to a cement-shrinkage-reducing agent and a cement composition comprising a compound of the general formula RO(AO).sub.n H (in which R represents a C.sub.1-7 alkyl or C.sub.5-6 cycloalkyl radical, A represents one or more C.sub.2-3 alkylene radicals, and n has a value of 1-10) for use in making cement mortar and concrete.Type: GrantFiled: May 4, 1982Date of Patent: October 15, 1985Assignee: Nihon Cement Co., Ltd.Inventors: Takaharu Goto, Takeshi Sato, Kouzou Sakai, Motohiko Ii
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Patent number: 4470922Abstract: Phosphate neodymium glass for laser use, consisting of phosphoric anhydride, an oxide of at least one of alkaline metals, and neodymium oxide or a mixture of neodymium oxide and oxide of at least one of the following metals; La, Gd, Lu, Sc, Y, Al, Cr; the ratio between the above-cited components as follows (mol. %):______________________________________ phosphoric anhydride 64-77 oxide of at least one of alkaline metals 26-8 neodymium oxide or a mixture of neodymium 10-15 oxide with an oxide of at least one of the metals: Ln, Gd, Lu, Sc, Y, Al, Cr. ______________________________________The herein-proposed invention is intended for producing active elements for lasers of a wide purpose including thin-film and miniature lasers with generation wavelengths within the ranges 1.06 and 1.34.mu.. Phosphate neodymium glass for laser use of the developed composition can be synthesized in required amounts by a simple method.Type: GrantFiled: August 30, 1983Date of Patent: September 11, 1984Inventors: Boris I. Denker, Alexandr Y. Karasik, Galina V. Maximova, Alexandr A. Maljutin, Vyacheslav V. Osiko, Pavel P. Pashinin, Alexandr M. Prokhorov, Ivan A. Scherbakov
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Patent number: 4359536Abstract: A novel frit glass composition is disclosed which is particularly useful to apply color coatings to the soda-lime glass envelopes of incandescent lamps. Specifically, the present glass frit can be combined with various inorganic coloring pigments to produce a colored coating when fired on the surface of the lamp glass envelope. The glass frit is a composition expressed in terms of weight percent, as calculated on the oxide basis, as follows:______________________________________ ZnO 25-31 SiO.sub.2 12-20 B.sub.2 O.sub.3 19-35 Al.sub.2 O.sub.3 1-4 Na.sub.2 O 5-10 CaO 7-9 BaO 2-6 ZrO.sub.2 0.5-4 F 1-2 K.sub.Type: GrantFiled: February 16, 1982Date of Patent: November 16, 1982Assignee: General Electric CompanyInventors: William A. Graff, Jaroslaw Kohut
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Patent number: 4358541Abstract: The present invention is directed to the production of glass-ceramic coatings capable of being fired repeatedly to temperatures in excess of 950.degree. C. without thermal deformation and being especially suitable for application to titanium-stabilized stainless steels. The coatings are highly crystalline, substantially free from alkali metal oxides, and consist essentially, by weight, of:______________________________________ MgO 5-35 CaO 0-35 ZnO 0-25 CaO + ZnO 10-35 Al.sub.2 O.sub.3 0-10 B.sub.2 O.sub.3 0-25 P.sub.2 O.sub.5 0-10 B.sub.2 O.sub.3 + P.sub.2 O.sub.5 4-25 SiO.sub.Type: GrantFiled: November 23, 1981Date of Patent: November 9, 1982Assignee: Corning Glass WorksInventors: Ronald L. Andrus, Kenneth Chyung, Richard F. Reade, deceased, by Clara M. Reade, administratrix
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Patent number: 4354991Abstract: A dense sintered silicon carbide ceramic has high strength and a flexural strength of at least 25 kg/mm.sup.2 at room temperature and 1400.degree. C. which is obtained by molding a mixture of an aluminum oxide source at a ratio of 0.5 to 35 wt. % as Al.sub.2 O.sub.3 and silicon carbide at a substantial residual portion followed by a pressureless sintering.Type: GrantFiled: July 14, 1981Date of Patent: October 19, 1982Assignee: Asahi Glass Company, Ltd.Inventors: Keiichiro Suzuki, Takuro Ono, Nobuhiro Shinohara
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Patent number: 4351906Abstract: The present invention is drawn to glasses suitable for the fabrication of segments or buttons for multifocal ophthalmic lenses. The inventive glasses have refractive indices ranging between about 1.745-1.771, an Abbe number greater than 29 for a refractive index of 1.771 and greater than 31 for a refractive index of 1.745, a softening point between about 640.degree.-700.degree. C., a coefficient of thermal expansion (25.degree.-300.degree. C.) between about 90-98.times.10.sup.-7 /.degree.C., and satisfactory chemical durability. The glasses consist essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ SiO.sub.2 28-32.5 Na.sub.2 O 2-9 K.sub.2 O 0-4 Li.sub.2 O 0-1 K.sub.2 O + Na.sub.2 O + Li.sub.2 O 4-10.5 BaO 0-22 La.sub.2 O.sub.3 0-20 BaO + La.sub.2 O.sub.3 14-22 PbO 28.5-34 ZnO 0-4 TiO.sub.2 0-9 ZrO.sub.2 2-6.5 Nb.sub.2 O.sub.5 0-10 TiO.sub.2 + Nb.sub.2 O.sub.5 4.5-12 ZrO.sub.2 + TiO.sub.2 + Nb.sub.2 O.sub.Type: GrantFiled: December 7, 1981Date of Patent: September 28, 1982Assignee: Corning Glass WorksInventors: Jean E. Boudot, Jean P. Mazeau, Andre C. Michaud
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Patent number: 4350771Abstract: Si.sub.3 N.sub.4 polycrystalline ceramic bodies formed from starting materials containing about 2 to 4 weight percent SiO.sub.2, less than 0.1 weight percent cation impurities and Y.sub.2 O.sub.3 in critical amounts exhibit optimum oxidation resistance. Such bodies are useful as engine parts or components or as regenerator structures for waste heat recovery.Type: GrantFiled: September 18, 1981Date of Patent: September 21, 1982Assignee: GTE Laboratories IncorporatedInventor: J. Thomas Smith