Patents Issued in February 5, 1991
  • Patent number: 4990304
    Abstract: A nuclear fuel assembly has mechanical elements which constrain the flux thimble tube within the instrumentation tube to maintain physical contact with the interior surface of the instrumentation tube at a plurality of points staggered on a single-diametral plane and spaced substantially throughout the length of the instrumentation tube. The staggered mechanical elements induce a controlled elastic sinuous deflection of the inner thimble tube. The mechanical elements can take several different forms, for example, dimples or cantilevered spring fingers formed in the wall of the instrumentation tube and projecting radially inwardly therefrom.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: February 5, 1991
    Assignee: Westinghouse Electric Corp.
    Inventor: John A. Rylatt
  • Patent number: 4990305
    Abstract: A method of producing enhanced radial texture in zirconium alloy tubing suitable for use in forming cladding for nuclear fuel rods is provided. The tubing production method described herein employs a combination of mechanical expansion and heat treatment steps in the final stage of tubing formation to produce a single peak radial texture in the tubing, thereby imparting enhanced resistance to pellet-cladding-interaction to the finished tubing. The tubing is preferably processed to a diameter within less than about 10 to 20% of the desired final diameter, annealed, and expanded less than about 10 to 20% to the desired final diameter, thereby producing a unique radial texture in the finished tubing. In an alternative method, the finally expanded tubing is subjected to a final recrystallization anneal to produce a significantly enhanced split radial texture.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: February 5, 1991
    Assignee: Westinghouse Electric Corp.
    Inventors: John P. Foster, Charles S. Cook, George P. Sabol
  • Patent number: 4990306
    Abstract: The invention relates to a method of producing a sintered Nd-Fe-B magnet which has a cylindrical or annular shape and is magnetized in radial directions with polar anisotropic orientation. In a cylindrical mold cavity filled with a Nd-Fe-B magnetic alloy powder a pulse of magnetic field is produced so as to cause polar anisotropic orientation of the magnetic powder with at least six poles distributed around the circumference, and a pulse-like pressure is applied to the powder in the mold cavity to compact the powder into a cylindrically shaped body while the pulse of magnetic field is lasting. The shaped body is sintered, and subsequently the side surface of the sintered body is abraded to remove projecting regions, which are attributed to anisotropic shrinkage during sintering, until the surface becomes accurately cylindrical.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: February 5, 1991
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Ken Ohashi
  • Patent number: 4990307
    Abstract: Particles for the production of permanent magents are obtained by producing an article having Ca and a rare earth oxide including at least Nd oxide. The article is heated to effect Ca rare earth oxide reduction. Thereafter, particles of -60 mesh or finer are formed from this article. Leaching of Ca from the particles is achieved by contacting the particles with an organic acid having at least 3 carbon atoms, preferably propionic or butanoic acid.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: February 5, 1991
    Assignee: Crucible Materials Corporation
    Inventor: Floyd E. Camp
  • Patent number: 4990308
    Abstract: An alloy having a niobium titanium base and aluminum and chromium additives is provided. The alloy has superior strength and ductility at high temperatures.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: February 5, 1991
    Assignee: General Electric Company
    Inventor: Melvin R. Jackson
  • Patent number: 4990309
    Abstract: A high strength copper alloy of excellent bending processability containing Ni: 5-20 wt %, Sn: 0.5-3 wt %, Al: 0.5-5 wt %, Mg: 0.001-0.05 wt %, Cr: 0.001-0.1 wt %, Zn: 0.05-5 wt %, the balance of Cu and inevitable impurities, and having a tensile strength of from 80 to 120 kgf/mm.sup.2. Up to 0.2 wt % of one or more of Fe,Mn,Ti,Zr,P,In,Ta and Co can be added without a deleterious effect. The alloy is non-toxic and economical, as well as shows tensile strength and elongation at least comparable with beryllium-copper alloy and has excellent solderability and solder-resistant and heat resistant peelability. The alloy can be used suitably as materials for electric terminals, connectors, etc.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: February 5, 1991
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Motohisa Miyafuji, Riichi Tsuno, Tatsuya Kinoshita, Hitoshi Tanaka
  • Patent number: 4990310
    Abstract: A creep-resistant die casting is formed of a zinc-base alloy comprising about 4 to 12 percent copper and about 2 to 4 percent aluminum. The die casting is characterized by an intimate dispersion of fine epsilon and eta phases effective to retard slip and thereby enhance creep resistance.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: February 5, 1991
    Assignee: General Motors Corporation
    Inventors: Moinuddin S. Rashid, M. David Hanna
  • Patent number: 4990311
    Abstract: An apparatus and method for deodorizing a gas mixture including air and a malodorous substance having a flow passage for the gas mixture and a fan for inducing air flow in a predetermined direction through the passage. An ultraviolet lamp for generating uv rays below a critical wavelength is in the flow passage for generating ozone from the air in the gas mixture. An ozone-decomposing catalyst layer is in the passage for contacting the gas mixture, and an ozone-decomposing ultraviolet lamp for generating uv rays above critical wavelength is positioned to irradiate the layer directly. The intensity of the radiation of the two layers is controlled to avoid the discharge of ozone from the downstream end of the passage.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: February 5, 1991
    Assignee: Tohkai Kogyo Co., Ltd.
    Inventors: Yoichi Hirai, Toshikazu Ito
  • Patent number: 4990312
    Abstract: In the preferred embodiment of the promoted combustion chamber disclosed herein, a thick-walled tubular body that is capable of withstanding extreme pressures is arranged with removable upper and lower end closures to provide access to the chamber defined within the body. A bracket is arranged in the chamber for dependently supporting a test sample of a material being evaluated in the chamber. To facilitate the real-time analysis of a test sample, several pressure-tight viewing ports capable of withstanding the simulated environmental conditions are arranged in the walls of the tubular body for observing the test sample during the course of a test. A replaceable heat-resistant tubular member and replaceable flame-resistant internal liners are arranged to be fitted inside of the chamber for protecting the interior wall surfaces of the combustion chamber during the evaluation tests.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: February 5, 1991
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Michelle A. Rucker, Joel M. Stoltzfus
  • Patent number: 4990313
    Abstract: A switch-controlled, ballasted, low-frequency, ultraviolet device mounted inline in an air-return system of an air-conditioning unit to resupply return air. The air-return system has an upstream filter and downstream cooling coil, drain pan and blower fan. The ultraviolet device is disposed inline between the filter and cooling coil, and in closest proximity to the cooling coil to maximize its effectiveness. Ultraviolet emissions, directed at the cooling coil and drain pan, destroy cooling-coil-and-drain-pan bacterial accumulations, growth of mold spores or slime, dust mites, airborne diseases, pollens and pollutants, and purify such return air.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: February 5, 1991
    Assignee: American Ultra Air, Inc.
    Inventor: Richard W. Pacosz
  • Patent number: 4990314
    Abstract: A fluid catalytic cracking (FCC) process and apparatus which employs relatively more elutriatable catalyst particles comprising intermediate pore zeolite, particularly ZSM-5, and relatively less elutriatable catalyst particles comprising large pore zeolite, preferably zeolite Y. The process and apparatus employ a first stripping vessel which also separates a more elutriatable first portion of catalyst from a less elutriatable second portion of catalyst. The more elutriatable first portion passes to a second stripping vessel, and subsequently recycles to a fluid catalytic cracking reactor riser. The second portion of less elutriatable catalyst passes from the first stripping vessel to a fluid catalytic cracking regenerator vessel and, after being regenerated, recycles to the reactor riser. The more elutriatable first portion contains a higher ratio of intermediate pore catalyst particles to large pore catalyst particles than does the second portion.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: February 5, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Joseph A. Herbst, Hartley Owen, Paul H. Schipper
  • Patent number: 4990315
    Abstract: In the desulfurization of flue gas utilizing limestone as absorbent in a double loop system, in which the flue gas is introduced into a quenching zone for contact with a first slurry of the limestone, and thereafter passes to an absorbing zone for further contact with a second limestone slurry, the two slurries being supplied from a mixing zone into which water and limestone are charged, and in which air is introduced into the quenching zone to convert the calcium sulfite present in it to gypsum, air is also supplied to the mixing zone to convert calcium sulfite in it to gypsum, and limestone is directly added to the quenching zone.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: February 5, 1991
    Assignee: Tampa Electric Company
    Inventor: James D. Colley
  • Patent number: 4990316
    Abstract: An apparatus for the dissolution of ozone in a fluid such as water, for its treatment by the ozone, by injection in said fluid of ozonic air or ozonic gas, including at least one tube placed vertically in a vertical tubular enclosure and communicating with this enclosure via its lower end and via its upper end with means for supplying the fluid to be treated and the ozonic air or ozonic gas. Said vertical tubular enclosure is closed at both its ends and provided with means for the discharge of the fluid treated and of the ozonic air or gas in excess, characterized in that it is provided with means for the injection of hydrogen peroxide so as to complete the oxidation reaction through a radical route.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: February 5, 1991
    Assignee: Lyonnaise des Eaux
    Inventor: Jean-Pierre Duguet
  • Patent number: 4990317
    Abstract: The specification discloses a process for the treatment of waste gas containing hydrogen chloride wherein the gas is at an elevated temperature in the range of from about 300.degree. F. to about 3000.degree. F. and is produced from the thermal decomposition of material contaminated with hazardous chlorinated organic compounds. The waste gas is contacted in a reaction unit with an alkaline brine solution under conditions such that hydrogen chloride in the waste gas reacts with the alkali to form a chloride salt and water. The heat of the gas evaporates water from the solution to maintain the salt concentration sufficiently high to cause the formation of salt crystals in the solution. The gas is conducted from the reaction unit following contact with the solution under conditions such that the gas includes water evaporated from the solution.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: February 5, 1991
    Assignee: International Technology Corporation
    Inventors: Kai K. Mak, Rudy G. Novak
  • Patent number: 4990318
    Abstract: Hydrogen sulfide is removed from a fluid stream containing hydrogen sulfide and less than 500 ppm of free hydrogen by contacting the fluid stream under suitable absorbing conditions with an absorbing composition consisting essentially of a base material and nickel oxide. Said base material is selected from the group consisting of zinc oxide and zinc titanate, preferably combined with alumina.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: February 5, 1991
    Assignee: Phillips Petroleum Company
    Inventor: Dennis R. Kidd
  • Patent number: 4990319
    Abstract: A process for producing NH.sub.3 and SO.sub.2 from ammonium sulfate, which comprises(i) reacting ammonium sulfate with a metal oxide or hydroxide at a temperature of not more than 200.degree. C. to form NH.sub.3, water and a metal sulfate and recovering NH.sub.3,(ii) decomposing the metal sulfate in the presence of a reducing agent to form a metal oxide and SO.sub.2 and recovering SO.sub.2, and(iii) recycling the metal oxide to step (i) as such or after it is converted to a metal hydroxide.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: February 5, 1991
    Assignees: Kuraray Co., Ltd., Kyowa Gas Chemical Industry Co., Ltd., JGC Corporation
    Inventors: Youji Takenouchi, Katsuhiko Nishiguchi, Kunio Abe
  • Patent number: 4990320
    Abstract: A process for preparing hydrogen fluoride that involves treating anhydrous hydrogen fluoride containing primarily trivalent arsenic impurities with an iodine compound capable of providing iodide ions (e.g., HI) so as to precipitate the arsenic (i.e., as AsI.sub.3) following by separation and recovery (e.g., by distillation or filtration) or purified anhydrous hydrogen fluoride.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: February 5, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William H. Gumprecht
  • Patent number: 4990321
    Abstract: A method for recovering hydrobromic acid and methanol from a filtrate obtained by brominating bisphenol A in a methanol solvent and filtering off the resulting brominated bisphenol A, which comprises adding water to the filtrate, followed by distillation for purification.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: February 5, 1991
    Assignee: Tosoh Corporation
    Inventors: Masakatsu Sato, Sadami Shimizu, Hanzo Tamabayashi
  • Patent number: 4990322
    Abstract: A powerful and stable color center laser is provided by additively colored NaCl:OH.sup.- crystals. The OH.sup.- impurity is the key dopant for creating color center lasing in NaCl, providing an output tunable over the 1.41 to 1.81 .mu.m region. In addition, modelocked pulses of 5 psec duration are available in a synchronously pumped arrangement, tunable from 1.47 to 1.73 .mu.m.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: February 5, 1991
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Clifford R. Pollock, Joseph F. Pinto, Efstratios Georgiou
  • Patent number: 4990323
    Abstract: A composition for a reduction-reoxidation type semiconductive ceramic capcitor is disclosed which consists substantially of 100 mol % of a barium composite oxide consisting of BaTiO.sub.3 and BaZrO.sub.3 and having a BaZrO.sub.3 content in the range of 0 to 20 mol %, 0.3 to 3.0 mol % of Bi.sub.2 O.sub.3, and 0.1 to 8.5 mol % of at least one member selected from the group consisting of TiO.sub.2 and ZrO.sub.2 and further incorporates therein 0.001 to 1.00% by weight of at least one member selected from the group consisting of the oxides of Cr, Fe, Co, Zn, Cu, Al, Si, and Mg. This composition possesses a breakdown voltage of not less than 400 V, an insulation resistance of not less than 10.sup.9 .OMEGA., an electrostatic capacity of not less than 0.65 .mu.F/cm.sup.2 per unit surface area, and a magnitude, tan .delta., of less than 2.5%.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: February 5, 1991
    Assignee: Nippon Oil & Fats Co., Ltd.
    Inventors: Kazuhito Narumi, Fumio Takeuchi, Michiaki Sakaguchi
  • Patent number: 4990324
    Abstract: Aqueous titanium tetrachloride solution and aqueous zirconium nitrate solution of components except zirconium, for forming lead zirconate-tinatate in which part of the lead is substituted for any of the lanthanide elements are mixed, and the mixture is hydrolyzed to form sol. This sol is cleaned, dried, and calcined at 1100.degree. C. to form modified powder. The compounds of the remaining component of lead zirconate-titanate, such as TiO.sub.2 powder, PbO powder and Sm.sub.2 O.sub.3 powder, are mixed with the modified powder, and the resultant mixture is calcined at 750.degree. C. for 1 hour to produce the lead zirconate-titanate.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: February 5, 1991
    Assignees: Nippondenso Co., Ltd., Science and Technology Agency Natl. Institute for Research in Inorganic Materials
    Inventors: Masahiro Tomita, Akira Fujii, Naoto Niwa, Hitoshi Niwa, Shin-ichi Shirasaki
  • Patent number: 4990325
    Abstract: A low temperature method of producing beryllium chloride dietherate through the addition of hydrogen chloride gas to a mixture of beryllium metal in ether in a reaction vessel is described. A reflux condenser provides an exit for hydrogen produced form the reaction. A distillation condenser later replaces the reflux condenser for purifying the resultant product.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: February 5, 1991
    Assignee: The Babcock & Wilcox Company
    Inventors: Charles Bergeron, John E. Bullard, Evan Morgan
  • Patent number: 4990326
    Abstract: Use of labeled monoclonal antibody 50 H.19 to detect the location and concentration of blood platelets in a host is disclosed. MAb 50 H.19 labeled with a label which can be detected from without the host (e.g. a radiolabel or NMR-label) is intravenously injected to immunoreact with platelets in vivo or is first immunoreacted in vitro with platelets, which are then intravenously injected into the host. By means of the labeled MAb 50 H.19 bound platelets it is possible to detect and locate thrombi, emboli, atherosclerotic obstructions, bacterial endocarditis and to do spleen imaging. In another embodiment of the invention, the MAb 50 H.19 is bound to an enzymatic thrombolytic agent and injected intravenously to permit the therapeutic application of the agent directly to thrombi.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: February 5, 1991
    Assignee: Summa Medical Corporation
    Inventors: Antoine A. Noujaim, Bryan M. Longenecker
  • Patent number: 4990327
    Abstract: A dental desensitizing two-phase composition wherein one phase contains physiologically acceptable strontium ion and the second phase contains physiologically acceptable fluoride ion. The two phases are mixed when used.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: February 5, 1991
    Inventor: Rudi D. Neirinckx
  • Patent number: 4990328
    Abstract: Disclosed are oral compositions containing phosphocitrate to provide improved anticalculus activity.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: February 5, 1991
    Assignee: The Procter & Gamble Company
    Inventor: Stephen F. McClanahan
  • Patent number: 4990329
    Abstract: The invention relates to an oral hygiene composition for treating or preventing anaerobe infections in humans and lower animals.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: February 5, 1991
    Assignee: The Procter & Gamble Company
    Inventor: Padmini Sampathkumar
  • Patent number: 4990330
    Abstract: Compositions for topical use having melanin synthesis-inhibiting activity comprising kojic acid or its esters and at least one compound selected from the group consisting of azelaic acid, tropolone, lipoic acid, sorbic acid, glucosamine, derivative of glucosamine, tunicamycin, deoxynojirimycin, glutathione, cystein, hydroquinone, derivative of hydroquinone, dehydroacetic acid, chelidonic acid and lipoamide. The compositions have excellent human skin-whitening effect and anti-suntan effect.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: February 5, 1991
    Assignee: Sansho Seiyaku Co., Ltd.
    Inventor: Yasuaki Oyama
  • Patent number: 4990331
    Abstract: A novel combination of five queen-produced mandibular gland substances which can be used for controlling worker retinue formation around or in place of a honey bee queen Apis mellifera L. is disclosed. The composition comprises: 9-keto-2(E)-decenoic acid, R-(-)- and S-(+)-9-hydroxy-2(E)-decenoic acid, methyl p-hydroxybenzoate, and 4-hydroxy-3-methoxyphenylethanol. Each component more or less is generally weakly active alone, but the blend of five compounds in a ratio corresponding to their occurrence in gland extracts imparts activity equivalent to queen mandibular extract at a level as low as 10.sup.-7 of that present in a queen. This blend of compounds initiates the retinue response, which includes the licking and antennating behaviour that signals the presence of a dominant reproductive queen, and thereby establishes and stabilizes the social fabric of the colony.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: February 5, 1991
    Inventors: Keith N. Slessor, Lori-Ann Kaminski, Gaylord G. S. King, John H. Borden, Mark L. Winston
  • Patent number: 4990332
    Abstract: The subject invention concerns a novel and useful insecticide with activity against insect pests of the order Lepidoptera. Pests in the order Lepidoptera do heavy damage to crops, e.g., cabbage and broccoli. The insecticide of the subject invention is a novel B. thuringiensis microbe referred to as B.t. PS85A1, or mutants thereof. Specifically disclosed is an asporogenous mutant designated B.t. PS85A1-168. The spores or crystals of B.t. PS85A1, or the crystals of B.t. PS85A1-168, are useful to control lepidopteran pests in various environments.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: February 5, 1991
    Assignee: Mycogen Corporation
    Inventors: Jewel Payne, George G. Soares, Henry W. Talbot, Theresa C. Olson
  • Patent number: 4990333
    Abstract: Factors isolated from omental extracts are used to promote bone healing, for example in fractures in mammals.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: February 5, 1991
    Assignees: Angio Medical Corporation, Trustees of Boston University
    Inventors: Joseph Lane, Nicholas Catsimpoolas, Robert S. Sinn
  • Patent number: 4990334
    Abstract: The present invention is a germicidal solution for sanitizing the human epidermis without irritation. The solution is a homogenous blend of glycerol, sodium hypochlorite, inert ingredients, soft water, scented oil, and isopropyl alchol, having a pH of 9.8 to about 10.1. The solution may be applied to a towelette and sealed in a hermetically sealed pouch for later use.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: February 5, 1991
    Inventors: Ronald M. Longino, Elliott A. Treadwell, Dwight C. Boykins
  • Patent number: 4990335
    Abstract: Method of making tablets for active ingredient delivery by compressing a mixture of active ingredient and granular, high viscosity, fully hydrolyzed polyvinyl alcohol or copolymer of vinyl alcohol with methyl acrylate or methyl methacrylate. By use of a crystalline, heat treated polymer, a tablet providing quick active ingredient release is obtained. By using an amorphous, non-heat treated polymer a tablet providing prolonged active ingredient release is obtained. By using blends of crystalline and amorphous polymers, tablets having a range of active ingredient release characteristics can be obtained. The granular, high viscosity, fully hydrolyzed polymers provide flowability, compressibility and processing versatility advantages over conventional tablet binders.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: February 5, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Linda R. Bateman, Robert C. Di Luccio, Clare A. Stewart, Jr., Donna L. Visioli, David P. Beach-Coffin
  • Patent number: 4990336
    Abstract: A multiphasic sustained release injectable delivery system is provided, as well as a method for treating humans and other mammals with that multiphasic sustained release system.
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: February 5, 1991
    Assignee: BioSearch, Inc.
    Inventors: Loui J. Silvestri, H. Ruth Pyle
  • Patent number: 4990337
    Abstract: Cyclosporins are useful immunosuppressive, anti-fungal and antiphlogistic agents which are relatively insoluble in water and aqueous fluids (including body fluids). They may be rendered more soluble or dispersible in aqueous media by first dissolving them in at least one mono- or di- glyceride of a C.sub.6 -C.sub.10 fatty acid, and the resulting solution can then easily be emulsified in water or an aqueous fluid.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: February 5, 1991
    Assignee: Sankyo Company Limited
    Inventors: Kozo Kurihara, Masaru Murano
  • Patent number: 4990338
    Abstract: An antimicrobial superabsorbent composition of a cross-linked hydrophilic sodium salt form of a partially neutralized acrylic acid-based polymer gel having covalently bonded thereto a silane. The composition can be in the form of flakes, strips, powders, filaments, fibers, or films, and may be applied to a substrate in the form of a coating.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: February 5, 1991
    Assignee: Dow Corning Corporation
    Inventors: Lynne M. B. Blank, Thomas D. Boyce
  • Patent number: 4990339
    Abstract: A water soluble dermal treatment film for dressing burns, surface wounds, cuts, scrapes, rashes or other dermal wound or lesion comprises a flexible sheet-like dressing made of polyalkyloxazoline. The dressing can have a structural layer and a pressure sensitive adhesive layer. The structural layer can be made of a polyalkyloxazoline composition formulated to obtain a flexible structural sheet. The pressure sensitive adhesive layer can be formulated to obtain pressure sensitive properties, maintaining the treatment film in position during its use. At such time the treatment film is to be removed, it can be removed without harsh scrubbing methods with a warm aqueous spray or soak. The sheet-like treatment means can be reinforced or impregnated with medicinal compositions to induce healing, reduce infection or stabilize the skin surface.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: February 5, 1991
    Assignee: H. B. Fuller Company
    Inventors: Steven L. Scholl, Eugene R. Simmons, William L. Bunnelle
  • Patent number: 4990340
    Abstract: A sustained release pharmaceutical preparation for percutaenous administration use mainly composed of a drug layer which is a layer made to contain drugs, to have no adhesiveness to the skin, but to be used in contact with the skin.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: February 5, 1991
    Assignee: Teijin Limited
    Inventors: Osafumi Hidaka, Tomoki Sakai
  • Patent number: 4990341
    Abstract: A solid controlled release, oral dosage form, the dosage form comprising a therapeutically effective amount of hydromorphone or a salt thereof in a matrix wherein the dissolution rate in vitro of the dosage form, when measured by the USP Paddle Method of 100 rpm in 900 ml aqueous buffer (pH between 1.6 and 7.2) at 37.degree. C. is between 12.5% and 42.5% (by weight) hydromorphone released after 1 hour, between 25% and 55% (by weight) hydromorphone released after 2 hours, between 45% and 75% (by weight) hydromorphone released after 4 hours and between 55% and 85% (by weight) hydromorphone released after 6 hours, the in vitro release rate being independent of pH between pH 1.6 and 7.2 and chosen such that the peak plasma level of hydromorphone obtained in vivo occurs between 2 and 4 hours after administration of the dosage form.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: February 5, 1991
    Assignee: Euroceltique, S.A.
    Inventors: Robert S. Goldie, Sandra T. A. Malkowska, Stewart T. Leslie, Ronald B. Miller
  • Patent number: 4990342
    Abstract: There is described a fungicidal composition which comprises a synergistic amount of(a) propyl 3-(dimethylamino)propylcarbamate or an acid addition salt thereof, and(b) a compound selected from the group consisting of zinc propylenebis(dithiocarbamate) polymer (propineb). zinc ethylenebis(dithiocarbamate) polymer (zineb). manganese ethylenebis(dithiocarbamate) polymer (maneb). zinc ammoniate ethylbenebis(dithiocarbamate)-poly(ethylenethiuramdisulphide) (metiram), tetrachloroisophthalonitrile (chlorothalonil) and copper(I)oxide, as well as carriers and/or other additives,the ratio of component A to compnent B being preferably from about 1:0.1-3.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: February 5, 1991
    Assignee: Schering Aktiengesellschaft
    Inventor: Thomas Wilde
  • Patent number: 4990343
    Abstract: The invention relates to a method of improving the properties of dough and the quality of bread by adding to the dough, dough ingredients, ingredient mixture or dough additives or additive mixture an enzyme preparation comprising hemicellulose and/or cellulose degrading enzymes and glucose oxidase, or sulphydryl oxidase and glucose oxidase, the enzyme preparation being preferably used in combination with lecithin. The enzyme preparation of the invention has an advantageous effect on the processability of the dough and the properties of the final bakery product. The combination of the enzyme preparation of the invention and lecithin can advantageously replace bromate conventionally used as a baking additive.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: February 5, 1991
    Assignee: Cultor Ltd.
    Inventors: Sampsa Haarasilta, Timo Pullinen, Seppo Vaisanen, Ina Tammersalo-Karsten
  • Patent number: 4990344
    Abstract: This invention concerns a process for preparing soluble rice protein concentrate with reduced levels of manganese, aluminum, selenium and phytic acid and improved digestibility from rice raw material comprising:digesting the raw material reduced in particle size to permit efficient enzyme action in an aqueous medium with an alpha-amylase enzyme at an operable pH and temperature for a period of time sufficient to solubilize a substantial portion of the rice starch and form a liquid slurry;heating the rice starch slurry at 105.degree. C. to 130.degree. C. for 30 to 60 seconds;separating the high protein rice flour from the rice syrup;treating a slurry of the high protein rice flour with a protease enzyme at an operable pH and temperature in an amount and for a period of time to solubilize the rice protein:clarifying the protease treated slurry to provide a soluble rice protein concentrate with reduced manganese, aluminum, selenium and phytic acid and improved digestibility.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: February 5, 1991
    Assignee: Bristol-Myers Company
    Inventors: John R. Euber, Gabor Puski, Grant H. Hartman, Jr.
  • Patent number: 4990345
    Abstract: A container for the storing and the direct consumption of edible contents therefrom. The container comprises a substantially cylindrically shaped container defined by an upstanding sidewall and an upper lid and a substantially parallel lower closure. The container also comprises a cover removably mounted above the upper lid to define a space between the upper lid and the cover. A utensil is located within the space for consuming the edible contents within the container. The container further comprises means between the upper lid and the cover for emitting a fragrance upon the separation of the cover from the upper lid. One of the lids and the sidewall thereadjacent is constricted to a reduced size for being inserted into the opposite end of another container for stacking purposes. The package is tamper evident with its upper lid coupled with respect to the sidewall so as to preclude littering. Lastly, also disclosed are methods of fabricating, filling and using such containers.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: February 5, 1991
    Inventor: John D. Webb
  • Patent number: 4990346
    Abstract: The height position of the rake gear rotating in a lauter tub for the production of beer is automatically controlled in accordance with the flow rate or the differential pressure. The control is effected in such a way that when there is a drop in the flow rate or an increase in the differential pressure, the rake gear is moved to a lower position, whereas when there is an increase in the flow rate or a drop in the differential pressure, it is moved to a higher position. In addition, the rotational speed of the rake gear can be increased or reduced at the same time as it is raised and lowered.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: February 5, 1991
    Assignee: Anton Steinecker Maschinenfabrik GmbH
    Inventors: Kurt Strippler, Klaus Wasmuht, Wolfgang Maitner
  • Patent number: 4990347
    Abstract: A process is provided for improving the reliability of sterilization of canned viscous food products by ensuring the proper amount and rate of rotation of cans during heat processing. Improvement in controlling the lethality of microorganisms can be accomplished. The method involves intervallically monitoring the rotation of the canned food in the processing equipment and utilizing the obtained rotation information to correct processing conditions to ensure commercial sterility.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: February 5, 1991
    Assignee: The Pillsbury Co.
    Inventors: Glenn O. Rasmussen, Enrique Rotstein, Kenneth J. Valentas, Shahed Zaman, Israel Saguy
  • Patent number: 4990348
    Abstract: Half products expandable or puffable by microwave or convection heat energy are prepared by (a) preparing a starch-containing material having a moisture content of not more than about 25%, (b) extruding the moisture-tempered material at a temperature of about 80.degree. to 110.degree. C. without causing expansion thereby producing a hot melt in a rope or piece form, and (c) cooling the extrudate without substantially lowering the moisture content for a time necessary to harden up. The half-products contain not more than about 25% of moisture in a glass-like rope or piece form and are shelf stable without preservatives. Substantial savings can be achieved in manufacture, storage, shipping, and handling because of the low processing temperature and the storage stability of the dense and hard products.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: February 5, 1991
    Inventors: Winston A. Spratt, David Paton, Gordon E. Timbers
  • Patent number: 4990349
    Abstract: A process for preparing a microwave cooked pasta product is disclosed. The process comprises the steps of (a) combining flour, egg whites, water, and optionally whole eggs, and a dibasic or tribasic organic acid derivative such as a tricarboxylic acid ester derivative, to form a paste, (b) drying the paste to produce pasta at drying temperatures of 100.degree. to 130.degree. F., (c) optionally soaking the pasta in hot or cold temperature liquid for a period of time sufficient to at least partially hydrate the paste, (d) heating the pasta for a period of time sufficient to cook the pasta, e.g. about 1 to 2 minutes. A preferred acid derivative is triethyl citrate. The heating can be achieved by exposure to microwave radiation. The cooked pasta is characterized by a starch loss upon cooking of less than about 8% by weight, based on uncooked pasta weight, and by texture superior to that obtained without the dibasic or tribasic organic acid derivative.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: February 5, 1991
    Assignee: Borden, Inc.
    Inventors: Dhyaneshwar B. Chawan, Carleton G. Merritt, Wiley W. Hargrove
  • Patent number: 4990350
    Abstract: The invention comtemplates a process for the removal of a portion of the alcohol from a distilled spirit without destroying the organoleptic properties of the spirit. The process comprises passing a barrel strength feed stream through a permeable membrane at high pressures, splitting the feed into permeate and retentate components. The entire process occurs in one pass through the permeator system.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: February 5, 1991
    Assignee: Joseph E. Seagrams and Sons, Inc.
    Inventor: Thomas Rohmann
  • Patent number: 4990351
    Abstract: A method are disclosed for treating fresh fruit to prevent and retard the growth of fungus. The techniques of the invention include simultaneously scrubbing the fresh fruit while drenching with a falling liquid containing a fungicide. Large volumes of liquid are used and the liquid can be recycled. The liquid also removes dirt and debris and, while containing a rather small amount of fungicide, such amount is present in a concentration sufficient to apply a coating to the fruit at the end of the scrubbing step given proper pH control. The pH of the solution is controlled. During the scrubbing step, the fruit is continuously rotated to provide even fungicidal deposit.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: February 5, 1991
    Assignee: Sunkist Growers, Inc.
    Inventors: Charles R. Orman, Paul E. Johnson
  • Patent number: 4990352
    Abstract: A beverage is prepared employing a package containing at least one beverage ingredient, e.g. roast and ground coffee. The package (10;200) is located at a brewing station, the package is pierced by a tool (49;248) to form an outlet opening (38;202) in the package, an aqueous medium, e.g. hot water, is introduced into the package, the aqueous medium is allowed to commingle with the beverage ingredient, and the beverage so formed is collected through the outlet formed in the package. The piercing tool is employed both to form the outlet opening, and to fold the material (117;204) surrounding the opening out of the path of the beverage which subsequently emerges through the outlet opening.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: February 5, 1991
    Assignee: General Foods Limited
    Inventors: Alec T. Newman, Andrew C. Bentley, Christine A. King, Alistair J. MacMahon, Robert W. Tansley, Andrew R. Gibbs
  • Patent number: 4990353
    Abstract: In a method and apparatus for washing or peeling tuberous products including providing a bed of rotatable driven brushes in a container, supplying liquid into the container such that the undersides of the brushes extend into the liquid, disposing the tuberous products onto the brushes at one end of the bed and rotating the brushes to transport the tuberous products to the other end of the bed while cleaning the tuberous products, the improvement comprising contacting the tuberous products above the bed and along the length of the bed to slow down the transport speed of the tuberous products without decreasing the rotational speed of the brushes. The step of contacting comprises providing a plurality of freely pivotable flaps, brushes, grinding rolls, a brush plate an endless belt with cleats or the like above the brushes, with the lower ends thereof spaced apart from the tops of the brushes.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: February 5, 1991
    Assignee: Goudsche Machinefabriek B.V.
    Inventor: Peter W. C. van der Schoot