Patents Examined by Nancy A. B. Swisher
  • Patent number: 4880618
    Abstract: Use of partially acetylated polyvinyl alcohol as a foaming agent in compositions in the form of aerosols.Use as a single or additional foaming agent in aqueous compositions for treating the skin or the hair, in the form of an aerosol foam, of partially acetylated polyvinyl alcohol containing at least some units of formulae (I) and (II) ##STR1## in which the units of formula (II) are present in proportions of greater than or equal to 3 mol % with respect to the totality of units in the polymer, this polymer possessing a viscosity at a concentration of 4% in water at 20.degree. C. of between 0.005 and 0.065 Pa.s.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: November 14, 1989
    Assignee: L'Oreal
    Inventors: Jean F. Grollier, Claude Dubief, Jean Mondet
  • Patent number: 4879183
    Abstract: Method for the manufacturing of blindaged glass that detains the trajectory of projectiles shot by firearms, characterized by the formation of a transparent and limpid composition constituted by a rigid zone of impact, an intermediate elastic and adhesive zone and a mixed third zone of protection and antilacerative.The rigid zone is composed of a laminated glass; the intermediate zone is composed of a plurality of layers of PVB or of polyurethane; the final mixed zone is composed by a glass sheet laminated with a thin polycarbonate layer which is covered by a transparent film of antiabrasive material. These blindage glass can be curved so as to be used in automobiles.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: November 7, 1989
    Inventor: Jose R. Mannheim
  • Patent number: 4877668
    Abstract: A pressure vessel sight glass, especially a tempered glass, is protected against the corrosive attack of normally alkaline, boiler feed water heated up to 300.degree. C., by providing the sight glass with a metallic oxide coating consisting essentially of SnO.sub.2, optionally combined with Cr.sub.2 O.sub.3. The coating is preferably applied as a sprayed solution of soluble salt convertible to the oxide.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: October 31, 1989
    Assignee: Schott Glaswerke
    Inventors: Paul Hinz, Helmut Dislich, Gerhard Weber
  • Patent number: 4877402
    Abstract: The disclosure relates to an artificial tooth crown composed of glass ceramics comprising crystallized calcium phosphate forming essentially apatite which is a main inorganic component of natural bones or teeth. The disclosure also relates to a method of producing the artificial tooth crown. The artificial tooth crown has superior dimensional accuracy since it is made by precision casting. The tooth crown can be securely adhered by a dental cement such as glass ionomer. Furthermore, the physical properties of the tooth crown are very similar to those of the natural teeth, and the wear caused by the biting motion between the tooth crown and its mating tooth does not differ from that caused by the biting motion between the natural teeth. Furthermore, the method does not differ from the conventional precision casting method.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: October 31, 1989
    Assignee: Kyocera Corporation
    Inventors: Masaya Hirabayashi, Iwao Noda
  • Patent number: 4877682
    Abstract: A continuous plastic laminate having improved stiffness at use temperature, comprising at least three melt coextruded sheets, each comprising a thermoplastic polymer or polymer blend, the outside sheets having a higher stiffness at use temperature than at least one inside sheet.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: October 31, 1989
    Assignee: Amoco Corporation
    Inventors: Marvin E. Sauers, Tyler F. Hartsing, Jr., Lee P. McMaster
  • Patent number: 4877662
    Abstract: A stabilizer selected from alkaline earth metal hydroxides, oxides and silicates and alkaline earth metal salts of higher fatty acids and an antioxidant are incorporated into a resin composition comprising an ethylene/vinyl alcohol copolymer and a propylene resin or a carbonyl group-containing thermoplastic resin. The stability of the resin composition is improved, and deterioration of the resin composition such as gelation, discoloration or reduction of the gas barrier property is prevented when this composition is heat-molded into a vessel.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: October 31, 1989
    Assignee: Toyo Seikan Kaisha, LTD.
    Inventors: Jinichi Yazaki, Akihiko Tamura
  • Patent number: 4877620
    Abstract: An ibuprofen-containing medicament which contains ibuprofen only in the (S)-(+)-form is disclosed. (S)-(+)-ibuprofen is more than twice as active as the racemate which has until now been used in the treatment of rheumatism. This permits reduction of the quantity of active ingredient and the size of the tablets or dragees.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: October 31, 1989
    Assignee: MEDICE Chem.- Pharm. Fabrik Putter GmbH & Co. KG
    Inventors: Dieter Loew, Otto Schuster, H. Lukas
  • Patent number: 4877666
    Abstract: A method for molding a substrate for use in supporting a magneto-optic recording structure includes the steps of providing a mold having a cavity that defines a plane and that is designed to form a thin disk-like magneto-optic substrate and mounting such mold with such plane horizontal and an axis of circular symmetry thereof substantially vertical. Hot fluid plastic flows from the center of such horizontal mold so that the fluid plastic flows relatively uniformly and radially outwardly from the center of the mold to minimize azimuthal variations in birefringence. Such flowing may be by injection or compression molding. Molding apparatus for manufacturing such magneto-optic substrate includes such mold and a support for positioning such mold with the plane thereof horizontal. Hot fluid plastic is injected to the center of such mold, as for example from the vertical axis of symmetry of such mold.
    Type: Grant
    Filed: August 11, 1987
    Date of Patent: October 31, 1989
    Assignee: Kerdix, Inc.
    Inventors: Boris J. Muchnik, Bernd F. Fischer
  • Patent number: 4876093
    Abstract: A dispenser is enclosed for delivering a beneficial agent to an environment of use. The dispenser comprising a wall that surrounds an internal space comprising carrier means for housing a beneficial agent, push means for pushing the carrier means from the dispenser and fragmenting means for fragmenting the carrier means as it is pushed from the dispenser.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: October 24, 1989
    Assignee: ALZA Corporation
    Inventors: Felix Theeuwes, Patrick S. L. Wong
  • Patent number: 4876126
    Abstract: A medical instrument comprises a substrate which has at least on its surface a reactive functional group covalently bonded with a water-soluble polymer or derivative thereof, whereby said surface has lubricity when wetted. The water-soluble polymer is a cellulosic polymer, maleic anhydride polymer, polyacrylamide or water-soluble nylon.The medical instrument is prepared by treating a substrate with a solution of a compound having a reactive functional group to form an undercoat so that the reactive functional group is present at least on the substrate surface, and then treating the substrate with a water-soluble polymer or derivative thereof to covalently bond the reactive functional group with the water-soluble polymer to thereby form a coat of the water-soluble polymer on the undercoat and optionally, contacting the treated substrate with water.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: October 24, 1989
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Naoto Takemura, Susumu Tanabe
  • Patent number: 4876091
    Abstract: A machine distributable gypsum-based pesticide pellet in which the gypsum is a solid formed by the bonding of plaster of paris and water which includes, prior to formation of the solid, by weight, no more than the minimum water required for substantial hydration of the plaster of paris. The pellet includes approximately five percent of a pesticide with the balance being plaster of paris. The pesticide, water and plaster of paris are generally uniformly mixed to provide a pellet which has a generally uniform release of the pesticide over its life. The pellet after setting has essentially no free water in that substantially all water is absorbed in the chemical reaction between the plaster of paris and water. The pellet has a maximum surface area of about 180 mm.sup.2, a maximum weight of about 0.3 gram, and has been compressed in the extrusion process to eliminate porosity and external and internal voids.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: October 24, 1989
    Inventor: John L. Clarke, Jr.
  • Patent number: 4874645
    Abstract: A finisher installed at the rear end of an automotive vehicle body. The finisher is comprised of two plate-like plastic parts which are joined at a parting plane with each other. The two plate-like plastic parts have respectively outer surfaces which are planarly aligned with each other to form a common flat outer surface. At least one of the two plate-like plastic parts is colored. The parting plane includes a horizontal flat narrower section which is generally perpendicular to the outer surface, and an inclined flat wider section contiguous to the horizontal section and inclined relative to the outer surface in such a manner as to form an acute angle between it and the outer surface defining the colored plastic part, thereby improving the strength and appearance of the finisher.
    Type: Grant
    Filed: April 28, 1987
    Date of Patent: October 17, 1989
    Assignees: Nissan Motor Co., Ltd., Ichikoh Industries Limited
    Inventors: Hiroyuki Fujiki, Yoshiharu Michiura, Kiyoshi Inoue
  • Patent number: 4874674
    Abstract: A metal-ceramic composite body is produced by fitting a protruding portion of a ceramic member into a concave portion of an intermediate member and joining the intermediate member to a metallic member. In this case, a difference between the inner diameter in the concave portion of the intermediate member and the outer diameter in the protruding portion of the ceramic member is not less than 0.2% of the outer diameter in the protruding portion when the protruding portion is pulled out from the concave portion.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: October 17, 1989
    Assignee: NGK Insulators, Ltd.
    Inventors: Isao Oda, Takao Soma
  • Patent number: 4874612
    Abstract: Multi-component implants which contain at least two shaped pieces containing active compound, wherein these shaped pieces contain biologically degradable copolymers of lactic acid and glycolic acid with a ratio by weight of lactide to glycolide of 90:10 to 60:40, and wherein there are at least two types of shaped pieces, A and B, type A containing copolymers with a content of lactide which is 5 to 15% by weight lower than in type B, release the active compound over a prolonged period, uniformly or with increasing amount released.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: October 17, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Patrick B. Deasy
  • Patent number: 4871543
    Abstract: The invention concerns an intravaginal device comprising a combination of 17 .beta.-estradiol and a supporting matrix for treating hypoestrogenic women. The device releases continuously 17 .beta.-estradiol at a rate of about 0.5 to about 25 .mu.g/24 h.The invention also comprises a method of preparing the device and a method of treating hypoestrogenic women by using the device.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: October 3, 1989
    Assignee: Aktiebolaget Leo
    Inventors: Inga M. Lindskog, Bengt C. H. Sjogren, Sven-Borje Andersson
  • Patent number: 4871617
    Abstract: A conductive member consisting of a first conductor of an alloy of titanium and tungsten and a second conductor of a refractory metal such as molybdenum is sintered to a conductive member of silicon of low resistivity to form a low resistance contact therewith.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: October 3, 1989
    Assignee: General Electric Company
    Inventors: Manjin J. Kim, Dale M. Brown, Simon S. Cohen, Bernard Gorowitz, Richard J. Saia
  • Patent number: 4869966
    Abstract: An encapsulated assemblage and a process for making an encapsulated assemblage comprising:(a) silanizing a substrate thereby forming a silanized substrate;(b) coating said silanized substrate with at least one thin extruded coherent film forming a coated substrate, said film consisting essentially of:(1) about 75 to about 90 parts by weight of a blend of:(a) about 65 to about 75 parts by weight of a selectively hydrogenated two-block polymer wherein one polymer block is designated by A and a second polmer block is designated by B such that prior to hydrogenation,(1) each A is a polymer block of a monovinyl or alpha alkyl monovinyl arene having a number average molecular weight in the range of from about 5,000 to about 75,000, said A blocks comprising from about 10 to about 40% by weight of the total block copolymer, and(2) each B is a polymer block having a number average molecular weight in the range of from about 10,000 to 150,000 and is formed by polymerizing a conjugated diene having from 4 to 10 carbon a
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: September 26, 1989
    Assignee: Shell Oil Company
    Inventors: Gay M. Samuelson, David J. St. Clair, Richard L. Danforth
  • Patent number: 4869973
    Abstract: In a thin film EL display device wherein a transparent electrode, a first dielectric layer, an EL emission layer, a second dielectric layer and a back electrode are laminated in order on a transluscent substrate, a 10 nm-200 nm thickness of thin film made of calcium sulfide or a mixture containing calcium sulfide which is formed by an electron beam vapor deposition method provided between the first dielectric layer and the EL emission layer and between the EL emission layer and the second dielectric layer, thereby obtaining a thin film EL display device which maintains a stable operation for a long period even when it is driven by A.C. pulses which are a symmetric with respect to the time relationship of the driving pulses (e.g.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: September 26, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masahiro Nishikawa, Takao Tohda, Jun Kuwata, Yosuke Fujita, Tomizo Matsuoka, Atsushi Abe
  • Patent number: 4869974
    Abstract: According to the invention there is now provided a protecting plate in compound design for use such as splinter screen, composite armour etc. Said plate comprises elements built of alternate lamellas of a hard material rich in hard constituents and a tough material with a superior metallugical bond between the lamellas. The hard material comprises particles such as carbides, nitrides, oxides and/or borides of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and/or Al in a matrix based on Fe, Co and/or Ni where the amount of hard constituents is 30-70 vol-% and the tough material essentially comprises Fe, Co and/or Ni base alloys, preferably steel.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: September 26, 1989
    Assignee: Sandvik AB
    Inventors: Rolf G. Oskarsson, Erik G. Eriksson
  • Patent number: 4867680
    Abstract: A dental impression package pre-loaded with dental impression material adapted for taking accurate impressions of a patient's teeth and/or gums by professional personnel is provided. The impression material used is flowable to a desired degree and has a viscosity of substantially one million centipoises. Packaging a pre-loaded dental impression tray is accomplished by first quickly immersing the loaded tray in a solution of natural latex for a few seconds and then quickly removing the coated product followed by quickly immersing it in a coagulating solution of acetic acid for a few seconds to stabilize the latex coating; withdrawing the stabilized coated product; drying it; and suitably packaging the product for storage and sale. If the impression material is of a light-curable nature, the packaging is of light-opaque nature.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: September 19, 1989
    Assignee: Dentsply Research & Development Corp.
    Inventors: Pamela H. Hare, Robert V. Hare, Paul D. Hammesfahr