Patents Examined by P. R. Schwartz
  • Coating for metallic substrates
    Patent number: 4689271
    Abstract: The present invention relates to metal substrates which are coated with electrically insulating layers whose electrical resistance has a low temperature dependence, the insulating layer on said metal substrates consisting essentially of a melted-on material containing 43-47% by weight of B.sub.2 O.sub.3, 29-33% by weight of CaO, 10-15% by weight of SiO.sub.2, 7-10% by weight of Al.sub.2 O.sub.3 and 1-2% by weight of MgO.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: August 25, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Joachim Schittenhelm, Werner Joseph, Otto Krist
  • Finger strips for copying machines
    Patent number: 4687696
    Abstract: Improvements in a finger strip for copying machines are proposed. The finger strip made of a heat-resistant resin is coated with a fluorinated polyether polymer to improve lubricity and antistickiness. High adhesion strength between the coating and the substrate and very thin coating help to eliminate the problems of poor separation and jamming of paper.
    Type: Grant
    Filed: July 29, 1985
    Date of Patent: August 18, 1987
    Assignee: NTN-Rulon Industries Co., Ltd.
    Inventor: Fuminori Satoji
  • Low reflectance transparent material having antisoiling properties
    Patent number: 4687707
    Abstract: A low reflectance transparent material having antisoiling properties, which comprises a transparent substrate and a multi-layer coating formed on the substrate, said coating comprising at least one thin layer of a condensation product containing a metal oxide, and a thin layer of a condensation product of a fluorine-containing silicon compound having a polyfluorinated carbon chain or a perfluorocarbon chain, formed thereon.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: August 18, 1987
    Assignee: Asahi Glass Company Ltd.
    Inventors: Masashi Matsuo, Nobuyuki Yamagishi, Makoto Noshiro, Yukio Jitsugiri, Keiichi Ohnishi
  • Cleaning web for fixing rolls on copy machines
    Patent number: 4686132
    Abstract: A cleaning web for fixing roll of copy machines, the cleaning web consisting of a fibrous base material containing 20 to 85 wt % of aromatic polyamide fibre and 80 to 15 wt % of polyester fibre and having seal portions and non-seal portions with an apparent density of 0.2 to 0.4 g/cm.sup.3 distributed substantially over the entire area thereof, the fibrous base material being impregnated with silicone oil.
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: August 11, 1987
    Assignee: Japan Vilene Co., Ltd.
    Inventors: Yoshiyuki Sumii, Soshichi Fukaya
  • Mat for absorbing oil and other liquids
    Patent number: 4684562
    Abstract: The present invention relates to an apparatus designed to catch drippings including three sheets, one formed from an absorbent, isotropically permeable material supported by a second sheet formed from an absorbent material for absorbing drippings. These two sheets further are supported by a third sheet that is liquid-resistant, one side of which is covered by a foil material, this foil-backed sheet further preventing liquid leakage. The three sheets are bonded together by a sealing ring, tape, or adhesive.
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: August 4, 1987
    Inventor: Robert Hartkemeyer
  • Construction material
    Patent number: 4680907
    Abstract: A building material for cement based facing such as stucco and brick facing. A thin layer of water impervious epoxy is applied to one side of a wallboard or plywood sheeting. Sand is imbedded in the epoxy in a manner to fully cover the epoxy. The sand surface provides a compatible bonding surface for stucco and mortar which are then applied in a conventional manner.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: July 21, 1987
    Inventor: Richard D. Williams
  • Shaped bodies of calcium silicate
    Patent number: 4681809
    Abstract: This invention provides a shaped body of calcium silicate of which the whole or the surface layer comprises a mixture of calcium silicate crystal and at least one inorganic compound selected from the group consisting of spodumene, petalite, eucryptite, lithium orthoclase, quartz glass, Vycor glass, cordierite, beryl, aluminum titanate and zirconium phosphate and a process for preparing the same.
    Type: Grant
    Filed: August 21, 1985
    Date of Patent: July 21, 1987
    Inventor: Tatsuo Kitano
  • Photographic printing paper support
    Patent number: 4678742
    Abstract: A photographic printing paper support is described, comprising a base paper having a polyolefin layer formed on both surfaces thereof, said support having provided on a back surface thereof a writing property providing layer composed of (a) inorganic pigment having an average particle diameter from 0.1 to 2.0 .mu.m and oil absorption degree of 100 cc/100 g or less, and (b) an acrylic emulsion having a glass transition point of from 20.degree. C. to 50.degree. C.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: July 7, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigehisa Tamagawa, Tetsuro Fuchizawa, Hisamasa Abe
  • Radiant heat reflective inflatable structure
    Patent number: 4671975
    Abstract: Radiant heat resistant fluid-distendable structure and methods for making same.
    Type: Grant
    Filed: February 4, 1983
    Date of Patent: June 9, 1987
    Assignee: The Garrett Corporation
    Inventor: Edward H. Smialowicz
  • Color printed record
    Patent number: 4666757
    Abstract: A printed record in color comprises a transparent sheet on which is jet-printed subtractive color inks in layers of different color. The inked surface of the transparent sheet is adhered to the surface of an opaque backing sheet, usually white in color, so that the backing sheet reflects ambient light back through the ink layers and the transparent sheet so as to provide a color image visable through the transparent sheet that is characterized by high color density and brightness.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: May 19, 1987
    Assignee: Howtek, Inc.
    Inventor: Richard R. Helinski
  • Microbubble-filled article such as a pressure-sensitive adhesive tape
    Patent number: 4666771
    Abstract: The invention primarily concerns a pressure-sensitive adhesive tape, the adhesive layer of which is filled with glass microbubbles and has a dark appearance by virtue of (1) the microbubbles are stained glass which preferably is dark, and (2) dispersed throughout the adhesive layer is a pigment or dye which preferably is dark. More broadly, the invention concerns any coherent article filled with stained-glass microbubbles. The glass of the microbubbles preferably has an ultraviolet window, permitting the article to be made by photopolymerizing a matrix filled with the microbubbles.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: May 19, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: George F. Vesley, Alan H. Paulson
  • Reduction in the adhesion to glass of thermoplastic, plasticized polyvinylbutyral molding compositions
    Patent number: 4663235
    Abstract: Reduction in the adhesion to glass of thermoplastic, plasticized polyvinylbutyral molding compositions, in particular sheeting, by the addition of a metal salt and/or metal chelate of an enolizable .beta.-diketone, or mixtures of these compounds, as an non-stick agent, preferably in amounts of 0.003 to 0.3% by weight, relative to the plasticized polyvinylbutyral. It is preferable to employ the non-stick agent in the form of a solution in the plasticizer. The use of the sheeting having an adhesion to glass reduced in accordance with the invention as a laminating layer for the production of glass laminates.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: May 5, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Kurt Fock, Hans D. Hermann, Klaus Fabian, Joachim Ebigt
  • Fired hollow ceramic spheroids
    Patent number: 4657810
    Abstract: A hollow, ceramic macrosphere or spheroid comprising a relatively smooth outer skin and cellular shell is produced in the 2-20 mm diameter range with specific gravities in the 0.2-1.2 range. The spheroids can be rendered inert to water and are stable at temperatures of 800.degree. to 1000.degree. C., depending on their composition. The porosity of the shell can be controlled through various additives and/or epoxy resin coating. The spheroids may be made from common clay and sodium silicate.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: April 14, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: David K. Douden
  • Cryogenic glass-to-metal seal
    Patent number: 4649085
    Abstract: A novel low temperature vacuum seal and method of making same for joining a nonmetallic element, such as an optical port, to a metallic element is described which comprises first and second thin metallic layers applied to the nonmetallic element to provide substantial adhesion and solderability to the nonmetallic element, and a third metallic layer applied to the metallic element to provide solderability to the metallic element, the nonmetallic and metallic elements being joined by a layer of low temperature solder interfacing their respective solder surfaces. A further thin metallic layer may be applied to the nonmetallic element to provide substantial wetability to the solderable second layer.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: March 10, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Mark O. Landram
  • Composite slab incorporating a sheet of marble or similar natural stone, for the formation of facings for building, interior decoration and the like
    Patent number: 4640850
    Abstract: A composite facing slab comprises a sheet of natural stone, such as marble, and a protective layer constituted by a sheet of transparent glass. The latter is fixed to the face of the stone sheet intended to remain visible with the interpositioning of an interlayer of transparent thermoplastics material which can adhere to both the sheets and fills the surface defects (pores, cavities, cracks and the like) of the stone sheet.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: February 3, 1987
    Assignees: Technomarmi Maiera S.p.A., Seifag S.r.l.
    Inventor: Giuseppe Marocco
  • Moisture sensor
    Patent number: 4632879
    Abstract: A moisture sensor comprising a substrate, a bottom electrode formed on said substrate, a moisture sensitive film formed on said bottom electrode and a moisture permeable electrode formed on said moisture sensitive film, said moisture sensitive film being formed by heat-treating polyvinyl alcohol, thereby exhibiting a moisture sensitive characteristic which has a linear relationship between the impedance and the relative humidity.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: December 30, 1986
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Junichi Tanaka, Hisatoshi Furubayashi, Masanori Watanabe, Masaya Hijikigawa
  • Double glass covering and process for its manufacture
    Patent number: 4632853
    Abstract: Double glass set of the type formed by an existing single glass set and a supplementary glass set with there between a spacer the sides of which are provided with an adhesive material that forms an airtight assembly between the spacer and glass sets, characterized in that the spacer is formed by a metallic profile (4-5-6-7), preferably in aluminium, which shows a rectangular section and the outside wall of which is provided with an L-shaped rib (16), the free flange of which is oriented towards the supplementary glass set (11), while the inside wall is prolonged past the side walls in order to form projections (21-22).
    Type: Grant
    Filed: December 7, 1983
    Date of Patent: December 30, 1986
    Assignee: Atlas Isolaties, personenvennootschap met beperkte aansprakelijkheid
    Inventor: Simone M. De Vrij
  • Embossing foils
    Patent number: 4631222
    Abstract: A hot embossing foil includes, besides a magnetic layer, a layer which has a structure producing a diffraction effect such as a hologram. The foil may also be provided with a signing layer which in the operational condition of the foil is at the exposed surface thereof to which writing can thus be applied, while nonetheless permitting detection of the diffraction-effect structure.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: December 23, 1986
    Assignee: Messrs. Leonhard Kurz GmbH & Co.
    Inventor: Helfried Sander
  • Embossing foils having a magnetic layer
    Patent number: 4631223
    Abstract: An embossing foil includes a layer which can be written upon, together with a magnetic layer for data storage purposes. Between the magnetic layer and the writing layer, the foil has a layer with a barrier effect to prevent the writing layer from being attacked by solvent contained in the magnetic layer. The foil may further comprise between the magnetic and writing layers, a structure producing an optical diffraction effect such as a hologram, with the writing surface and said structure being so arranged that nonetheless said structure can still be read, including by machine.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: December 23, 1986
    Assignee: Messrs. Leonhard Kurz GmbH & Co.
    Inventor: Helfried Sander
  • Embossed gypsum board
    Patent number: 4631097
    Abstract: Predecorated gypsum board having an embossed design extending into the paper-covered front face and a utilitarian embossing extending into the paper-covered back face, preferably formed by embossing a laterally extending crepe design in the back paper with longitudinally extending narrow relatively unembossed strips at spaced positions across the width of the paper.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: December 23, 1986
    Assignee: National Gypsum Company
    Inventor: Donald A. Kossuth