Patents Represented by Attorney Gerhard H. Fuchs

Find this attorney in the Justia Lawyer Directory

  • Dual-pane thermal window with liquid crystal shade
    Patent number: 5197242
    Abstract: A dual-pane thermal window unit comprises two non-intersecting or, preferably, substantially parallel, spaced window panes, mounted in a window frame, a first of the panes having affixed thereto a first wall of an electro-optical liquid crystal cell providing a selected light transmittance, and a second of said panes delimiting, with a second wall of said cell, a space providing a thermal break. Each of the first and second walls comprises an electrically conductive film composed of plastic and having sufficient supporting strength to maintain the structural integrity of the cell. The window is light weight, economical to manufacture and efficient and reliable in operation.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: March 30, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt, Gerhard H. Fuchs
  • Fluoropolymer blend anti-reflection coatings and coated articles
    Patent number: 5198267
    Abstract: Solid bodies having a reflective surface are provided with an anti-reflection coating of a fluoropolymer blends of (1) a terpolymer composition derived from (a) perfluoroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) hydroxyl-containing acrylate or methacrylate; and (2) an amorphous fluoropolymer.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: March 30, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Shaul M. Aharoni, Ajay Nahata, James T. Yardley
  • Process for coating silica spheres
    Patent number: 5196267
    Abstract: Silica microspheres formed by hydrolysis of a silica precursor having a mean diameter in the range of about 0.1 to 10 .mu.m are provided with a thin surface layer, often a monolayer, of a metal to provide the appearance of a solid particle of the metal as its oxide. The microspheres are contacted with an aqueous or alcoholic solution of a metal compound to deposit the surface layer.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: March 23, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Timothy J. Barder, Philip D. DuBois
  • Mixed-metal oxide absorbent for carbon dioxide and water removal
    Patent number: 5186727
    Abstract: Mixed-metal oxide absorbents having superior CO.sub.2 and water removal capacity and superior regenerability are prepared from novel mixed-metal carbonate precursors or from mixed-metal oxides derived from those precursors. The precursors are prepared from a salt of silver and the salt of a second metal. The second metal may be selected from the group consisting of magnesium, iron, cobalt, nickel, zinc, and other metals for which the metal carbonate to metal oxide reaction occurs at a temperature of not greater than about 400.degree. C. The precursors have an unique x-ray diffraction pattern characteristic of the silver carbonate pattern rather than of the physical mixture of the silver carbonate and the carbonate of the second metal.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: February 16, 1993
    Assignee: Allied-Signal Inc.
    Inventor: Chin-Hsiung Chang
  • Electro-optical materials and light modulator devices containing same
    Patent number: 5186865
    Abstract: Azo-type optically active compounds and polymers are provided based on compounds of the general structure[substituted aryl]--N.dbd.N--[substituted aryl]wherein aryl substituents are introduced which hinder or prohibit rotation around the single bonds of the --N.dbd.-- central moiety (as well as around certain other single bonds), to provide "planarized" structures having improved optically active properties, especially electro-optically active properties. These compounds and polymers find use in optically active waveguides.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: February 16, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Chengjiu Wu, Ajay Nahata, Michael J. McFarland, Keith Horn, James T. Yardley
  • Sinter reactive lanthanum chromite and process for making it
    Patent number: 5185301
    Abstract: A sinter-reactive lanthanum chromite powder is prepared from the lanthanum chromite precursor LaCr.sub.1-x M.sub.x O.sub.3 (Adsorbate). The powder is crystalline, has the formula LaCr.sub.1-x M.sub.x O.sub.3, where M is magnesium or calcium and x ranges from about 0.03 to 0.3, and sinters to densities higher than about 95% of theoretical density at temperature as low as 1600.degree. C. in inert or reducing atmospheres. Sintering to such high density at temperatures in the vicinity of 1600.degree. C. makes the powder particularly suited for use as interconnect material for solid oxide fuel cells.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: February 9, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Beili Li, Stephen Haig, Jean Yamanis
  • Photodefinable interlevel dielectrics
    Patent number: 5185210
    Abstract: A predetermined pattern of a dielectric polymer is formed on a substrate from a mixture of prepolymers which are the ethers of the oligomeric condensation product of (a) dihydric phenol and formaldehyde and (b) a dialdehyde and 3 to 4 moles of a phenol.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: February 9, 1993
    Assignee: Allied-Signal Inc.
    Inventor: Joseph J. Zupancic
  • Photodefinable interlevel dielectrics
    Patent number: 5185209
    Abstract: A predetermined pattern of a dielectric polymer is formed on a substrate from a prepolymer which is an ether of the oligomeric condensation product of a dihydric phenol and formaldehyde having the formula ##STR1##
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: February 9, 1993
    Assignee: Allied-Signal Inc.
    Inventor: Joseph J. Zupancic
  • Fluoropolymers and fluoropolymer coatings
    Patent number: 5183839
    Abstract: Copolymer compositions derived from (a) perfluroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) a hydroxyl-containing acrylate or methacrylate, in combination, can be cross-linked through internal esterification or anhydride formation. These product combine properties typical of fluorine-containing polymers with processability, including processability from solution.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: February 2, 1993
    Assignee: Allied-Signal Inc.
    Inventor: Shaul M. Aharoni
  • Strength enhancement of rapidly solidified aluminum-lithium through double aging
    Patent number: 5178695
    Abstract: A component consolidated from a rapidly solidified aluminum-lithium alloy containing copper, magnesium and zirconium is subjected to a preliminary aging treatment at a temperature of about 400.degree. C. to 500.degree. C. for a time period of about 0.5 to 10 hours; quenched in a fluid bath; and subjected to a final aging treatment at a temperature of about 100.degree. C. to 250.degree. C. for a time period ranging up to about 40 hours. The component exhibits increased strength and elongation, and is especially suited for use in lightweight structural parts for land vehicles and aerospace applications.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: January 12, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Jerry C. LaSalle, V. R. V. Ramanan, David J. Skinner
  • Polymeric anti-reflection coatings and coated articles
    Patent number: 5178955
    Abstract: Solid bodies having a reflective surface are provided with an anti-reflection coating of a terpolymer composition derived from (a) perfluoroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) hydroxyl- containing acrylate or methacrylate.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: January 12, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Shaul M. Aharoni, Michael J. McFarland, Ajay Nahata, James T. Yardley
  • Polymeric nitrones having an acrylic backbone chain
    Patent number: 5176983
    Abstract: Homopolymers and copolymers with an acrylic backbone chain having pendant side-chains containing a nitrone functional group undergo change in refractive index upon exposure to actinic radiation. Waveguides are "written"in films containing such polymers by exposing predtermined areas to sufficient actinic radiation to change the refractive index.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: January 5, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Keith A. Horn, Christine L. Lau
  • Birefringent optical waveguides of aluminum garnet
    Patent number: 5175787
    Abstract: This invention provides birefringent optical waveguide structures of crystalline aluminum garnet of a high refractive index which are clad with crystalline aluminum garnet of a lower refractive index. Due to predetermined lattice mismatch between garnet substrate and cladding layer, strain is induced which causes a stress with resultant birefringence in the waveguide layer. When linearly polarized light enters such stressed waveguide in certain orientations, the linear polarization will be preserved by the stress-induced birefringence. These birefringent clad waveguides can be in the form of slabs, channels, ribs, or any of the typical optical waveguide structures. They are useful at high temperature.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: December 29, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Devlin M. Gualtieri, Janpu Hou, Robert C. Morris, Herman van de Vaart
  • Rapidly solidified superplastic aluminum-lithium alloys and process for making same
    Patent number: 5171374
    Abstract: A rapidly solidified aluminum base lithium containing alloy is subjected to at least one overaging treatment and a plurality of rolling passes. Upon completion of the process, the alloy is comprised of grains having an ultrafine grain size. A predominant number of the grains have grain boundaries pinned by the precipitation of Al.sub.3 Zr phase. The alloy has an elongation greater than 500% at temperature above about 500.degree. C. and a strain rate above about 4.times.10.sup.-2 /s.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: December 15, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Nack J. Kim, Eui W. Lee
  • Beneficiated lanthanum chromite for low temperature firing
    Patent number: 5169811
    Abstract: A lanthanum chromite ceramic powder mixture that consists essentially of 1 mol of LaCr.sub.1-x M.sub.x O.sub.3, where M is a divalent metal selected from the group consisting of magnesium, calcium and mixtures thereof and x ranges from 0.03 to 0.3; y mols of B.sub.2 O.sub.3, where y ranges from 0.005 to 0.04; and z mols of La.sub.2 O.sub.3, where the ratio z/y ranges from 1.1 to 3. The mixture is formed into powder compacts and sintered to near full density at temperatures as low as 1400.degree. C.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: December 8, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Ned E. Cipollini, Beili L. Wu, Stephen Haig, Jean Yamanis
  • Rapidly solidified high temperature aluminum base alloy rivets
    Patent number: 5167480
    Abstract: A rivet is formed from a friction-actuated extrustion. The extrusion is produced by a process that utilizes a comminuted rapidly solidified aluminum alloy ribbon as the in-feed for a continuous friction-actuated extruder. Gumming and flow problems are eliminated. The extruded product is devoid of surface blistering. The extrusion is converted into a rivet that has improved ambient and elevated temperature mechanical properties.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: December 1, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Paul S. Gilman, Michael S. Zedalis
  • Superconducting ceramics by sequential electrodeposition of metals, followed by oxidation
    Patent number: 5162295
    Abstract: The invention provides a method for forming deposits of superconducting ceramics by sequentially electrodepositing layers of metals, of a type and in proportion suitable for forming a superconducting ceramic, to form a precursor metal deposit, followed by oxidizing the precursor deposit to form a superconducting ceramic deposit. Optionally, the electroplating steps are conducted in such a manner that a patterned precursor deposit results, to obtain a patterned superconducting deposit after oxidation.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: November 10, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Mohammad Behi, MacRae Maxfield, Ray Baughman, Helmut Eckhardt, Zafar Igbal
  • Method and apparatus for charging and testing batteries
    Patent number: 5160880
    Abstract: An apparatus for charging and testing a rechargeable battery is adapted to determine certain conditions, including defect and characteristics, of the battery. The apparatus defects caused by sulfated cells, short circuited cells, and mismatched cells, and determines battery voltage, capacity and charge acceptance capability.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: November 3, 1992
    Assignee: Allied-Signal Inc.
    Inventor: Thirumalai G. Palanisamy
  • Rapidly solidified aluminum-germanium base brazing alloys and method for brazing
    Patent number: 5158621
    Abstract: A low melting (liquidus temperature<570.degree. C.) rapidly solidified brazing alloy consists essentially of about 14 to 52 weight percent germanium, 0 to 10 weight percent of at least one element selected from the group consisting of silicon, magnesium, bismuth, strontium, lithium, copper, calcium, zinc and tin, the balance being aluminum and incidental impurities. The alloy has the form of a foil and can be used to braze non-heat-treatable rapidly solidified Al-Fe-Si-V alloy foil, sheet plate and tubing to components such as deicing duct, overduct, radiator, heat exchanger, evaporator, honeycomb panel for elevated temperature applications.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: October 27, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Santosh K. Das, Chin-Fong Chang
  • Low temperature, high strength, nickel, base brazing alloys
    Patent number: 5158229
    Abstract: Brazing of metal parts employing a low temperature, high strength metal alloy is disclosed. The alloy has a composition consisting essentially of about 6.10 to 6.66 atom percent chromium, about 2.43 to 2.46 atom percent iron, about 10.06 to 25.10 atom percent boron, about 3.22 to 12.85 atom percent silicon and the balance essentially nickel and incidental impurities, the composition being such that the total of nickel, chromium and iron ranges from about 71.68 to 74.58 atom percent and the total of boron and silicon ranges from about 25.42 to 28.32 atom percent. Such an alloy is suitable for brazing .gamma.' superalloys and stainless steels at temperatures ranging from about 927.degree.-1010.degree. C. to provide strong, low cost joints.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: October 27, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Debasis Bose, Amitava Datta