Patents Examined by E. Suzanne Parr
  • Novel silver compositions
    Patent number: 4090009
    Abstract: Compositions useful for making electrical conductor patterns on a nonconductive substrate, the compositions comprising finely divided Pd/Ag and inorganic binder. The binder is free of bismuth oxide to reduce staining at conductor/resistor interfaces, and comprises certain proportions of glass, copper oxide, and pyrochlore-related oxide (lead ruthenate and/or copper bismuth ruthenate); lead oxide is optional. Despite the absence of bismuth oxide, aged adhesion is good, as is solder acceptance.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: May 16, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Samuel Jacob Horowitz
  • Monolithic ceramic capacitors
    Patent number: 4089813
    Abstract: Base metal electrodes are used in ceramic capacitors with a dielectric material comprising barium titanate, barium oxide, magnesium ortho-titanate, calcium titantate, and barium, strontium or calcium zirconate.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: May 16, 1978
    Assignee: ITT Industries, Incorporated
    Inventor: John Henry Alexander
  • Demulsification of surfactant-petroleum-water flood emulsions
    Patent number: 4089803
    Abstract: This invention relates to the demulsification of surfactant petroleum water flood emulsions which comprises treating such emulsions with a demulsifier in conjunction with an amine, preferably a polyalkylenepolyamine.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: May 16, 1978
    Assignee: Petrolite Corporation
    Inventor: Donald U. Bessler
  • Current-conducting film for electric resistance heaters
    Patent number: 4088609
    Abstract: A current-conducting film for electric resistance heaters, consisting of tin dioxide, antimony and boron which are used in the following ratios in percent by weight: tin dioxide 78.0-96.8; antimony, 3.0-20.0 boron, 0.2-2.0. The current conducting film exhibits high thermal stability (up to 900.degree. C. in air), critical specific input of 60 W/cm.sup.2 with strong adhesion to a support and good reproducibility of electrical parameters and physical properties.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: May 9, 1978
    Inventors: Gennady P. Popov, Alexandr K. Mikhailidi, Konstantin A. Lavrentiev, Ivan G. Popov, Viktor V. Zhukov, Nikolai A. Sorokin
  • Antifoam compositions
    Patent number: 4087398
    Abstract: Liquid dispersions of the higher (C.sub.22-70) aliphatic ketones and higher (C.sub.22-70) aliphatic secondary alcohols are effective antifoaming agents when they are of fine particle size. The particle size should be at least sufficiently small that the dispersion does not substantially separate under normal storage conditions. The dispersed phase can be water or an organic liquid in which the dispersed phase is substantially insoluble. The dispersions are effective anti-foam agents for most industrial purposes, and are suitable for use in oil and latex paints.
    Type: Grant
    Filed: November 29, 1976
    Date of Patent: May 2, 1978
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Rudi Heyden, Adolf Asbeck, Michael Eckelt
  • Resistive element having voltage non-linearity and method of making same
    Patent number: 4086189
    Abstract: A non-linear resistive element which is formed by sintering a body of zinc oxide which includes cobalt, strontium, barium, yttrium and magnesium.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: April 25, 1978
    Assignee: Otowa Electric Company, Ltd.
    Inventors: Tetsuya Honda, Kiyoshi Yagi, Seiji Shibata, Kazuo Yamaguchi
  • Antifoam process for non-aqueous systems
    Patent number: 4082690
    Abstract: A method or process for reducing and/or preventing foam in non-aqueous systems such as crude oil and coking processes is disclosed. The method involves the use of a composition consisting essentially of (1) a polydimethylsiloxane fluid, (2) a particular siloxane resin, and (3) a hydrocarbon solvent.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: April 4, 1978
    Assignee: Dow Corning Corporation
    Inventor: Kenneth W. Farminer
  • Organo silicon/silica defoamer compositions
    Patent number: 4082691
    Abstract: A defoamer composition comprising a precipitated hydrophylic silica suspended in a water-immiscible inert liquid carrier, and reacted in situ with specific molar proportions of a trichloro-organosilane and a dichloro-organosilane, preferably in this respective order, to yield a stable hydrophobic silica suspension in an inert carrier, useful as a defoaming agent for aqueous systems, being effective at concentrations as low as 0.0005 percent. When one of said chloro-organosilanes contains an unsaturated bond, the composition may be further halogenated or sulfated.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: April 4, 1978
    Assignee: Witco Chemical Corporation
    Inventor: Paul Daniel Berger
  • Electrostatic coating of silica powders on incandescent bulbs
    Patent number: 4081709
    Abstract: An improved electrostatically deposited coating is obtained by controlling the particle size and resistivity of the silica powder.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: March 28, 1978
    Assignee: General Electric Company
    Inventors: Clifford B. Collins, William G. James
  • Non-linear resistor
    Patent number: 4077915
    Abstract: A non-linear resistor comprises a sintered body of a ceramic composition which comprises 99.94 to 80.0 mole % of zinc oxide as ZnO, 0.02 to 10.0 mole % of the specific rare earth oxide selected from the group consisting of oxides of cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium as R.sub.2 O.sub.3, and 0.04 to 10 mole % of manganese oxide as MnO.
    Type: Grant
    Filed: September 2, 1976
    Date of Patent: March 7, 1978
    Assignee: TDK Electronics Co., Ltd.
    Inventors: Masatada Yodogawa, Susumu Miyabayashi, Yoshinari Yamashita, Takashi Yamamoto, Kohji Hayashi, Hisayoshi Ueoka
  • Composition and method for electrifying a gaseous atmosphere
    Patent number: 4077914
    Abstract: A process for imparting a positive electrical charge to a gaseous stream comprises contacting the stream with an aqueous solution comprising about 500-3000 ppm of a composition consisting essentially of borax and a surfactant. In the composition, borax and the surfactant are present in a weight ratio of borax to surfactant of about 1.2:1 to about 15:1. The process and composition are useful in the control of static electricity.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: March 7, 1978
    Assignee: Lester Laboratories, Inc.
    Inventors: John P. Peters, Larry H. McAmish
  • Self-dispersible antifoam compositions
    Patent number: 4076648
    Abstract: Self-dispersible, non-aqueous antifoam compositions comprising a lipophilic nonionic surface active agent homogeneously dispersed in a non-emulsified diorganosiloxane antifoam agent.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: February 28, 1978
    Assignee: Union Carbide Corporation
    Inventor: Meyer Robert Rosen
  • Elastic resistor compositions containing metallic-conductive particles and conductive lubricant particles
    Patent number: 4076652
    Abstract: Elastic resistor compositions comprising metallic-conductive particles and solid conductive lubricant particles codistributed in a matrix of a curable, elastomer-forming polymer and the cured compositions formed therefrom. Elastic resistors made from said compositions are also disclosed.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: February 28, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James Barry Ganci, Sebastian V. R. Mastrangelo
  • Orthopedic cast construction
    Patent number: 4076019
    Abstract: An improved orthopedic cast construction is disclosed. It is intended for application to broken bones, sprains, etc. The improved construction utilizes an elastic sleeve for those instances where the cast is placed on a limb, a second layer of spooled felting material which serves as a buffer against the elastic sleeve, and a third layer formed of a plaster bandage which is applied in multiple wraps soaked in water for the purpose of hardening into a supportive cast. The improvement comprises a felted layer of polyester or cotton fibers with ground silica-gel to adsorb perspiration from the body to keep the cast dry after installation and draws water out of the plaster media to enhance its drying. This protects and extends the life of the cast. It improves comfort to the patient.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: February 28, 1978
    Inventor: Bernard S. Sain
  • Topical device for administering tretinoin
    Patent number: 4073291
    Abstract: Tretinoin is incorporated in the adhesive mass of a dermatologically acceptable pressure-sensitive adhesive tape for the localized topical treatment of such skin conditions as acne and warts.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: February 14, 1978
    Assignee: Johnson & Johnson
    Inventors: John R. Marvel, James A. Mezick
  • Amine salt composition useful in inhibiting metal corrosion
    Patent number: 4072626
    Abstract: An amine salt is comprised of the reaction of pelargonic acid and dicyclohexylamine. The amine salt, dicyclohexylammonium pelargonate, is useful for inhibiting metal corrosion. A polyphosphate may be used in conjunction with the amine salt to obtain a synergistic corrosion inhibiting effect when a saline environment is encountered by the metal to be protected.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: February 7, 1978
    Assignee: A. F. Industries, Inc.
    Inventor: Donald C. Finney
  • Secondary-electron multiplier dynode
    Patent number: 4071474
    Abstract: A surface layer type secondary-electron multiplier consisting of a support and a secondary-electron emissive and electron-conductive high-polymer layer formed thereupon is disclosed. For forming the secondary-electron emission layer, paint consisting of an electron-conductive high-polymer dissolved or suspended in solvents is used. Alternatively, the support may consist of a nitrogen- or sulphur-containing electron-donor polymeric composition which may be molded or formed, and a charge-transfer complex conductive layer may be formed upon the support.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: January 31, 1978
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Yoshio Kishimoto
  • Heating panel
    Patent number: 4071737
    Abstract: An electrically conductive resinous composition of a copper flake, the surface of which has been cleaned by removing therefrom impurities and/or oxides, a resinous binder, an amount of copper flake in said resinous composition being from 25 to 70 percent, the impurities in said copper flake being less than 7000 ppm, said resinous composition being cured with a curative comprising a polyamide or an anhydride, or mixtures thereof; these compositions are suitable for uses such as heating panels or conformable heating shapes.
    Type: Grant
    Filed: September 23, 1976
    Date of Patent: January 31, 1978
    Assignee: Kennecott Copper Corporation
    Inventors: David W. Marshall, Jagdish Chandra Agarwal
  • Low fired conductive compositions
    Patent number: 4070517
    Abstract: Disclosed herein are powder compositions useful for making conductors, e.g., microcircuit conductors, end terminations for capacitors, electrodes for gas discharge display devices, etc. The compositions comprise inorganic powders dispersed in an inert vehicle and are printed and fired in the conventional manner on dielectric substrates. The inorganic powders comprise a mixture of nickel and/or aluminum or copper and boron. Glass powder and/or silicon powder may also be present.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: January 24, 1978
    Assignee: Beckman Instruments, Inc.
    Inventor: Casimir W. Kazmierowicz
  • Copper metallizations
    Patent number: 4070518
    Abstract: Copper-based metallizations, useful in the electronics art, comprising copper powder and certain alkali metal/lead borosilicate glass powders. The copper and glass may be dispersed in an inert liquid vehicle, printed on a substrate, and fired in a nitrogen atmosphere to produce conductor patterns. Also the resultant fired conductor patterns.
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: January 24, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Lewis Charles Hoffman