Resistance Or Induction Heating Patents (Class 427/587)
  • Patent number: 5482743
    Abstract: A process for producing an electrode plate for an electrolytic condenser. According to the process, a fixed or movable substrate is introduced into a chamber, and an oxidizing atmosphere and vaporized aluminum are also introduced into the chamber, under a pressure of 0.8 to 2.3 Pa in a deposit zone. A coating of grain agglomerates comprising a porous matrix of aluminum oxide containing metallic aluminum crystallites arranged randomly within the grains is deposited onto at least one surface of the substrate by condensation from the atmosphere at a rate between 0.03 and 0.2 micrometers per second. The coated substrate is then removed from the chamber and subjected to a chemical or electrochemical stabilization treatment.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: January 9, 1996
    Assignee: Satma
    Inventors: Francis Allegret, Mohamed Benmalek, Emmanuel Gariel
  • Patent number: 5474809
    Abstract: An evaporation method is described for the deposition of various materials that comprise a plurality of elements, such as metal alloys, ceramics and certain inorganic-metallic compounds. The method involves the evaporation of a material comprising a plurality of elements through a molten pool of another material. The material which is to be evaporated is placed in a suitable evaporation means under the material which is to be used to form the molten pool. By applying heat sufficient to melt both materials, the material to be evaporated is transported through the molten pool of the other material. The materials are selected so that the material to be evaporated is preferentially evaporated with respect to the other material. This method produces a vapor stream and condensates that have compositions which closely resemble the compositions of the material from which they were deposited. Further, the condensate may be collected using the method of this invention at high rates on the order of 0.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: December 12, 1995
    Assignee: General Electric Company
    Inventors: David W. Skelly, Melvin R. Jackson
  • Patent number: 5443861
    Abstract: A method for the production of polycrystalline diamond coatings, in which carbon from a carbon-containing gas mixture is precipitated onto a substrate heated to a preselected temperature, wherein the substrate is disposed inside a coolable detonation-combustion chamber of a high-velocity burner system or in a detonation gun and an atmosphere preventing oxidation of the surface of the substrate is created and this inert gas atmosphere is then replaced by a carbon-rich detonation mixture atmosphere. The method can also be implemented, if desired, with use of a high-velocity burner system without a combustion chamber and without a detonation gun.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: August 22, 1995
    Assignee: UTP Sshweissmaterial GmbH & Co. KG
    Inventor: Erwin D. Huhne
  • Patent number: 5431965
    Abstract: A coreless refractory fiber is made by introducing a filament (16) of a starting material into a chemical vapor deposition (CVD) enclosure (10) and then heating the end (21) of the filament by means of a contactless heating source. The source comprises a conducting coil connected to an AC source in the frequency range HF to UHF and with a linear or strip conducting element (110) connected to it such that the ends of the element is adjacent to the end (21) of the filament. The filament (16) is then withdrawn such that refractory material is continuously built up on its end from the chemical vapors in the enclosure to form a coreless retractory fiber. Whiskers of a coreless refractory material may be made by introducing fine particles of a catalyst material to form droplets and then feeding CVD gases to the droplets (30) to thereby promote crystal growth by precipitation from the supersaturated liquid.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: July 11, 1995
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britian and Northern Ireland
    Inventors: Michael G. Hocking, Paulette S. Sidky
  • Patent number: 5340604
    Abstract: This invention relates to a composite vapor deposition film composed of a plurality of elements and a method for manufacturing the same. A composite vapor deposition film is produced by having a composite of multi-component particles turned into a vapor to instantaneously evaporate the multi-component particles to an energy active vapor phase state. The composite vapor phase substance is solidified on a deposition substrate to form the vapor deposition film.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: August 23, 1994
    Inventor: Ogura Atsushi
  • Patent number: 5227202
    Abstract: In a plasma-enhanced chemical vapor deposition method, in order to achieve greater space for positioning workpieces to be coated simultaneously and essentially identically on all sides, the workpiece are positioned at a distance from one electrode on the basis of a coating rate gradient.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: July 13, 1993
    Assignee: Balzers Aktiengesellschaft
    Inventors: Francis Thiebaud, Heinrich Zimmermann
  • Patent number: 5225378
    Abstract: Phosphor-doped silicon films are simultaneously formed on semiconductor wafers, respectively. The semiconductor wafers are contained in a reaction tube whose interior temperature is controlled to 500.degree. C. Si.sub.2 H.sub.6 and PH.sub.3 are introduced into the reaction tube. PH.sub.3 is preheated to 400.degree. C. in a gas activating unit before being introduced into the reaction tube. By virtue of the preheating, the thermal decomposition of PH.sub.3 carried out in the reaction tube is accelerated.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: July 6, 1993
    Assignee: Tokyo Electron Limited
    Inventor: Harunori Ushikawa
  • Patent number: 5188863
    Abstract: A method for making optical recording media in which the optically readable information is embossed therein by means of an information master recording which is directly usable as a stamper.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: February 23, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Martinus J. M. de Graaf, Michael G. Fickes, George H. Johnson, Howard E. Simmons, III
  • Patent number: 5186973
    Abstract: A method for depositing a thick, adherent and coherent polycrystalline diamond (PCD) film onto a metallic substrate using a deposition rate of no greater than 0.4 .mu.m per hour. The resulting PCD Film has a smooth surface finish, enhanced crystal orientation in comparision to industrial grade diamond powder particularly in the (220) and (400) directions, and excellent electrical and thermal properties. The method enables one to deposit PCD films having a thickness of at least 12 microns for applications on flat as well as curved substrates having wide use in the electronics industry. Thick PCD films of this invention have been found to be ideal for dissipating heat from radio frequency (RF) and microwave (MW) devices.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: February 16, 1993
    Assignee: Diamonex, Incorporated
    Inventors: Diwakar Garg, Wilman Tsai, Fred M. Kimock, Robert L. Iampietro, Paul N. Dyer
  • Patent number: 5164222
    Abstract: A method for depositing a layer of additional material onto an electrically conductive thin layer structure preferably by means of the thermally induced reason of a compound in the vapor state, in which the thin structure is heated by an electric current passed through it. The method is especially suitable for reinforcing metallic conductor structures which have been made on a substrate by a direct-writing-laser chemical vapor deposition method, for example, fine tungsten wires.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: November 17, 1992
    Assignee: Mas-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Oliver Gottsleben, Michael Stuke