Patents by Inventor Frederick V. Reven

Frederick V. Reven has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Coating to prevent the oxidation of electrodes during electric furnace steel making
    Patent number: 4588700
    Abstract: A coating is provided whih substantially lengthens the life of carbon and graphite electrodes used in electrical arc processes for the manufacture of ferrous metals. The coating forms a silica-phosphorus glass upon the electrodes.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: May 13, 1986
    Assignee: Nalco Chemical Company
    Inventor: Frederick V. Reven
  • Electrode coating and coated electrodes
    Patent number: 4544472
    Abstract: Coating for carbon electrodes used as anodes in the electrolysis of aluminum are disclosed. The coatings are aqueous and contain zinc chloride and powdered alumina.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: October 1, 1985
    Assignee: Nalco Chemical Company
    Inventor: Frederick V. Reven
  • Coating to prevent the oxidation of electrodes during electric furnace steel making
    Patent number: 4487804
    Abstract: A coating is provided which substantially lengthens the life of carbon and graphite electrodes used in electrical arc processes for the manufacture of ferrous metals. The coating forms a silica-phosphorus glass upon the electrodes.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: December 11, 1984
    Assignee: Nalco Chemical Company
    Inventor: Frederick V. Reven
  • Electrode coating and coated electrodes
    Patent number: 4477579
    Abstract: Coating for carbon electrodes used as anodes in the electrolysis of alumina to produce aluminum are disclosed. The coatings are aqueous and contain zinc chloride and powdered alumina.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: October 16, 1984
    Assignee: Nalco Chemical Company
    Inventor: Frederick V. Reven
  • Plastic ramming mix based on MGO
    Patent number: 4339542
    Abstract: A stable aqueous magnesium oxide refractory ramming mix using an alkali metal aluminate as a binder component is disclosed.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: July 13, 1982
    Assignee: Nalco Chemical Company
    Inventor: Frederick V. Reven
  • Refractory insulating veneer
    Patent number: 4307197
    Abstract: A tundish veneer composition comprising about 45-80 percent by weight of MgO, about 1-7 percent by weight of a refractory clay filler, about 1-15 percent by weight of a refractory glass wool fiber, about 3-10 percent of aqueous colloidal silica binder, and optionally, up to about 15 percent by weight of graphite, a foaming agent, or a dispersing agent.
    Type: Grant
    Filed: May 15, 1980
    Date of Patent: December 22, 1981
    Assignee: Nalco Chemical Company
    Inventors: John G. Daniel, David S. Kerr, Frederick V. Reven
  • High temperature refractory caulking composition
    Patent number: 4188229
    Abstract: A high temperature refractory caulking composition useful for sealing coke oven ascension pipes, Sinter furnaces and the like, comprising:______________________________________ Ingredients % by Weight ______________________________________ Alpha cristobalite 10- 30 Alpha-quartz 10- 50 Glassy polyphosphate having a deformation temperature of at least 500.degree. C. 10- 50 Bentonite clay 1- 10 Water An amount sufficient to form the above ingredients into a workable plastic mass. ______________________________________Optionally, amounts of Fluorspar and phosphoric acid may be added to the above.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: February 12, 1980
    Assignee: Nalco Chemical Company
    Inventor: Frederick V. Reven
  • Ingot mold for producing steel ingots
    Patent number: 4093778
    Abstract: An improved ingot mold for producing steel ingots is disclosed. The primary feature of this improved mold is an interior sidewall coating which is composed of an aqueous slurry of finely divided iron oxide and a lignosulfonate.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: June 6, 1978
    Assignee: Nalco Chemical Company
    Inventors: Frederick V. Reven, Charles W. Connors