Patents by Inventor Gleb Mamantov

Gleb Mamantov 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).

  • Passivated diamond film temperature sensing probe and measuring system employing same
    Patent number: 5839830
    Abstract: A high temperature sensing probe includes an optical fiber or rod having a distal end and a proximal end. The optical fiber or rod has a coating secured to the distal end thereof, wherein the coating is capable of producing a Raman spectrum when exposed to an exciting radiation source.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: November 24, 1998
    Assignee: Martin Marietta Energy Systems, Inc.
    Inventors: Jack P. Young, Gleb Mamantov
  • Low temperature molten salt compositions containing fluoropyrazolium salts
    Patent number: 5552241
    Abstract: Low temperature molten salt compositions comprised of a mixture of a metal halide, such as but not limited to aluminum trichloride, and a fluoropyrazolium salt, such as but not limited to 1,2-dimethyl-4-fluoropyrazolium chloride, which are resistant towards oxidation over a wide temperature gradient and are useful as electrolytes in electrochemical cells.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: September 3, 1996
    Assignee: Electrochemical Systems, Inc.
    Inventors: Gleb Mamantov, deceased, Josip Caja, Thanthrimudalige D. J. Dunstan
  • Process for preparing fluorine by electrolysis of calcium fluoride
    Patent number: 4802970
    Abstract: A process for producing fluorine from calcium fluoride in which calcium fluoride is dissolved in a molten salt electrolyte containing an alkali metal tetrafluoroborate and the melt is electrolyzed at a temperature below 400.degree. C.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: February 7, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gleb Mamantov
  • Sodium-tetravalent sulfur molten chloroaluminate cell
    Patent number: 4508795
    Abstract: A sodium-tetravalent sulfur molten chloroaluminate cell with a .beta."-alumina sodium ion conductor having a S-Al mole ratio of above about 0.15 in an acidic molten chloroaluminate cathode composition is disclosed. The cathode composition has an AlCl.sub.3 -NaCl mole percent ratio of above about 70-30 at theoretical full charge. The cell provides high energy densities at low temperatures and provides high energy densities and high power densities at moderate temperatures.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: April 2, 1985
    Assignee: University of Tennessee Research Corporation
    Inventor: Gleb Mamantov
  • Dehydration of aluminum chloride hexahydrate
    Patent number: 4493784
    Abstract: A method for dehydrating aluminum chloride hexahydrate which comprises contacting the hexahydrate with a melt consisting essentially of a chlorobasic mixture of aluminum chloride and alkali metal chloride and then treating the resulting mixture with HCl to form an AlCl.sub.3 /alkali metal chloride melt enriched in AlCl.sub.3. NaCl is a preferred alkali metal chloride.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: January 15, 1985
    Assignee: Atlantic Richfield Company
    Inventors: Gleb Mamantov, Charmaine B. Mamantov
  • Cathode for molten salt batteries
    Patent number: 4063005
    Abstract: A molten salt electrochemical system for battery applications comprises tetravalent sulfur as the active cathode material with a molten chloroaluminate solvent comprising a mixture of AlCl.sub.3 and MCl having a molar ratio of AlCl.sub.3 /MCl from greater than 50.0/50.0 to 80/20.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: December 13, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Gleb Mamantov, Roberto Marassi
  • Molten salt electrochemical systems for battery applications
    Patent number: 3966491
    Abstract: A molten salt electrochemical system for battery applications is provided mprising aluminum as the anode, positive oxidation states of either iodine or sulfur as the cathode, and a low-melting molten mixture of aluminum chloride and alkali chloride disposed between the anode and cathode and in contact with each.
    Type: Grant
    Filed: February 13, 1975
    Date of Patent: June 29, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Gleb Mamantov, Roberto Marassi, James Q. Chambers