Patents by Inventor Pavel A. Lazov

Pavel A. Lazov 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).

  • Hermetically sealed dry accumulator
    Patent number: 5401596
    Abstract: The invention is related to hermetically sealed dry accumulators having significantly larger power output per units of mass in a proportionately smaller volume. The accumulator includes one electrode comprising copper, cadmium, zinc, nickel, or iron, and another electrode of lead dioxide. An immobilized electrolyte containing a silica gel and sulfuric acid is in contact with the electrodes. A method for producing a novel silica gel which is especially suited for use in the immobilized electrolyte is also described.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: March 28, 1995
    Inventors: Georgi T. Stoilov, Vladimir G. Stoilov, Boiko G. Stoilov, Christo T. Chervenkov, Pavel A. Lazov
  • Method for making silica gel wtih a large active surface area
    Patent number: 5376348
    Abstract: A method is described for making silica gel having a large active surface area suitable for use as an adsorbent-separator of gases and liquids in hermetically sealed acid accumulators and as a filler in the fabrication of rubber articles.The method produces silica gel having a large active surface area and, at the same time, a microgranular structure. The product is in the form of aggregates having a size which generally does not exceed 5 mm, so no additional grinding of the product is required. The silica gel exhibits a large pore volume.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: December 27, 1994
    Assignee: Kamina Ltd.
    Inventors: Georgi T. Stoilov, Vladimir G. Stoilov, Boiko G. Stoilov, Christo T. Chervenkov, Pavel A. Lazov
  • Method of making lead electrodes
    Patent number: 5332634
    Abstract: A method for making porous lead dioxide electrodes having a relatively large active surface area and long service life is disclosed. The electrodes employ a grid which is coated first with a thin layer of nickel and then with a thin layer of lead. A paste containing a halogenated lead compound is applied over the lead and successively reduced and oxidized to form an active mass of porous lead dioxide. The finished porous lead dioxide electrode is suitable for use in storage batteries.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: July 26, 1994
    Assignee: Kamina, Ltd.
    Inventors: Georgi T. Stoilov, Vladimir G. Stoilov, Boiko G. Stoilov, Christo T. Chervenkov, Pavel A. Lazov