Patents by Inventor Sarra Abramovna Gantman

Sarra Abramovna Gantman 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).

  • Method of producing thickened electrolyte for primary cell
    Patent number: 4038466
    Abstract: A method of producing a thickened electrolyte for a primary cell, which involves mixing, at about room temperature, aqueous solutions of calcium chloride, zinc chloride, and ammonium chloride with a tanning agent, such as chromium sulphate, and starch as a thickening agent, aging the resulting mixture until a thickened electrolyte with a compressive strength of 0.05-0.85 kg/cm.sup.2 is obtained and pressing said electrolyte through at least one drawhole at a rate of at least 0.05 m/sec, the resulting viscosity of the electrolyte being sufficient to apply a layer of the thickened electrolyte to the negative electrode of a primary cell.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: July 26, 1977
    Inventors: Leonid Lavrentievich Belyshev, Albert Vladimirovich Chuvpilo, Valentina Vladimirovna Trizno, Viktor Arsenievich Naumenko, Lidia Fedorovna Penkova, Veniamin Ivanovich Gorokhov, Evgenia Grigorievna Apirina, Sarra Abramovna Gantman