Patents by Inventor Vladimir Alexandrovich Kachalov

Vladimir Alexandrovich Kachalov 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).

  • Radioactive source
    Patent number: 3974322
    Abstract: A radioactive layer in a radioactive source is sealed by the application of a sealing layer on the radioactive layer. The sealing layer can consist of a film of oxide of titanium, tin, zirconium, aluminum, or chromium. Preferably, the sealing layer is pure titanium dioxide. The radioactive layer is embedded in a finish enamel which, in turn, is on a priming enamel which surrounds a substrate.
    Type: Grant
    Filed: December 17, 1973
    Date of Patent: August 10, 1976
    Inventors: Lidia Emelianovna Drabkina, Jury Vatslavovich Mazurek, Dmitry Nikolaevich Myascedov, Viktor Pavlovich Prokhorov, Vladimir Alexandrovich Kachalov, David Moiscevich Ziv, deceased