Patents by Inventor Anna I. Levina

Anna I. Levina 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).

  • Spark trainer for welders
    Patent number: 4689021
    Abstract: A spark trainer for welders comprises a welding electrode simulator, an electric spark generator connected to the electrode simulator, a welding object simulation unit, a spark discharge being produced between said welding object simulation unit and the tip of the welding electrode simulator in order to simulate the welding arc, a unit for monitoring the position of the tip of the electrode simulator in relation to the simulated welding object, a welding process control unit having its input connected to the electrode simulator tip position monitoring unit, electric spark generator, and a helmet with earphones.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: August 25, 1987
    Assignee: Institute Problem Modelirovaniya v Energetike an UKR.SSR
    Inventors: Vsevolod V. Vasiliev, Sergei N. Danilyak, Anna I. Levina, Valery A. Nushko, Jury P. Roiko