Patents by Inventor Efim Y. Tselniker

Efim Y. Tselniker 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).

  • Torch for gas-shield arc welding in deep narrow groove
    Patent number: 4495401
    Abstract: A torch for gas-shielded arc welding in a deep narrow groove comprises a current contact torch bit (1) with an electrode (2) and a nozzle for supplying the shielding gas to the welding zone, which communicates with a gas-feeding tube (4) and is provided with at least one row of horizontally arranged holes (5). The nozzle is a closed chamber (3) made as a symmetrical wedge whose sharp edge faces the electrode (2) and is in one plane with the axis thereof. The side walls and bottom of the chamber (3) feature at least one additional row of holes (6) whose axes lie in one plane approximately perpendicular to the walls (7) of the groove.The torch is designed primarily for welding of very thick workpieces.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: January 22, 1985
    Assignee: Nauchno-Proizvodstvennoe Obiedinenie Po Tekhnologii Mashinostroenia (NPO Tsniitmash)
    Inventors: Viktor V. Sidorov, Efim Y. Tselniker, Evgeny P. Sidorov, Leonid V. Sukhov, Vyacheslav F. Gorb, Gennady M. Bairakovsky