Patents by Inventor Marin G. Beloev

Marin G. Beloev 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).

  • Device for the manual start-up of a plasma torch
    Patent number: 4370539
    Abstract: Device for the manual start-up of a plasmotron. The device has a spring biased plunger which constitutes an electrode which selectively bridges the anode and cathode of the plasmotron and creates an arc between the anode and cathode when it is released so as to be retracted by the spring. The device is provided with an automatic lock which secures the plunger in its outer, retracted position and must be released manually to prevent unintended operation of the start-up device.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: January 25, 1983
    Assignee: NPK za Kontrolno Zavarachni Raboti
    Inventors: Dimo T. Garlanov, Marin G. Beloev, Vladimir P. Hlebarov, Mariana V. Kolarova, Ivan V. Vangelov
  • Plasma torch for processing metals in the air and under water
    Patent number: 4369919
    Abstract: Plasma torch or plasmotron for processing metals in the air or under water. The plasma stream issuing from the torch is shielded by a conical spray of water issuing from the torch. The water spray is given a rotary or whirling motion, thereby increasing its effectiveness in shielding the plasma stream, and insuring outer water shielding of the plasma stream with its changing shape and movement in accordance with changes in the medium wherein the processing is carried out.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: January 25, 1983
    Assignee: Npk za Kontrolno Zavarachni Raboti
    Inventors: Marin G. Beloev, Ivan V. Vangelov, Dimo T. Garlanov, Nikolay Y. Nikov, Ivan S. Savov, Vladimir P. Hlebarov