Patents by Inventor Anatoly V. Razhev

Anatoly V. Razhev 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 hollow articles by deep drawing
    Patent number: 4470287
    Abstract: A press for manufacturing hollow articles by deep drawing comprising a high pressure vessel (1) accommodating a die (3) with a punch (4). A blank (14) is accommodated in an annular high pressure chamber (16) communicating with a high pressure chamber (19) of an intensifier (20). The press also comprises a device (27) for regulating pressure in the annular chamber to control pressure acting upon the peripheral portion of a blank in accordance with a preset law, an appliance (39) for setting pressure in the annular chamber is made in the form of a tracer whose profile is equidistant with the curve characterizing the alteration of pressure in the annular chamber (16).
    Type: Grant
    Filed: September 2, 1982
    Date of Patent: September 11, 1984
    Inventors: Evgeny A. Antonov, Anatoly S. Matveev, Nikolai I. Nikonov, Boris N. Leonov, Anatoly V. Razhev, Vyacheslav I. Prokofiev
  • Method of producing hollow articles by deep drawing and press for effecting same
    Patent number: 4357816
    Abstract: A press for manufacturing hollow articles by deep drawing comprising a high pressure vessel (1) accommodating a die (3) with a punch (4). A blank (14) is accommodated in an annular high pressure chamber (16) communicating with a high pressure chamber (19) of an intensifier (20). The press also comprises a device (27) for regulating pressure in the annular chamber to control pressure acting upon the peripheral portion of a blank in accordance with a preset law, an appliance (39) for setting pressure in the annular chamber is made in the form of a tracer whose profile is equidistant with the curve characterizing the alteration of pressure in the annular chamber (16).
    Type: Grant
    Filed: August 21, 1980
    Date of Patent: November 9, 1982
    Inventors: Evgeny A. Antonov, Anatoly S. Matveev, Nikolai I. Nikonov, Boris N. Leonov, Anatoly V. Razhev, Vyacheslav I. Prokofiev