Patents by Inventor Sergei A. Aizenberg

Sergei A. Aizenberg 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 manufacturing fibrous sheet material
    Patent number: 4217169
    Abstract: A distinguishing feature of the method lies in that the moist fibrous raw material is constituted by a suspension of a fibrous material with a fibre concentration of 5-30 wt. %; said suspension is heated before dispersion to 102.degree.-145.degree. under a pressure of 1.1-4.0 atm abs and fed in the form of a stream into a moulding chamber where pressure in the stream is sharply reduced to 0.8-1.0 atm abs in the course of 10.sup.-1 -10.sup.-3 seconds.
    Type: Grant
    Filed: November 1, 1978
    Date of Patent: August 12, 1980
    Inventors: Sergei V. Baburin, Vladimir A. Gorbushin, Alexandr P. Muraviev, Valery N. Nepein, Mikhail V. Frolov, Sergei A. Aizenberg, Evgeny H. Golovko, Alexandr F. Kamenev, Igor A. Sergeev