Patents by Inventor Pavel P. Sherstnev

Pavel P. Sherstnev 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 making powder from rubber and vulcanization products
    Patent number: 4607796
    Abstract: There is provided a method wherein the source material, rubber or vulcanization products is pulverized in an extruder wherein it is first compressed by a force of 0.2 to 0.7 MPa, then subjected simultaneously to a pressure ranging from 0.2 to 50 MPa and a shear force ranging from 0.03 to 5 N/mm.sup.2 while heating the material to a temperature ranging from 80.degree. to 250.degree. C. and then cooling said material to a temperature ranging from 15.degree. to 60.degree. C. The source materials can be used rubber goods, such as used tires and rejects of tire industry, footwear and industrial rubber production.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: August 26, 1986
    Assignee: Nauchno-Proizvodstvennoe Obiedinenie "Norplast"
    Inventors: Nikolai S. Enikolopov, Anatoly I. Nepomnyaschy, Lidia A. Filmakova, Valentin P. Krasnokutsky, Leonid I. Kurakin, Elena L. Akopian, Khristofor A. Markarian, Saibdzhan S. Negmatov, Suleiman K. Matkarimov, Yury A. Polivanov, Pavel P. Sherstnev, Vilitary B. Pavlov