Patents by Inventor Alexandr I. Gitelman

Alexandr I. Gitelman 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 for recovering breaker metal cord threads from tires
    Patent number: 5290380
    Abstract: A method involves heating metal cord threads and separating metal cord threads from rubber. Output is increased and power consumption of the process is lowered by preliminarily completely cutting through a tire in such a manner as to expose the ends of metal cord threads and by heating these threads to a temperature of complete thermooxidation destruction of rubber layers adjacent to these metal cord threads.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: March 1, 1994
    Assignee: Alexandr Isaakovich Gitelman
    Inventors: Alexandr I. Gitelman, Valery V. Kalinchak, Svetlana G. Orlovskaya
  • Method for recovering metal reinforcement from rubber tires
    Patent number: 5250131
    Abstract: A method for recovering metal reinforcement from rubber tires involves placing a tire having metal reinforcement into a high-frequency electromagnetic field, heating the tire and separating the reinforcement from rubber. Lowering of power requirements and enlargement of capabilities are achieved by clamping the tire between rolls and subsequent heating of a local portion of the tire to a temperature of pyrolysis of rubber layers nearest to the reinforcement to form a pyrolysis swelling. The tire is then drawn between the rolls.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: October 5, 1993
    Inventor: Alexandr I. Gitelman