Patents by Inventor Konstantin L. Epishin

Konstantin L. Epishin 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).

  • Patent number: 4988480
    Abstract: The proposed invention is used for the manufacture from the obtained composite of cutting tools, hard alloy tooling, dies and other products. A method according to the invention involves preparing a mixture, compacting it, placing the mixture into a synthesis zone, igniting the mixture, with subsequent reaction of components of the mixture under combustion conditions. Then cure is carried out during a period ranging from about 0.1 seconds to about 0.5 hours, and the hot combustion products are compacted under pressure at an average pressure rise rate ranging from about 10 to about 2000 kgf/cm.sup.2.s, with subsequent cure of the compacted product under isobaric conditions to complete homogenization of the composite, with subsequent cooling thereof to obtain an end composite.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: January 29, 1991
    Inventors: Alexandr G. Merzhanov, Inna P. Borovinskaya, Alexandr N. Pitjulin, Viktor I. Ratnikov, Konstantin L. Epishin, Vadim L. Kvanin