Patents by Inventor Nikolai Ivanovich Timofeev

Nikolai Ivanovich Timofeev 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 manufacture of seamless capillary thin-walled vacuum-tight pipes form palladium alloys
    Patent number: 4080224
    Abstract: A pipe billet is drawn and reduced by stages, each time decreasing the cross-sectional area of its walls by 60-80% and annealing it at 830.degree. .+-. 30.degree. C after each drawing stage. This procedure is continued until the wall thickness of the billet decreases to 0.24 - 0.30 mm; then the billet is again drawn and reduced by stages, each time decreasing the cross-sectional area of the produced pipe by 28 - 50% and annealing the pipe at 750.degree. .+-. 20.degree. C after each drawing stage.The method of manufacture of seamless pipes according to the invention allows making capillary thin-walled pipes from palladium-based alloys that will withstand a vacuum of 10.sup.-3 - 10.sup.-4 mm Hg and remain vacuum-tight after 1000 hr of operation in hydrogen-containing media.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: March 21, 1978
    Inventors: Viktor Alexeevich Goltsov, Ivan Filippovich Belyaev, Sergei Grigorievich Guschin, Nikolai Ivanovich Timofeev, Saule Khuryatbekovna Kurumchina
  • Palladium-based alloy
    Patent number: 4063937
    Abstract: An alloy consists of 42.0 - 96.85% by weight of palladium 2.0 - 40.0% by weight of silver, 1.0 - 12.0% by weight of indium, 0.05 - 2.0% by weight of yttrium, 0.1 - 4.0% by weight of at least one element selected from the group consisting of niobium, molybdenum, tantalum, tungsten.The alloy according to the invention exhibits high hydrogen permeability and strength properties which enable the operation of the alloy at elevated temperatures.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: December 20, 1977
    Inventors: Viktor Alexeevich Goltsov, Nikolai Ivanovich Timofeev, Sergei Grigorievich Guschin