Patents by Inventor Natan Mironovich Barshtak

Natan Mironovich Barshtak 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).

  • Throttle
    Patent number: 4023594
    Abstract: A throttle for use in hydraulic drives requiring low flow rate of liquid includes a stationary housing and a rotor located in said housing. In the housing on the side facing the rotor, provision is made for an insert which is mounted with a clearance with respect to the rotor and the clearance serves as a passage for liquid to pass.The insert is made of the material whose linear expansion factor is larger than that of the material the housing is made of.The insert changes its linear dimensions against the liquid temperature variation, the liquid flow rate remains uniformly constant or invariable with the liquid temperature change.
    Type: Grant
    Filed: August 6, 1975
    Date of Patent: May 17, 1977
    Inventors: Arnold Yakovlevich Kats, Georgy Pavlovich Dubosarsky, Dmitry Pavlovich Zakhvatkin, Iosif Kharitonovich Burda, Sergei Afanasievich Mezentsev, Natan Mironovich Barshtak, Jury Vladimirovich Chernykh