Patents by Inventor Ernst Aggeevich Ogloblin

Ernst Aggeevich Ogloblin 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).

  • Hydraulic control valve
    Patent number: 4022425
    Abstract: In a hydraulic control valve a spool accommodating bore of a valve body has eccentric circular grooves. Hydraulic resistance to the fluid flow in shallow portion of the grooves is more than that in deep portions, owing to which the fluid flow by-passes the high-resistance zones in the shallow portions, so that the total hydraulic resistance and the path of the fluid flow through the valve is reduced.
    Type: Grant
    Filed: October 3, 1975
    Date of Patent: May 10, 1977
    Inventors: Boris Izrailevich Govzman, Ernst Aggeevich Ogloblin