Patents by Inventor Daumantas Namikas

Daumantas Namikas 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 and apparatus for controlling by-pass valve
    Patent number: 4097183
    Abstract: Provided is a method of controlling a by-pass valve in which the discharge valve is opened or closed in an interlocked relation woth a turbine flow regulating means such as wicket gates of a water-turbine in order to bypass a stream of water with respect to the turbine in synchronism with the movement of wicket gates, thereby decreasing pressure fluctuation in a penstock of the turbine during transient conditions of operation, and is eventually closed when the wicket gates are held in an equilibrium state, thereby eliminating prolonged wasting of the available water.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: June 27, 1978
    Assignees: Bechtel International Corporation, Hitachi, Ltd.
    Inventors: Daumantas Namikas, Takao Kuwabara