Patents by Inventor Endre Szilvasi

Endre Szilvasi 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).

  • Stop valve
    Patent number: 4292996
    Abstract: A fully automatically operable pneumatic stop valve is provided which rests on the principle of pressure differences in its various membrane spaces in controlling the fluid flow through the valve, wherein the rising fluid closes a fluid level control pipe and thereby upsets the pressure conditions in an auxiliary valve membrane space which in turn controls the pressure in the main membrane space controlling the closing of the main valve.
    Type: Grant
    Filed: October 24, 1979
    Date of Patent: October 6, 1981
    Assignee: OMUV Orvosi Muszer es Vasipari Szovetkezet
    Inventors: Jozsef Pataki, Jozsef Bucsi, Istvan Bona, Endre Szilvasi, Andras Gazdag, Antal Koty, Ferenc Hidvegi