Patents by Inventor Edi Burch

Edi Burch 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 safety and regulating system
    Patent number: 5269141
    Abstract: This hydraulic safety and regulating system for a steam feed of a turbine has a rapid-action (4) and a steam regulating valve (3), and a line system monitored by a safety downward-control unit (22). The monitored line system is designed as both a power oil supply and as a safety oil system. This results in a hydraulic safety regulating system which is simple to build and has a reduced number of possible leakage points.
    Type: Grant
    Filed: September 10, 1992
    Date of Patent: December 14, 1993
    Assignee: Asea Brown Boveri Ltd.
    Inventors: Edi Burch, Heinz Frey
  • Drive for a steam servo valve
    Patent number: 5095804
    Abstract: A drive for a steam servo valve (2), including a control valve arrangement for regulating the actuating pressure of a servo drive (1), whereby the drive can always be actuated reliably and quickly even with comparatively high oil pressure. This is achieved by the control valve arrangement having at least two regulatable control valves (17, 21) which are pressure-actuated via at least one pilot regulating valve (proportional pressure valve 29, 34).
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: March 17, 1992
    Assignee: Asea Brown Boveri Ltd.
    Inventor: Edi Burch