Patents by Inventor Roy E. Soderberg

Roy E. Soderberg 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).

  • Blowdown valve
    Patent number: 4449544
    Abstract: A ball valve is provided for cleaning out piping systems between steam boilers and turbine generators of electrical power generating plants prior to start up operations. The valve is designed to minimize impingement between foreign substances trapped in the pipelines and the internal valve passages, and to reduce thermal shock to the piping systems when the valve is opened to atmosphere to rid the system of said foreign substances.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: May 22, 1984
    Assignee: Crosby Valve & Gage Company
    Inventor: Roy E. Soderberg
  • Control valve
    Patent number: 4037818
    Abstract: A rotatable plug of a control valve is supported by trunions journaled along an axis transverse to the direction of flow of a fluid to be controlled and is provided with a flow passage defined in part by a surface having at least one baffle formed thereon for providing desired flow characteristics over the entire range of plug travel.
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: July 26, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Roy E. Soderberg, Albert J. Hanssen