Patents by Inventor Murray E. Freeman

Murray E. Freeman 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).

  • Control valve assembly with onstream seal removal feature
    Patent number: 4273152
    Abstract: A control valve assembly for controlling fluid flow in a flowline with an onstream seal removal feature, the control valve assembly including a housing to be mounted with the flowline, flow control members mounted with the housing, seal members for preventing unwanted fluid migration between the housing and the flow control members, and access members mounted with the housing for providing access to the seal members while maintaining fluid flow to the housing.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: June 16, 1981
    Inventor: Murray E. Freeman
  • Control valve assembly
    Patent number: 4187872
    Abstract: A control valve assembly for controlling fluid flow in a flowline having a housing with a normally operative flow control structure and bypass structure therein for providing independent first and second flow paths for allowing controlled fluid passage through the housing from the flowline through the first and second flow paths, as desired.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: February 12, 1980
    Assignee: Tapco International, Inc.
    Inventors: Murray E. Freeman, Harmon E. Shipper