Patents by Inventor Loren G. Kowalchuk

Loren G. Kowalchuk 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).

  • Insert assembly for a wellhead choke valve
    Patent number: 6648070
    Abstract: A reverse flow insert assembly is provided wherein the flow trim of the choke valve is positioned horizontally within the tubular cartridge, so that the cage bore outlet is aligned with the valve body side opening. A collar is provided to throttle the flow ports of the cage. The valve stem assembly is adapted to bias the collar along the horizontal side wall of the cage. The resulting insert assembly can be positioned in the valve body to modify the valve for fluid injection service on a sub-sea wellhead.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: November 18, 2003
    Assignee: Master Flo Valve Inc.
    Inventors: Harry Richard Cove, Loren G. Kowalchuk
  • Insert assembly for a wellhead choke valve
    Publication number: 20030098151
    Abstract: A reverse flow insert assembly is provided wherein the flow trim of the choke valve is positioned horizontally within the tubular cartridge, so that the cage bore outlet is aligned with the valve body side opening. A collar is provided to throttle the flow ports of the cage. The valve stem assembly is adapted to bias the collar along the horizontal side wall of the cage. The resulting insert assembly can be positioned in the valve body to modify the valve for fluid injection service on a sub-sea wellhead.
    Type: Application
    Filed: November 27, 2001
    Publication date: May 29, 2003
    Inventors: Harry Richard Cove, Loren G. Kowalchuk