Patents by Inventor Peter Mark Middleton

Peter Mark Middleton 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).

  • Modular thermowell and method
    Patent number: 8926176
    Abstract: A thermowell is provided for positioning on a pipeline or tank to measure the temperature. The thermowell comprises a head for receiving a probe, and the well has a closed end. An elongated hollow tubular connects the head and the well. The tubular includes one or more tubular parts, each of a selected axial length, joined by a friction welding to one of the more of the head, the well or another of the tubular parts.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: January 6, 2015
    Assignee: PGI International, Ltd.
    Inventors: Peter Mark Middleton, Larry A. Quick
  • METAL CONE PLUG VALVE
    Publication number: 20140109970
    Abstract: The cone plug valve includes a valve body, a fluid inlet and a fluid outlet, a valve stem, and a cone supported on the valve stem. The metal cone is rotatably separate from the valve stem but moves axially in response to axially movement of the valve stem. A seat is fixably positioned within the valve body for sealing engagement with the cone, which has a sealing surface extending outward from the cone shaped exterior surface for sealing with the seat to close off flow through the valve body.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 24, 2014
    Applicant: PGI INTERNATIONAL, LTD.
    Inventor: Peter Mark Middleton
  • PLUG VALVE WITH INTEGRATED HARD FACE SEAT
    Publication number: 20140110617
    Abstract: A plug valve includes a valve body (10) and a valve stem (30) supporting a plug (32). A seat is formed on and is integral with the valve body. The seat includes a seating surface (16) above and below the passageway connecting the fluid inlet and the fluid outlet. The seating surface provides a seal with the plug. A method of forming the seat on the valve body is disclosed.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 24, 2014
    Applicant: PGI INTERNATIONAL, LTD.
    Inventor: Peter Mark Middleton
  • Modular Thermowell and Method
    Publication number: 20140036960
    Abstract: A thermowell is provided for positioning on a pipeline or tank to measure the temperature. The thermowell comprises a head for receiving a probe, and the well has a closed end. An elongated hollow tubular connects the head and the well. The tubular includes one or more tubular parts, each of a selected axial length, joined by a friction welding to one of the more of the head, the well or another of the tubular parts.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Applicant: PGI International, Ltd.
    Inventors: Peter Mark Middleton, Larry A. Quick