Patents by Inventor John N. Stanfield

John N. Stanfield 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).

  • Device for sealing the place of penetration of a pipeline in the wall of a submerged structure
    Patent number: 4270775
    Abstract: An axially flexible sealing device connecting two pipeline ends which comprises a number of sealingly connected annular members, each annular member including an inner cylindrical member, two spaced apart outer cylindrical members, and separate flexible ring members connecting the outer cylindrical members to the inner cylindrical member, each outer cylindrical member having a portion extending axially beyond the adjacent end of the inner cylindrical member when the attached flexible ring member is in an untensioned state. The sealing device is designed for use in connecting two pipelines located beneath sea level wherein the end of one of the pipelines is located in a hollow structure and one of the sealing devices is connected thereto, whereas the other end of the sealing device is sealingly connected to one end of a penetration sleeve which is sealingly connected through the wall of the structure (the other end of the sleeve being connected to the end of the other pipeline).
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: June 2, 1981
    Assignee: A/S Akers Mek. Versted
    Inventors: Nick Noensie, John N. Stanfield, Paal Pettersen
  • Method and device for sealing the place of penetration of a pipeline in the wall of a submerged structure
    Patent number: 4208055
    Abstract: An axially flexible sealing device connecting two pipeline ends which comprises a number of sealingly connected annular members, each annular member including an inner cylindrical member, two spaced apart outer cylindrical members, and separate flexible ring members connecting the outer cylindrical members to the inner cylindrical member, each outer cylindrical member having a portion extending axially beyond the adjacent end of the inner cylindrical member when the attached flexible ring member is in an untensioned state. The sealing device is designed for use in connecting two pipelines located beneath sea level wherein the end of one of the pipelines is located in a hollow structure and one of the sealing devices is connected thereto, whereas the other end of the sealing device is sealingly connected to one end of a penetration sleeve which is sealingly connected through the wall of the structure (the other end of the sleeve being connected to the end of the other pipeline).
    Type: Grant
    Filed: September 12, 1978
    Date of Patent: June 17, 1980
    Assignee: A/S Akers Mek. Versted
    Inventors: Nick Noensie, John N. Stanfield, Paal Pettersen