Patents Assigned to Sotec, Inc.
  • Seal for submersible pipe swivel
    Patent number: 4103942
    Abstract: A submersible large diameter pipe swivel is provided with seal means which is designed and adapted to allow small radial and axial relative movements (wobble) between the pipe and the swivel joint, while maintaining full integrity of the seal and which, being unaffected by such wobble, therefore offers minimum resistance to rotation.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: August 1, 1978
    Assignee: Sotec, Inc.
    Inventors: William L. Kiely, Kristen I. Pedersen