Patents by Inventor Stephen Andrew Clift

Stephen Andrew Clift 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).

  • Helical shed
    Patent number: 6844503
    Abstract: A method of providing a shed (2) for a high-voltage insulator (1) includes providing a substantially tubular substrate (3), providing an extruder (10) having an extruder head (11) defining an extrusion direction (A), using the extruder (10) to extrude the shed (2) and applying the shed (2) on the substrate (3) while rotating the substrate relative to the extruder head (11). The extrusion direction (A) substantially coincides with the longitudinal axis of the substrate (3), and the substrate (3) is fed through the extruder head (11).
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: January 18, 2005
    Assignee: Tyco Electronics U.K. Limited
    Inventors: David William Maute Thornley, Stephen Andrew Clift, Alan Cook
  • Helical shed
    Publication number: 20040168823
    Abstract: A method of providing a shed (2) for a high-voltage insulator (1) comprises the steps of providing a substantially tubular substrate (3), providing an extruder (10) having an extruder head (11) defining an extrusion direction (A), using the extruder (10) to extrude the shed (2) and applying the shed (2) on the substrate (3) while rotating the substrate relative to the extruder head (11). According to the invention, the extrusion direction (A) substantially coincides with the longitudinal axis of the substrate (3), and the substrate (3) is fed through the extruder head (11).
    Type: Application
    Filed: December 23, 2003
    Publication date: September 2, 2004
    Inventors: David William Maute Thornley, Stephen Andrew Clift, Alan Cook