Patents by Inventor Martin J Stevens

Martin J Stevens 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).

  • Laser drilling shaped holes
    Patent number: 7019257
    Abstract: A method of laser trepan drilling diffuser type holes in a component which comprises directing the beam of the laser such that it drills a diffuser section on the beam entry side of the hole with the beam exiting the hole without interfering with the remaining non-diffuser part of the hole.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: March 28, 2006
    Assignee: Rolls-Royce plc
    Inventor: Martin J Stevens
  • Method of forming a shaped hole
    Patent number: 6914214
    Abstract: A method of manufacturing a through hole in a component between a first surface and a second surface, the through hole including a cavity formed in the first surface and a communicating passage between the second surface and the cavity including the steps of: a) laser percussion drilling a plurality of blind holes in the first surface to form the cavity and b) drilling a communicating passage between the cavity and the second surface.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: July 5, 2005
    Assignee: Rolls-Royce plc
    Inventors: Pamela J Byrd, Neil K Hastilow, Martin J Stevens
  • Method of forming a shaped hole
    Publication number: 20040232122
    Abstract: A method of manufacturing a through hole in a component between a first surface and a second surface, the through hole including a cavity formed in the first surface and a communicating passage between the second surface and the cavity including the steps of:
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Applicant: ROLLS-ROYCE, PLC
    Inventors: Pamela J. Byrd, Neil K. Hastilow, Martin J. Stevens
  • Method of forming a shaped hole
    Patent number: 6781091
    Abstract: The present invention relates to a method of manufacturing a through hole in a component between a first surface and a second surface, the through hole comprising a cavity formed in the first surface and a communicating passage between the second surface and the cavity comprising the steps of: a) laser percussion drilling a plurality of blind holes in the first surface to form the cavity b) drilling a communicating passage between the cavity and the second surface.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: August 24, 2004
    Assignee: Rolls-Royce PLC
    Inventors: Pamela J Byrd, Neil K Hastilow, Martin J Stevens
  • Laser drilling shaped holes
    Publication number: 20040094524
    Abstract: A method of laser trepan drilling diffuser type holes in a component which comprises directing the beam of the laser such that it drills a diffuser section on the beam entry side of the hole with the beam exiting the hole without interfering with the remaining non-diffuser part of the hole.
    Type: Application
    Filed: October 20, 2003
    Publication date: May 20, 2004
    Applicant: ROLLS-ROYCE PLC
    Inventor: Martin J. Stevens
  • Method of forming a shaped hole
    Publication number: 20030091432
    Abstract: The present invention relates to a method of manufacturing a through hole in a component between a first surface and a second surface, the through hole comprising a cavity formed in the first surface and a communicating passage between the second surface and the cavity comprising the steps of:
    Type: Application
    Filed: October 30, 2002
    Publication date: May 15, 2003
    Applicant: ROLLS-ROYCE, PLC
    Inventors: Pamela J. Byrd, Neil K. Hastilow, Martin J. Stevens