Patents by Inventor Philip Thomas Rumsby

Philip Thomas Rumsby 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 PROCESSING A WORKPIECE
    Publication number: 20110000898
    Abstract: A method is described for simultaneously writing patterns in thin films of material coated on the opposite sides of thin glass or plastic substrates by direct write, laser ablation. The substrates are fully or partially transparent to the laser radiation used and in addition the surfaces of the substrates are not assumed to be flat. Different registered patterns may be applied at the same time to opposite sides of the substrates.
    Type: Application
    Filed: February 10, 2009
    Publication date: January 6, 2011
    Inventor: Philip Thomas Rumsby
  • Method of and apparatus for forming nozzles
    Patent number: 7473387
    Abstract: A nozzle in a nozzle plate for an inkjet printhead is formed by directing a laser beam at a nozzle plate. Accurate control of the divergence of the beam is achieved by splitting the beam into sub-beams, each sub-beam having divergence with an origin lying apart from the point at which the beam is created by splitting, and thereafter recombining the sub-beams. Greater accuracy in the taper and inlet shape of the manufactured nozzle is thereby obtained.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: January 6, 2009
    Assignee: Xaar Technology Limited
    Inventors: Stephen Temple, Philip Thomas Rumsby
  • Method and apparatus for drilling microvia holes in electrical circuit interconnection packages
    Patent number: 6576869
    Abstract: This invention relates to using mid-infrared high-power pulsed laser radiation sources for drilling high-quality microvia interconnection holes in printed circuit (wiring) boards and other electrical circuit packages.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: June 10, 2003
    Assignees: Excellon Automation Co., Exitech Limited
    Inventors: Malcolm Charles Gower, Philip Thomas Rumsby, Dafydd Wyn Thomas
  • Method of and apparatus for forming nozzles
    Publication number: 20020003320
    Abstract: A nozzle in a nozzle plate for an inkjet printhead is formed by directing a laser beam at a nozzle plate. Accurate control of the divergence of the beam is achieved by splitting the beam into sub-beams, each sub-beam having divergence with an origin lying apart from the point at which the beam is created by splitting, and thereafter recombining the sub-beams. Greater accuracy in the taper and inlet shape of the manufactured nozzle is thereby obtained.
    Type: Application
    Filed: January 3, 2001
    Publication date: January 10, 2002
    Applicant: Xaar Technology Limited
    Inventors: Stephen Temple, Philip Thomas Rumsby
  • Method of and apparatus for forming nozzles
    Patent number: 6228311
    Abstract: A nozzle in a nozzle plate for an inkjet printhead is formed by directing a laser beam at a nozzle plate. Accurate control of the divergence of the beam is achieved by splitting the beam into sub-beams, each sub-beam having divergence with an origin lying apart from the point at which the beam is created by splitting, and thereafter recombining the sub-beams. Greater accuracy in the taper and inlet shape of the manufactured nozzle is thereby obtained.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: May 8, 2001
    Assignee: Xaar Technology Limited
    Inventors: Stephen Temple, Philip Thomas Rumsby