Patents by Inventor Brian Alex Handley

Brian Alex Handley 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).

  • Patent number: 7730995
    Abstract: Acoustic noise from relatively high pressure gas flows as a result of opening for example a bypass valve in a gas turbine engine can cause problems. By provision of an acoustic apparatus incorporating an inner chamber where there is a pressure reduction and then a chamber divider surface incorporating small apertures with a wide spacing distribution an upward shift in acoustic frequency of the gas flow is achieved beyond normal human comprehension. An outer chamber is provided to receive the fine gas flow jets from the apertures in the chamber divider surface for further pressure reduction and low pressure release through wider apertures in an exit surface.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: June 8, 2010
    Assignee: Rolls-Royce PLC
    Inventors: Graeme Clive Hunt, Zahid Muhammed Hussain, Brian Alex Handley
  • Publication number: 20080252021
    Abstract: A sealed assembly comprising two bodies and an elastomeric seal therebetween wherein the seal comprises an internal web that is aligned in the general direction of a shear force between the two bodies.
    Type: Application
    Filed: November 7, 2007
    Publication date: October 16, 2008
    Applicant: ROLLS-ROYCE PLC
    Inventors: BRIAN ALEX HANDLEY, ANDREW JAMES MULLENDER
  • Publication number: 20080179132
    Abstract: Acoustic noise from relatively high pressure gas flows as a result of opening for example a bypass valve in a gas turbine engine can cause problems. By provision of an acoustic apparatus incorporating an inner chamber where there is a pressure reduction and then a chamber divider surface incorporating small apertures with a wide spacing distribution an upward shift in acoustic frequency of the gas flow is achieved beyond normal human comprehension. An outer chamber is provided to receive the fine gas flow jets from the apertures in the chamber divider surface for further pressure reduction and low pressure release through wider apertures in an exit surface.
    Type: Application
    Filed: October 22, 2007
    Publication date: July 31, 2008
    Applicant: ROLLS-ROYCE PLC
    Inventors: GRAEME CLIVE HUNT, ZAHID MUHAMMED HUSSAIN, BRIAN ALEX HANDLEY