Patents by Inventor Alan Hesketh

Alan Hesketh 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).

  • Axial flow stream turbines
    Patent number: 7186074
    Abstract: A drum-type rotor carries an annular row of moving blades having root portions held within a slot in the periphery of the rotor. A turbine casing surrounds the rotor and carries a static blade assembly with an annular row of static blades which, together with the annular row of moving blades, constitutes an impulse turbine stage. The static blade assembly has a radially inner static ring confronting a periphery of the rotor with a seal acting therebetween. The static blade assembly has an outer static ring which has a substantially greater thermal inertia and stiffness then the inner static ring and is capable of sufficient radial sliding relative to the casing so as to accommodate relative thermal expansion and contraction of the outer static ring and the turbine casing.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: March 6, 2007
    Assignee: Alstom Technology, Ltd.
    Inventors: David Paul Blatchford, Richard Martin Bridge, Philip David Hemsley, Alan Hesketh, Adrian Lord
  • Axial flow steam turbines
    Publication number: 20040253100
    Abstract: A drum-type rotor carries an annular row of moving blades having root portions held within a slot in the periphery of the rotor. A turbine casing surrounds the rotor and carries a static blade assembly with an annular row of static blades which, together with the annular row of moving blades, constitutes an impulse turbine stage. The static blade assembly has a radially inner static ring confronting a periphery of the rotor with a seal acting therebetween. The static blade assembly has an outer static ring which has a substantially greater thermal inertia and stiffness then the inner static ring and is capable of sufficient radial sliding relative to the casing so as to accommodate relative thermal expansion and contraction of the outer static ring and the turbine casing.
    Type: Application
    Filed: May 13, 2004
    Publication date: December 16, 2004
    Applicant: ALSTOM Technology Ltd
    Inventors: David Paul Blatchford, Richard Martin Bridge, Philip David Hemsley, Alan Hesketh, Adrian Lord