Patents by Inventor Thomas Paul Offord

Thomas Paul Offord 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).

  • Variable gear ratio magnetic gearbox
    Patent number: 8593026
    Abstract: A magnetic gear arrangement is provided comprising a first gear member for generating a first magnetic field and a second gear member for generating a second magnetic field. A coupling element is disposed between the first and second gear members and provides arrangements of interpoles which couple the first and second magnetic fields. The coupling element comprises a plurality of magnetisable lamellae, each interpole in an arrangement of interpoles being formed from a group of neighboring lamellae. Selected lamellae are deactivatable to provide boundaries between adjacent interpoles. This allows different numbers and arrangements of interpoles to be formed, so as to provide different gear ratios between the first and second gear members.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: November 26, 2013
    Assignee: Rolls-Royce PLC
    Inventors: James William Philip Montgomery, Huw Llewelyn Edwards, Thomas Paul Offord