Patents by Inventor Ivor John Roberts

Ivor John Roberts 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).

  • Carbon seal assembly
    Patent number: 10107121
    Abstract: A carbon seal assembly comprises an annular member adapted to be secured to a structure. An annular seal runner is sealingly mounted to a shaft to rotate therewith, with the seal runner being made of a material complementary to that of the annular member for magnetic attraction therebetween. An annular carbon seal element is mounted to the annular seal runner to rotate therewith and positioned in a gap between the annular member and the annular seal runner, the annular carbon seal element having an annular wear surface abutting against a face of the annular member. A cross-sectional area of the annular carbon seal element increases as the axial dimension of the annular seal runner decreases for at least a part of the seal.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: October 23, 2018
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Ivor John Roberts
  • CARBON SEAL ASSEMBLY
    Publication number: 20140154053
    Abstract: A carbon seal assembly comprises an annular member adapted to be secured to a structure. An annular seal runner is sealingly mounted to a shaft to rotate therewith, with the seal runner being made of a material complementary to that of the annular member for magnetic attraction therebetween. An annular carbon seal element is mounted to the annular seal runner to rotate therewith and positioned in a gap between the annular member and the annular seal runner, the annular carbon seal element having an annular wear surface abutting against a face of the annular member. A cross-sectional area of the annular carbon seal element increases as the axial dimension of the annular seal runner decreases for at least a part of the seal.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 5, 2014
    Applicant: PRATT & WHITNEY CANADA CORP.
    Inventor: Ivor John Roberts