Patents by Inventor Liam P. Sullivan

Liam P. Sullivan 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).

  • Piston seal ring
    Patent number: 11892083
    Abstract: A split ring seal has: a first circumferential end and a second circumferential end; an inner diameter surface and an outer diameter surface; a first axial end face and a second axial end face. A circumferentially distributed first plurality of open channels are along the first axial end face. A circumferentially distributed second plurality of open channels are along the second axial end face.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: February 6, 2024
    Assignee: RTX Corporation
    Inventors: Liam P. Sullivan, Nicholas J. Lawliss, Xuejun Liu, John P. Virtue, Jr., Kalpendu J. Parekh
  • Piston Seal Ring
    Publication number: 20230323950
    Abstract: A split ring seal has: a first circumferential end and a second circumferential end; an inner diameter surface and an outer diameter surface; a first axial end face and a second axial end face. A circumferentially distributed first plurality of open channels are along the first axial end face. A circumferentially distributed second plurality of open channels are along the second axial end face.
    Type: Application
    Filed: April 6, 2022
    Publication date: October 12, 2023
    Applicant: Raytheon Technologies Corporation
    Inventors: Liam P. Sullivan, Nicholas J. Lawliss, Xuejun Liu, John P. Virtue, JR., Kalpendu J. Parekh