Ports Patents (Class 277/462)
  • Patent number: 11199261
    Abstract: A play-free oil scraper ring has a cross section with a running surface leg having at least one scraper web that is situated on a running surface, an upper piston ring flank leg that is connected to the running surface leg, and the upper surface of which forms an upper piston ring flank. A lower piston ring flank leg is likewise connected to the running surface leg, the lower surface of which forms a lower piston ring flank. The upper and/or the lower piston ring flank leg are/is elastic, taper(s) inwardly in the radial direction, and their/its piston ring flank(s) essentially form(s) a conical surface in an uninstalled state. The uninstalled piston ring has an axial height that exceeds a width of a piston ring groove for which the piston ring is intended.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: December 14, 2021
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Nigel Gray
  • Patent number: 9957827
    Abstract: The present disclosure relates generally to a sliding seal between two components. The sliding seal includes a first seal section and an adjacent second seal section, each including a base and two extending legs defining respective first and second ends of the seal. At least the first seal section includes a first plurality of slots extending from the first end to the base and a second plurality of slots extending from the second end to the base.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: May 1, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Timothy M Davis, Paul M Lutjen, Mark J. Rogers
  • Patent number: 9587502
    Abstract: The present disclosure relates generally to a seal between two circumferential components. The seal comprises one or more rope seals retained within the seal cavity by a carrier.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: March 7, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Timothy M. Davis, Mark J. Rogers