Patents by Inventor Patrick Carnis

Patrick Carnis 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).

  • Lipped sealing ring having wax packed in helical grooves to facilitate testing upon installation
    Patent number: 5755444
    Abstract: A lipped sealing ring for a mechanical component that moves relatively to it. The lip is of a polymeric material, is flexible, and is forced subject to resilient compression against the component in the vicinity of a sealing gap. A helical shoulder extends longitudinally and at an acute angle to the axis of the component through at least one point along the circumference of the gap. The sealing gap is packed with wax at least in the vicinity of the helical shoulder.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: May 26, 1998
    Assignee: Carl Freudenberg
    Inventors: Patrick Carnis, Gilbert Pataille