Patents Examined by Enoch Pewey
  • Patent number: 6409180
    Abstract: A metallic seal is provided that concentrates the available load over a narrow band to produce a sealing dam over a sufficient width to minimize leakage on a molecular level. The metallic seal has a first annular beam section, a second annular beam section, and inner and outer surfaces extending between the first and second annular beam sections. One of the inner and outer surfaces has an annular recess that at least partially defines an annular column section of material extending substantially perpendicular between said first and second annular beam sections thereto. The first annular beam section has a first non-sealing surface and a first raised portion with a first annular sealing surface facing in a first axial direction to contact a first member for creating a first annular sealing dam therebetween.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: June 25, 2002
    Assignee: PerkinElmer, Inc.
    Inventors: John Loyd Spence, Kevin R. Felber