Patents Assigned to Resonic Instruments AG
  • High pressure piston seal
    Patent number: 6422131
    Abstract: In a piston pressure device with a sealing device (10) for sealing between spaces of different pressure that includes an elastomer (12) as a first component and a material plastically deformable under pressure as a second component, whereby the components ensure sealing at various pressure differences, a piston (30) and a piston shaft (20), the piston (30) is axially shiftable in relation to the piston shaft (20) and the sealing device (10) is arranged form-closed in a recess between the piston (30) and the piston shaft (20).
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: July 23, 2002
    Assignee: Resonic Instruments AG
    Inventor: Theodor Funck