Patents Assigned to International Packings Corporation
  • High pressure shaft seal
    Patent number: 4300778
    Abstract: A unitary high pressure shaft seal having an annular floating support element for preventing pressure extrusion of the primary sealing lip by accommodating any relative eccentricity between a moving shaft and a surrounding housing.
    Type: Grant
    Filed: February 7, 1980
    Date of Patent: November 17, 1981
    Assignee: International Packings Corporation
    Inventor: Roger O. Gagne
  • Hydrodynamic shaft seal
    Patent number: 4288083
    Abstract: A hydrodynamic shaft seal for use under both static and dynamic conditions features a sealing face having one static sealing surface at the non-liquid side of the seal and a dynamic sealing surface having a plurality of angular vanes forming chambers open to the liquid at the liquid side of the seal. An annular coil spring biases the static sealing surface into contact with the shaft under static conditions and controls its spacing under dynamic conditions during which the vanes propel liquid toward the liquid side of the seal.
    Type: Grant
    Filed: February 7, 1980
    Date of Patent: September 8, 1981
    Assignee: International Packings Corporation
    Inventor: Karl Braconier