Patents Assigned to Advanced Vacuum Company Inc.
  • Seal cartridge for a vacuum pumps
    Publication number: 20090108540
    Abstract: An exemplary embodiment providing one or more improvements includes a shaft seal cartridge for the motor shaft of a vacuum pump which combines three shaft seals in one unit. The cartridge greatly simplifies the replacement of seals and eliminates the requirement for expensive seal lubrication oil, and extends the life of the shaft seals. Embodiments of the cartridge are manufactured from fiberglass/molybdenum filled polytetrafluoroethylene.
    Type: Application
    Filed: March 5, 2008
    Publication date: April 30, 2009
    Applicant: Advanced Vacuum Company Inc.
    Inventors: Kaye G. Kolb, JR., Brian L. Fisher