Patents Assigned to Tevis-Campbell Corporation
  • Vacuum cleaning system
    Patent number: 3942963
    Abstract: A vacuum cleaning system includes a stationary built-in power unit, a portable vacuum unit, and a flexible hose connecting the power unit and vacuum unit. Dirt and other particulate matter sucked into the system is trapped within a collection chamber of the vacuum unit and air within the collection chamber is evacuated therefrom to pass through the hose and the motor of the power unit.
    Type: Grant
    Filed: February 15, 1973
    Date of Patent: March 9, 1976
    Assignee: Tevis-Campbell Corporation
    Inventor: Felix H. Tevis