Patents Assigned to Cornell Pump Manufacturing Corporation
  • Aeration system
    Patent number: 5591001
    Abstract: A centrifugal pump having a rotatable impeller that operates to drain liquid into the intake of the pump. An air-introduction passage connects with a subatmospheric pressure region at the back of the impeller. Air introduced through this passage is mixed with a portion of the fluid pumped, and the air-fluid mixture is expelled as the discharge of the pump.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: January 7, 1997
    Assignee: Cornell Pump Manufacturing Corporation
    Inventors: Robert B. Ray, Mark M. Qandil, Gary L. Olin