Patents Assigned to Proportion Air Incorporated
  • Control system for an air operated diaphragm pump
    Patent number: 7517199
    Abstract: The present invention includes methods and apparatuses for operating and controlling AOD pumps.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: April 14, 2009
    Assignee: Proportion Air Incorporated
    Inventors: David Alan Reed, Timothy David Hogue