Patents Assigned to D & J Filtration Systems
  • Filter backflushing system
    Patent number: 5374351
    Abstract: A filter backflushing system including either a pneumatically-driven piston or pneumatic accumulator for propelling a supply of a filtered backflushing fluid, contained in a backflushing fluid chamber, in a reverse direction through a filter element. The filter backflushing system provides a high intensity, substantially instantaneous, constant pressure backflushing flow which effectively removes clogging contaminants from the filter element.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: December 20, 1994
    Assignee: D & J Filtration Systems
    Inventors: Joseph A. Bolton, Peter T. Carstensen