Patents Assigned to THE BROTHERS DIETRICH
  • Pump for transfer of liquids containing suspended solids
    Patent number: 9822770
    Abstract: A liquid transfer pump comprises a bellows-type chamber retractable and extendable by a reciprocating drive. The pump is fed by feed stock inflow controlled by a flexible tubular pinch-type valve, and propelled out of the chamber through an identical pinch-type valve. Quick pneumatic relief valves mounted directly on the pinch-type valves ensure instantaneous opening of the pinch-type valves thereby regulating liquid flow. Synchronous regulation of pump cycles is maintained by computer or microprocessor control.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: November 21, 2017
    Assignee: THE BROTHERS DIETRICH
    Inventor: Kirby Norman Pabst