Patent ID: 11898548
Assignee: FLOW CONTROL LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 6:
7. A dual diaphragm pump (10) according to claim 1, wherein
the two input duckbill check valves (30, 32) include an upper input duckbill check valve configured to provide the particle medium from the inlet check valve assembly channel (20d) to an upper inlet manifold conduit of an upper diaphragm pumping assembly, and include a lower input duckbill check valve configured to provide the particle medium from the inlet check valve assembly channel (20d) to a lower inlet manifold conduit of a lower diaphragm pumping assembly; and
the two output duckbill check valves (40, 42) include an upper output duckbill check valve configured to provide the particle medium from an upper outlet manifold conduit of the upper diaphragm pumping assembly via the outlet check valve assembly channel (20e) to the outlet chamber (20b), and include a lower output duckbill check valve configured to provide the particle medium from a lower outlet manifold conduit of the lower diaphragm pumping assembly via the outlet check valve assembly channel (20e) to the outlet chamber (20b).