Diaphragm pump utilizing duckbill valves, multi-directional ports and flexible electrical connectivity

Patent metadata

Field	Value
Publication number	US-11898548-B2
Application number	US-202016748166-A
Country	US
Kind code	B2
Filing date	Jan 21, 2020
Priority date	Jun 16, 2014
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

Diaphragm pump features upper/lower diaphragm pumping assemblies (U/LDPAs) for pumping fluid and a manifold assembly arranged therebetween. The manifold assembly include a manifold body having an inlet with dual inlet ports and an inlet chamber to receive the fluid from a source; an inlet check valve assembly channel having an inlet duckbill check valve assembly (DCVA) arranged therein to receive the fluid from the dual inlet ports; U/LDPAs orifices having the U/LDPA arranged therein to receive the fluid from the inlet DCVA via first upper/lower manifold conduits and provide the fluid from the U/LDPAs via second upper/lower manifold conduits; an outlet check valve assembly channel having an outlet DCVA arranged therein to receive the fluid from the U/LDPAs; and an outlet having dual outlet ports and an outlet chamber to receive the fluid from the U/LDPAs and provide the fluid from the pump to a outlet source.

First claim

What is claimed is:

1. A dual diaphragm pump ( 10 ), comprising:
upper and lower diaphragm pumping assemblies ( 12 , 14 ) having diaphragms ( 12 , 14 a ) and upper and lower inlet manifold conduits in fluidic communication with upper and lower outlet manifold conduits;
a combination of a motor ( 13 ) and a shaft/diaphragm actuator assembly ( 15 ) coupled to the upper and lower diaphragm pumping assemblies ( 12 , 14 ) and together with the diaphragms ( 12 a , 14 a ) in order to provide a liquid from the upper and lower inlet manifold conduits to the upper and lower outlet manifold conduits; and
a manifold assembly ( 20 ) arranged between the upper and lower inlet manifold conduits and the upper and lower outlet manifold conduits of the upper and lower diaphragm pumping assemblies ( 12 , 14 ), the upper and lower diaphragm pumping assemblies ( 12 , 14 ) configured to pump a particle medium having solids and particulates with up to four millimeters in diameter through the manifold assembly ( 20 ) without fouling or clogging, the manifold assembly ( 20 ) having a manifold body that is a plastic injection molded integral structure and includes:
an inlet having at least one inlet port ( 20 a ( 1 ), 20 a ( 2 )) and an inlet chamber ( 20 a ) configured to receive the particle medium from at least one fluid source,
an inlet check valve assembly channel ( 20 d ) formed therein and being in fluidic communication with the inlet chamber ( 20 a ) and both the upper and lower inlet manifold conduits of the upper and lower diaphragm pumping assemblies ( 12 , 14 ),
an inlet duckbill check valve assembly having two input duckbill check valves ( 30 , 32 ) arranged in the inlet check valve assembly channel ( 20 d ), each input duckbill check valve configured to allow the particle medium to pass from the inlet chamber ( 20 a ), through the inlet check valve assembly channel ( 20 d ), to a respective one of the upper and lower inlet manifold conduits of the upper and lower diaphragm pumping assemblies ( 12 , 14 ),
an outlet check valve assembly channel ( 20 e ) formed therein and being in fluidic communication with both the upper and lower outlet manifold conduits of the upper and lower diaphragm pumping assemblies ( 12 , 14 ),
an outlet duckbill check valve assembly having two output duckbill check valves ( 40 , 42 ) arranged in the outlet check valve assembly channel ( 20 e ), each output duckbill check valve configured to allow the particle medium to pass from the respective one of the upper and lower outlet manifold conduits of the upper and lower diaphragm pumping assemblies ( 12 , 14 ) and to the outlet check valve assembly channel ( 20 e ), and
an outlet having an outlet chamber ( 20 b ) and at least one outlet port ( 20 b ( 1 ), 20 b ( 2 )), the outlet chamber ( 20 b ) being in fluidic communication with the outlet check valve assembly channel ( 20 e ), and configured to allow the particle medium to pass from the outlet check valve assembly channel ( 20 e ), through the outlet chamber ( 20 b ), to the at least one outlet port ( 20 b ( 1 ), 20 b ( 2 )) for providing to at least one fluid outlet source,
wherein the at least one outlet port comprises a plurality of outlet ports, wherein each of the plurality of outlet ports is configured to slidably receive one of: a first port fitting connection that allows passage of fluid either to or from a corresponding one of the plurality of outlet ports, and a second port fitting connection that does not allow passage of fluid to or from the corresponding one of the plurality of outlet ports.

2. A dual diaphragm pump ( 10 ) according to claim 1 , wherein the at least one inlet port ( 20 a ( 1 ), 20 a ( 2 )) comprises dual inlet ports ( 20 a ( 1 ), 20 a ( 2 )) configured to receive inlet port fitting connections.

3. A dual diaphragm pump ( 10 ) according to claim 2 , wherein the dual inlet ports ( 20 a ( 1 ), 20 a ( 2 )) are configured or oriented orthogonal to one another; and the plurality of outlet ports ( 20 b ( 1 ), 20 b ( 2 )) are configured or oriented orthogonal to one another.

4. A dual diaphragm pump ( 10 ) according to claim 2 , wherein the dual inlet ports ( 20 a ( 1 ), 20 a ( 2 )) and the inlet chamber ( 20 a ) are configured to receive the particle medium from two fluid sources for mixing together in the inlet chamber ( 20 a ); and the plurality of outlet ports ( 20 b ( 1 ), 20 b ( 2 )) and the outlet chamber ( 20 b ) are configured to provide a mixed fluid to the at least one fluid outlet source.

5. A dual diaphragm pump ( 10 ) according to claim 2 , wherein either the dual inlet ports ( 20 a ( 1 ), 20 a ( 2 )), or the plurality of outlet ports ( 20 b ( 1 ), 20 b ( 2 )), or both the dual inlet ports ( 20 a (I), 20 a ( 2 )) and the plurality of outlet ports ( 20 b (I), 20 b ( 2 )) are configured to receive different port fitting connections.

6. A dual diaphragm pump ( 10 ) according to claim 1 , wherein the manifold assembly ( 20 ) comprises two manifold assembly plates ( 12 b , 14 b ) attached to upper and lower surfaces of the manifold body and configured with the upper and lower inlet manifold conduits and the upper and lower outlet manifold conduits.

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 ( 20 d ) 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 ( 20 d ) 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 ( 20 e ) to the outlet chamber ( 20 b ), 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 ( 20 e ) to the outlet chamber ( 20 b ).

8. A dual diaphragm pump ( 10 ) according to claim 1 , wherein
the at least one inlet port comprises a plurality of inlet ports;
the plurality of inlet ports are configured or oriented orthogonal to one another, and the plurality of outlet ports are configured or oriented orthogonal to one another; and
the directions of orientations of the plurality of inlet ports and corresponding directions of the plurality of outlet ports extend in a common plane.

Assignees

• Flow Control LLC

Inventors

• Meza Humberto V
• Tran Derrick T
• Perkins Bernard L

Classifications

• F04B43/026 Primary

  each plate-like pumping flexible member working in its own pumping chamber · CPC title

• F04B15/02

  the fluids being viscous or non-homogeneous · CPC title

• F04B43/04

  Pumps having electric drive · CPC title

• F04B53/10

  Valves; Arrangement of valves · CPC title

• F04B53/1057

  the valve being a tube, e.g. normally closed at one end · CPC title