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2023
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Invention
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Check valve having opening tabs. A check valve includes a tubular sleeve having an upstream fluid... |
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Invention
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Check valve with secondary flap. A check valve includes a tubular sleeve having an upstream fluid... |
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Invention
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Tide gate check valve with an enlarged integral annular wall. A check valve that includes: (a) a ... |
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2022
|
Invention
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Venturi aspirator thm/voc removal system.
A trihalomethane (THM) and volatile organic compound (... |
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Invention
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Venturi aspirator thm/voc removal system. A trihalomethane (THM) and volatile organic compound (V... |
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2019
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G/S
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Plumbing fittings, namely, valves, being pinch valves, diverters and control valves |
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2017
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G/S
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Plumbing fittings, namely, hydraulic check valves |
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Invention
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Pressure and headloss maintaining valve system for clean and dirty water systems. A valve system ... |
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Invention
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Elastomeric in-line tide gate valve. A check valve includes a tubular sleeve bounding a longitudi... |
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G/S
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Plumbing fittings, namely, check valves for use in controlling water and wastewater flow |
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2016
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Invention
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Free flow collar for control valves. An apparatus for distributing gases and, optionally, liquids... |
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Invention
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Tank overflow pipe adjustable dechlorinating device. A dechlorinating device includes a mixing ch... |
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2012
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G/S
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Engineering, design and modeling for others of fluid handling systems, namely check valve applica... |
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Invention
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Multi-outlet check valve nozzle. A check valve nozzle having at least two discharge ports and pro... |
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2007
|
Invention
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Directly fluid operated pinch valve.
A flow control pinch valve comprises a flexible outer sleev... |
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Invention
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Directly fluid operated pinch valve. A flow control pinch valve comprises a flexible outer sleeve... |
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Invention
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First flush passive flow control valve.
A passive flow control valve including a barrier member ... |
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2005
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Invention
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Mixing device.
A deflector for a fluid mixing device includes a helical-shaped body having a fir... |
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2004
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G/S
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Plumbing fittings, namely, pinch valves for controlling fluid flow |
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2003
|
Invention
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Flexible half sleeve style pinch valve. A half-sleeve pinch valve includes a first body member an... |
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G/S
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Water handling equipment, namely check valves to eliminate backwash. |
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G/S
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Plumbing fittings, namely pressure sensors
Plumbing fittings, namely pinch valves, check valves, ... |
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|
Invention
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Flexible weir style pinch valve. A pinch valve for connection between an upstream pipeline and a ... |
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Invention
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Check valve with hanger. A large diameter check valve has an upstream inlet part mountable on a d... |
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Invention
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Multi-port pinch valve and methods of manufacture thereof. A multi-port pinch valve includes at l... |
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2002
|
Invention
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Method and apparatus for preventing stagnation in fluid reservoirs. An apparatus (16) for prevent... |
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Invention
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Difusser saddle connection. A diffuser saddle connection is used for the attachment of diffusers ... |
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Invention
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Diffuser saddle connection. A diffuser saddle connection is used for the attachment of diffusers ... |
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Invention
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Check valve with oversized bill. A check valve having an upstream inlet part mountable on a disch... |
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Invention
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Passive flow control valve. A passive flow control valve including a barrier member positioned in... |
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2001
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Invention
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Diffused aeration system. A diffused aeration system has an aeration tank which contains a plural... |
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G/S
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Elastomeric check valves to prevent backwash in fluid handling applications |
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|
Invention
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Pinch valve arrangement for flow control. The present invention is a pinch valve for connection b... |
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Invention
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Fine bubble diffuser. A diffuser includes a substantially rigid base member having a first side a... |
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Invention
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Diffused aeration method. A diffused aeration method carried out in an aeration tank which contai... |
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2000
|
Invention
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Flip check valve. A check valve for placement in a fluid conduit, includes a separator element wi... |
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Invention
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Reinforced tide gate valve. A support mechanism for a tide gate valve having an internal cavity, ... |
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1999
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Invention
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Fine bubble diffuser. A diffuser (10) includes a substantially rigid base member (12) having a fi... |
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1998
|
Invention
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Air diffuser valve. An air diffuser system contains a manifold and a plurality of elastomeric "du... |
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Invention
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Asymmetrical check valve. An asymmetrical check valve has an inlet end, a transition part and an ... |
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1996
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Invention
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Tide gate valve with curvilinear bill. An inversion-resistant check valve or tide gate valve has ... |
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Invention
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Inversion-resistant, readily openable tide gate valve. The present invention is directed to an in... |
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1995
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G/S
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manually operated valves made primarily of metal, namely pinch valves, check valves and gate valv... |
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1984
|
G/S
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SEWER CHECK VALVE TO ELIMINATE BACKWASH |
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1969
|
G/S
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RUBBER PIPE WITH RUBBER ELBOWS, EXPANSION JOINTS, RUBBER REDUCERS, AND FLEXIBLE PIPE |
