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Class Information
Number: 137/813
Name: Fluid handling > Flow affected by fluid contact, energy field or coanda effect (e.g., pure fluid device or system) > Means to cause rotational flow of fluid (e.g., vortex generator) > By tangential input to axial output (e.g., vortex amplifier) > With means to vary input or output of device
Description: Device provided with means to alter the flow of any of the streams of fluid into or out of the device.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8602046 Method and a device for the cleaning of a piston-based hydraulic accumulator Dec. 10, 2013
8555975 Exit assembly with a fluid director for inducing and impeding rotational flow of a fluid Oct. 15, 2013
8511714 Connector assemblies for flow restricting apparatuses Aug. 20, 2013
8505577 Pnumatically actuated bi-propellant valve (PABV) system for a throttling vortex engine Aug. 13, 2013
8397761 Vortex brake for a liquid drainage system Mar. 19, 2013
8387662 Device for directing the flow of a fluid using a pressure switch Mar. 5, 2013
7832430 Loss reduction apparatus Nov. 16, 2010
7814935 Vortex valve Oct. 19, 2010
7757715 Accumulator and method of manufacturing flow damper Jul. 20, 2010
7712317 Flow control systems May. 11, 2010
7478764 Fluidic oscillator for thick/three-dimensional spray applications Jan. 20, 2009
7234489 Valve with vortex chamber and a mechanical member to shut off flow Jun. 26, 2007
7011101 Valve system Mar. 14, 2006
6817375 Torsion generator Nov. 16, 2004
6730236 Method for separating liquids in a separation system having a flow coalescing apparatus and separation apparatus May. 4, 2004
6402820 Fluidic level control systems Jun. 11, 2002
6374858 Vortex valves Apr. 23, 2002
6253782 Feedback-free fluidic oscillator and method Jul. 3, 2001
6082387 Tornado generation method and apparatus Jul. 4, 2000
6065498 Liquid flow control device May. 23, 2000
6053206 Device for controlling a liquid flow in a conduit system Apr. 25, 2000
5971023 Junction for shear sensitive biological fluid paths Oct. 26, 1999
5913334 Apparatus for inducing pressure drop on flue gas exhaustion Jun. 22, 1999
5640988 Vortex valves Jun. 24, 1997
5617896 Valve having a closure member for creating flow turbulence in the valve Apr. 8, 1997
5455804 Vortex chamber mud pulser Oct. 3, 1995
5311907 Vortex diode jet May. 17, 1994
5303782 Flow controlling device for a discharge system such as a drainage system Apr. 19, 1994
5230389 Fluidic oscillator drill bit Jul. 27, 1993
5197517 Valve devices Mar. 30, 1993
5080137 Vortex flow regulators for storm sewer catch basins Jan. 14, 1992
5076327 Electro-fluid converter for controlling a fluid-operated adjusting member Dec. 31, 1991
5052442 Device for controlling fluid flow Oct. 1, 1991
5027919 Fluid friction controller Jul. 2, 1991
4969481 Method for transferring short fibers Nov. 13, 1990
4917151 Fluidic apparatus Apr. 17, 1990
4889166 Vortex valves Dec. 26, 1989
4887628 Fluidic apparatus Dec. 19, 1989
4867041 Vortex amplifier driven actuator spool Sep. 19, 1989
4846224 Vortex generator for flow control Jul. 11, 1989
4834142 Flow rate controller May. 30, 1989
4819431 Method of and system for controlling a fluidic valve Apr. 11, 1989
4817863 Vortex valve flow controller in VAV systems Apr. 4, 1989
4679595 Device for controlling the flow in a pipe system Jul. 14, 1987
4632107 High-frequency jet ventilator Dec. 30, 1986
4557295 Fluidic mud pulse telemetry transmitter Dec. 10, 1985
4422476 Fluidic control devices Dec. 27, 1983
4418721 Fluidic valve and pulsing device Dec. 6, 1983
4323991 Fluidic mud pulser Apr. 6, 1982
4291395 Fluid oscillator Sep. 22, 1981

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