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Class Information
Number: 138/40
Name: Pipes and tubular conduits > With flow regulators and/or baffles > Restrictors
Description: Pipes in which the means restricts the flow in the pipe, but does not cut off entirely.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7540469 |
Microelectromechanical flow control apparatus |
Jun. 2, 2009 |
| 7506666 |
Anti-drip ring and drip seal |
Mar. 24, 2009 |
| 7469709 |
Three-wedge double block isolation chamber |
Dec. 30, 2008 |
| 7431052 |
Flow restrictor and system for delivering a flow of liquid in a microcapillary |
Oct. 7, 2008 |
| 7431045 |
Flow restrictor |
Oct. 7, 2008 |
| 7334602 |
Apparatus for controlling flow rate of gases used in semiconductor device by differential pressure |
Feb. 26, 2008 |
| 7328592 |
Circuit for the generation of cold or heat |
Feb. 12, 2008 |
| 7306170 |
Lawn sprinkler flow control device and tool therefor |
Dec. 11, 2007 |
| 7303730 |
Waste gas treating device having flow regulator |
Dec. 4, 2007 |
| 7207712 |
Device and method for creating hydrodynamic cavitation in fluids |
Apr. 24, 2007 |
| 7131456 |
Mass flow controller |
Nov. 7, 2006 |
| 7111799 |
Narrow diameter needle having reduced inner diameter tip |
Sep. 26, 2006 |
| 7089963 |
Flow laminarizing device |
Aug. 15, 2006 |
| 7051765 |
Balanced orifice plate |
May. 30, 2006 |
| 7043937 |
Fluid diode expansion device for heat pumps |
May. 16, 2006 |
| 6953396 |
Fabric flow restriction and method for conveying a volume of air |
Oct. 11, 2005 |
| 6886600 |
Piping device and cutting oil coater using the same |
May. 3, 2005 |
| 6863088 |
Replaceable oriface unit |
Mar. 8, 2005 |
| 6840281 |
Liquid flow pressure reducer and method |
Jan. 11, 2005 |
| 6827107 |
Method for manufacturing a throttle |
Dec. 7, 2004 |
| 6800005 |
Exhaust system for a small watercraft |
Oct. 5, 2004 |
| 6799602 |
Combination fitting |
Oct. 5, 2004 |
| 6776439 |
Flange plates for fluid port interfaces |
Aug. 17, 2004 |
| 6722780 |
Preparation of liquid dispersions |
Apr. 20, 2004 |
| 6698455 |
Fluid multieconomizer device |
Mar. 2, 2004 |
| 6696116 |
Device and method for flowing pellets |
Feb. 24, 2004 |
| 6688378 |
Heat exchanger tube with integral restricting and turbulating structure |
Feb. 10, 2004 |
| 6688423 |
Fluid-borne noise suppression |
Feb. 10, 2004 |
| 6615874 |
Stacked disk valve trim |
Sep. 9, 2003 |
| 6615873 |
Choke valve for automatic transmission |
Sep. 9, 2003 |
| 6609733 |
Differential pressure fitting |
Aug. 26, 2003 |
| 6598462 |
Air flow measurement |
Jul. 29, 2003 |
| 6595682 |
Mixing element for a flange transition in a pipeline |
Jul. 22, 2003 |
| 6594017 |
Measuring sensor positioning |
Jul. 15, 2003 |
| 6539977 |
Self draining orifice for pneumatic lines |
Apr. 1, 2003 |
| 6530684 |
Preparation of liquid dispersions |
Mar. 11, 2003 |
| 6502602 |
Methods and apparatus for testing fluid compressors |
Jan. 7, 2003 |
| 6457236 |
Apparatus and method for restricting fluid flow in a planar manifold |
Oct. 1, 2002 |
| 6357483 |
Flow controller |
Mar. 19, 2002 |
| 6279613 |
Energy attenuation apparatus for a system conveying liquid under pressure and method of attenuating energy in such a system |
Aug. 28, 2001 |
| 6269841 |
Energy attenuation apparatus for a system conveying liquid under pressure and method of attenuating energy in such a system |
Aug. 7, 2001 |
| 6123108 |
Energy attenuation apparatus for a system conveying liquid under pressure and method of attenuating energy in such a system |
Sep. 26, 2000 |
| 6095196 |
Tortuous path fluid pressure reduction device |
Aug. 1, 2000 |
| 6068024 |
Combined fluid intake/discharge device and support means for hydraulic roller |
May. 30, 2000 |
| 6036473 |
Heavy oil emulsified fuel combustion apparatus |
Mar. 14, 2000 |
| 6035897 |
Method and apparatus for conducting sonochemical reactions and processes using hydrodynamic cavitation |
Mar. 14, 2000 |
| 6024129 |
Production efficient venturi insert |
Feb. 15, 2000 |
| 6012492 |
Method and apparatus for conducting sonochemical reactions and processes using hydrodynamic cavitation |
Jan. 11, 2000 |
| 5983946 |
Energy attenuation apparatus for a system conveying liquid under pressure and method of attenuating energy in such a system |
Nov. 16, 1999 |
| 5971601 |
Method and apparatus of producing liquid disperse systems |
Oct. 26, 1999 |
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