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Class Information
Number: 138/44
Name: Pipes and tubular conduits > With flow regulators and/or baffles > Restrictors > Central path
Description: Devices in which the path of flow of the fluid is centrally of the tube.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7607594 |
Nozzle apparatus and methods for providing a stream for ultrasonic testing |
Oct. 27, 2009 |
| 7516761 |
Flow rectifier for an air mass sensor |
Apr. 14, 2009 |
| 7497772 |
Quick change restrictor plate |
Mar. 3, 2009 |
| 7497234 |
Storm water flow restriction method and apparatus |
Mar. 3, 2009 |
| 7449159 |
Liquid processing device and method of manufacturing processed liquid |
Nov. 11, 2008 |
| 7399412 |
Guide means for centrifugal force separators, especially cyclone separators |
Jul. 15, 2008 |
| 7380572 |
Energy attenuation apparatus for a conduit conveying liquid under pressure, system incorporating same, and method of attenuating energy in a conduit |
Jun. 3, 2008 |
| 7370675 |
Flow conditioner for a fluid transport pipe |
May. 13, 2008 |
| 7363940 |
Flow-rate restrictor insert for orifice expansion device |
Apr. 29, 2008 |
| 7357619 |
Cross over flow diverter for noise reduction |
Apr. 15, 2008 |
| 7325570 |
Method and apparatus for noise suppression in a fluid line |
Feb. 5, 2008 |
| 7306170 |
Lawn sprinkler flow control device and tool therefor |
Dec. 11, 2007 |
| 7237574 |
Controlled dispersion multi-phase nozzle and method of making the same |
Jul. 3, 2007 |
| 7234491 |
Device for damping water hammer |
Jun. 26, 2007 |
| 7222643 |
Internal post flow control |
May. 29, 2007 |
| 7162962 |
Pneumatic distribution system for air seeders |
Jan. 16, 2007 |
| 7114525 |
Method and apparatus for reduction of fluid-borne noise in hydraulic systems |
Oct. 3, 2006 |
| 7104521 |
Dual chamber orifice fitting valve |
Sep. 12, 2006 |
| 7089963 |
Flow laminarizing device |
Aug. 15, 2006 |
| 7086417 |
Gas flow control device |
Aug. 8, 2006 |
| 7063107 |
Dual chamber orifice fitting body |
Jun. 20, 2006 |
| 7051765 |
Balanced orifice plate |
May. 30, 2006 |
| 7033069 |
Mixing device |
Apr. 25, 2006 |
| 7017610 |
Damper for hydraulic systems |
Mar. 28, 2006 |
| 7007718 |
Energy attenuation apparatus for a conduit conveying liquid under pressure, system incorporating same, and method of attenuating energy in a conduit |
Mar. 7, 2006 |
| 6971409 |
Method and apparatus for the treatment of fluids |
Dec. 6, 2005 |
| 6941973 |
Industrial vapor conveyance and deposition |
Sep. 13, 2005 |
| 6880579 |
Noise reduction device for fluid flow systems |
Apr. 19, 2005 |
| 6871666 |
Bi-directional dual chamber orifice fitting |
Mar. 29, 2005 |
| 6863088 |
Replaceable oriface unit |
Mar. 8, 2005 |
| 6848477 |
Fuel pressure damping system and method |
Feb. 1, 2005 |
| 6827107 |
Method for manufacturing a throttle |
Dec. 7, 2004 |
| 6810904 |
Lavatory flush tank silent-operating fill device |
Nov. 2, 2004 |
| 6810683 |
Thermostatic expansion valve exit flow silencer device |
Nov. 2, 2004 |
| 6807986 |
Noise reduction device for fluid flow systems |
Oct. 26, 2004 |
| 6799602 |
Combination fitting |
Oct. 5, 2004 |
| 6708727 |
Pipe structure of branch pipe line |
Mar. 23, 2004 |
| 6701963 |
Flow conditioner |
Mar. 9, 2004 |
| 6698455 |
Fluid multieconomizer device |
Mar. 2, 2004 |
| 6695010 |
Segmented ceramic choke |
Feb. 24, 2004 |
| 6637542 |
Power steering system with noise reduction |
Oct. 28, 2003 |
| 6594017 |
Measuring sensor positioning |
Jul. 15, 2003 |
| 6548760 |
One-piece seamless reducer |
Apr. 15, 2003 |
| 6546839 |
Flow regulation device |
Apr. 15, 2003 |
| 6539977 |
Self draining orifice for pneumatic lines |
Apr. 1, 2003 |
| 6539968 |
Fluid flow controller and method of operation |
Apr. 1, 2003 |
| 6523573 |
Flash tube device |
Feb. 25, 2003 |
| 6505648 |
Liquid treatment by cavitation |
Jan. 14, 2003 |
| 6502602 |
Methods and apparatus for testing fluid compressors |
Jan. 7, 2003 |
| 6415768 |
Diesel engine fuel injection pipe |
Jul. 9, 2002 |
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