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Class Information
Number: 137/625.32
Name: Fluid handling > Systems > Multi-way valve unit > Dividing into parallel flow paths with recombining > Rotary > Plug
Description: Devices in which the valve unit is a rotary plug.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7458386 |
Manual gas valve with natural/LP gas conversion capability |
Dec. 2, 2008 |
| 7360611 |
Flow system for a hydraulic choke solids strainer |
Apr. 22, 2008 |
| 7322375 |
High bandwidth rotary servo valves |
Jan. 29, 2008 |
| 7278448 |
Rotary ball valve assembly |
Oct. 9, 2007 |
| 7275606 |
Solids strainer system for a hydraulic choke |
Oct. 2, 2007 |
| 7234488 |
Valve assembly and method with slotted plates and spherical ball plug |
Jun. 26, 2007 |
| 7178782 |
Quiet opening ball valve |
Feb. 20, 2007 |
| 7156122 |
Rotary ball valve assembly |
Jan. 2, 2007 |
| 7143782 |
Pressure regulator module for controlling a gas |
Dec. 5, 2006 |
| 7117894 |
Ball valve with high damping of the noise due to fluid passage |
Oct. 10, 2006 |
| 7011109 |
Drag ball valve |
Mar. 14, 2006 |
| 6983925 |
Rotary barrel gate valve |
Jan. 10, 2006 |
| 6974116 |
Rotary ball valve assembly |
Dec. 13, 2005 |
| 6923210 |
Rotary drag valve |
Aug. 2, 2005 |
| 6874486 |
Supercharger with multiple backflow ports for noise control |
Apr. 5, 2005 |
| 6868865 |
Rotary drag valve |
Mar. 22, 2005 |
| 6834675 |
Integrated multipurpose caged valve |
Dec. 28, 2004 |
| 6810664 |
Slotted spool valve |
Nov. 2, 2004 |
| 6675832 |
Blowdown valve |
Jan. 13, 2004 |
| 6651697 |
Fitting, especially a tap cock |
Nov. 25, 2003 |
| 6540206 |
Bidirectional ball valve particularly for ecological frigorific gases |
Apr. 1, 2003 |
| 6527194 |
Flow control damper |
Mar. 4, 2003 |
| 6273133 |
Fluid flow rate switching device |
Aug. 14, 2001 |
| 6240959 |
Hydraulic safety fuse device |
Jun. 5, 2001 |
| 6085787 |
Control valve |
Jul. 11, 2000 |
| 6029702 |
Valve with internal diffuser |
Feb. 29, 2000 |
| 6024125 |
Rotary valve |
Feb. 15, 2000 |
| 6021812 |
Ball plug valve |
Feb. 8, 2000 |
| 5957377 |
Flow control valve and hot-water type heater apparatus employing the same |
Sep. 28, 1999 |
| 5950664 |
Valve with improved combination bearing support and seal |
Sep. 14, 1999 |
| 5937901 |
Rotary noise attenuating valve |
Aug. 17, 1999 |
| 5890505 |
Low noise ball valve assembly with downstream airfoil insert |
Apr. 6, 1999 |
| 5799695 |
Flow regulating valve of the ball or plug type |
Sep. 1, 1998 |
| 5771929 |
Low noise ball valve assembly with airfoil insert |
Jun. 30, 1998 |
| 5765588 |
Fluid flow control device particularly useful as a pressure regulator |
Jun. 16, 1998 |
| 5758689 |
Control valve with partial flow diffuser |
Jun. 2, 1998 |
| 5687755 |
Equipment comprising a condensate trap |
Nov. 18, 1997 |
| 5685338 |
Shut-off device |
Nov. 11, 1997 |
| 5680889 |
Low noise ball valve assembly |
Oct. 28, 1997 |
| 5674461 |
Exhaust device |
Oct. 7, 1997 |
| 5669415 |
Shut-off device of the double block-and-bleed type |
Sep. 23, 1997 |
| 5623966 |
Flow control choke with shutoff seal |
Apr. 29, 1997 |
| 5613639 |
On/off control valve for a shower head |
Mar. 25, 1997 |
| 5524863 |
Quarter turn rotatable flow control valve |
Jun. 11, 1996 |
| 5522416 |
Pneumatic pressure regulation system |
Jun. 4, 1996 |
| 5511584 |
Low noise rotary control valve |
Apr. 30, 1996 |
| 5509446 |
Ball valve or plug valve provided with an insert |
Apr. 23, 1996 |
| 5445187 |
Condensate traps |
Aug. 29, 1995 |
| 5437305 |
Flow control valve |
Aug. 1, 1995 |
| 5431815 |
Drainage and coupling adapter for a fluid conduit |
Jul. 11, 1995 |
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