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Class Information
Number: 251/122
Name: Valves and valve actuation > With material guide or restrictor > Movable or resilient guide or restrictor > Adjustable guide or restrictor > Tapered metering plug
Description: Devices in which the adjustable restrictor is a tapered plug which extends into the flow passage.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7429027 |
Self-flushing needle valve |
Sep. 30, 2008 |
| 7363941 |
Fluid control valve device |
Apr. 29, 2008 |
| 7237574 |
Controlled dispersion multi-phase nozzle and method of making the same |
Jul. 3, 2007 |
| 7168678 |
Needle valve construction |
Jan. 30, 2007 |
| 7137612 |
High recovery metering valve |
Nov. 21, 2006 |
| 7121296 |
Variable orifice valve for air stream containing particulate coal |
Oct. 17, 2006 |
| 7077299 |
Dispensing faucet for a pressurized source |
Jul. 18, 2006 |
| 7044434 |
High recovery sonic gas valve |
May. 16, 2006 |
| 7036788 |
Directly controlled proportional pressure limiting valve |
May. 2, 2006 |
| 7036790 |
Vacuum pressure regulating valve |
May. 2, 2006 |
| 7028983 |
Coupling member of a pipe coupling and valve body used in a coupling member |
Apr. 18, 2006 |
| 7007917 |
Electromagnetic control valve |
Mar. 7, 2006 |
| 7004448 |
Trim insert for choke assembly |
Feb. 28, 2006 |
| 6991212 |
Needle valve |
Jan. 31, 2006 |
| 6981688 |
Flow control device |
Jan. 3, 2006 |
| 6962270 |
Dosing valve with flow rate sensor for a beverage dispenser |
Nov. 8, 2005 |
| 6926249 |
Precision modulating globe valve |
Aug. 9, 2005 |
| 6923203 |
Variable orifice valve for airstream containing particulate coal |
Aug. 2, 2005 |
| 6896237 |
Control valve for a water closet |
May. 24, 2005 |
| 6892818 |
Interchangeable choke assembly |
May. 17, 2005 |
| 6889702 |
Replaceable valve seat ring with enhanced flow design |
May. 10, 2005 |
| 6877715 |
Vacuum regulating valve |
Apr. 12, 2005 |
| 6820857 |
Needle valve with soft tip stem |
Nov. 23, 2004 |
| 6802487 |
Flow regulating apparatus for a fluid, in particular a pneumatic choke valve |
Oct. 12, 2004 |
| 6786231 |
Fluid flow regulator with restrictor pin |
Sep. 7, 2004 |
| 6769666 |
Variable port valve plug |
Aug. 3, 2004 |
| 6748965 |
Double directional check valve and flow restrictor combination |
Jun. 15, 2004 |
| 6732997 |
Control valve for a water closet |
May. 11, 2004 |
| 6729346 |
Pneumatic valve |
May. 4, 2004 |
| 6730232 |
Process and device for separating impurities from a suspension by flotation |
May. 4, 2004 |
| 6698449 |
Replaceable valve seat ring with enhanced flow design |
Mar. 2, 2004 |
| 6662869 |
Ceramic components for high pressure oil wells |
Dec. 16, 2003 |
| 6619612 |
Extended range proportional valve |
Sep. 16, 2003 |
| 6561480 |
Motor operated valve |
May. 13, 2003 |
| 6557584 |
Flow control and flow rate control mechanisms for use in brewing machines with fluidly connected chambers |
May. 6, 2003 |
| 6494229 |
Pilot-type two-port vacuum valve |
Dec. 17, 2002 |
| 6478200 |
Beverage dispense device |
Nov. 12, 2002 |
| 6457614 |
Dispensing faucet for a pressurized source |
Oct. 1, 2002 |
| 6409055 |
Filling valve |
Jun. 25, 2002 |
| 6349920 |
Poppet valve shaping for quick valve opening |
Feb. 26, 2002 |
| 6293514 |
Flow regulation valve |
Sep. 25, 2001 |
| 6186470 |
Filling valve |
Feb. 13, 2001 |
| 6158714 |
Adjustable orifice valve |
Dec. 12, 2000 |
| 6145807 |
By-pass stud with integral safety valve |
Nov. 14, 2000 |
| 6126244 |
Pressure control device for electropneumatic brake systems of vehicles, particularly utility vehicles |
Oct. 3, 2000 |
| 6016832 |
Valve for controlling gas mass flow |
Jan. 25, 2000 |
| 6003535 |
Micro control valve and apparatus and method for making semiconductors with high purity process gas |
Dec. 21, 1999 |
| 5988202 |
Pre-set maximum flow metering and mixing valves |
Nov. 23, 1999 |
| 5970996 |
Throttling valve for compressed air or the like and its application to an airjet loom |
Oct. 26, 1999 |
| 5921275 |
Apparatus for reducing noise generated by the flow of water through a water valve |
Jul. 13, 1999 |
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