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Class Information
Number: 251/124
Name: Valves and valve actuation > With material guide or restrictor > Valve at point of greatest restriction > Venturi restrictor
Description: Subject matter wherein the valve is placed in the throat of a Venturi tube and the point of valve location coincides with the point of greatest restriction of the Venturi.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7044434 |
High recovery sonic gas valve |
May. 16, 2006 |
| 7044435 |
System for influencing the rheological properties of a transportable material |
May. 16, 2006 |
| 6817594 |
Grooved valve seat with inlay |
Nov. 16, 2004 |
| 6666433 |
Grooved valve seat with inlay |
Dec. 23, 2003 |
| 6511041 |
Planar-divergent valve insert |
Jan. 28, 2003 |
| 6446664 |
Erosion resistant wear sleeve for high pressure valves |
Sep. 10, 2002 |
| 6250602 |
Positive shut-off metering valve with axial thread drive |
Jun. 26, 2001 |
| 6109293 |
Split venturi, axially-rotated valve |
Aug. 29, 2000 |
| 6026845 |
Flow, split Venturi, axially-rotated valve |
Feb. 22, 2000 |
| 6016832 |
Valve for controlling gas mass flow |
Jan. 25, 2000 |
| 5349982 |
Control mechanism for water blasting gun |
Sep. 27, 1994 |
| 4593881 |
Electronic expansion valve |
Jun. 10, 1986 |
| 4512548 |
Valve with a device for the attenuation of acoustic vibrations self-excited by the working medium |
Apr. 23, 1985 |
| 4506860 |
Flow control valve, especially for use in controlling the operation of steam turbines |
Mar. 26, 1985 |
| 4474356 |
Control valve with integral streamlined seating means |
Oct. 2, 1984 |
| 4446883 |
End loaded valve |
May. 8, 1984 |
| 4446887 |
Variable high pressure choke |
May. 8, 1984 |
| 4413646 |
Streamline coal slurry letdown valve |
Nov. 8, 1983 |
| 4383553 |
Visbreaker letdown valve |
May. 17, 1983 |
| 4326697 |
Valves with non-lubricated plug |
Apr. 27, 1982 |
| 4311166 |
Valve assembly for use with high temperature and high pressure fluids |
Jan. 19, 1982 |
| 4300749 |
Throttle valve |
Nov. 17, 1981 |
| 4176636 |
Internal combustion engine having exhaust emission control system |
Dec. 4, 1979 |
| 4123238 |
Flow-control nozzle for flue-gas scrubber |
Oct. 31, 1978 |
| 3952776 |
Fluid flow device |
Apr. 27, 1976 |
| 3942553 |
Digital fluid flow control system with trim adjustment |
Mar. 9, 1976 |
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