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Class Information
Number: 261/DIG.13
Name: Gas and liquid contact apparatus > Desuperheaters

Patents under this class:

Patent Number Title Of Patent Date Issued
8469341 Desuperheater seat-ring apparatus Jun. 25, 2013
7850149 Pressure blast pre-filming spray nozzle Dec. 14, 2010
7654509 Desuperheater spray nozzle Feb. 2, 2010
7028994 Pressure blast pre-filming spray nozzle Apr. 18, 2006
6746001 Desuperheater nozzle Jun. 8, 2004
6742773 Steam pressure reducing and conditioning valve Jun. 1, 2004
6189871 Steam introduction device in a power plant Feb. 20, 2001
5692684 Injection cooler Dec. 2, 1997
5607626 Spring assisted multi-nozzle desuperheater Mar. 4, 1997
5496505 Aerating nozzle for aerating liquids containing organic substances Mar. 5, 1996
5439619 Steam conditioning butterfly valve Aug. 8, 1995
5385121 Steam desuperheater Jan. 31, 1995
5380470 Method and apparatus for reducing the pressure and temperature of steam in a steam conditioning valve Jan. 10, 1995
5338496 Plate type pressure-reducting desuperheater Aug. 16, 1994
5336451 Desuperheater apparatus and method Aug. 9, 1994
5290486 Desuperheater for controllable injection of cooling water in a steam or gas line Mar. 1, 1994
5262091 Steam injector system Nov. 16, 1993
5246633 Device for collecting used steam Sep. 21, 1993
5240651 Adiabatic modulator proportioning refrigeration controller desuperheater Aug. 31, 1993
5041246 Two stage variable annulus spray attemperator method and apparatus Aug. 20, 1991
4909445 Desuperheat flow nozzle Mar. 20, 1990
4880447 Method and apparatus for steam flow venting incorporating air educting means Nov. 14, 1989
4828767 Method and system for installing steam desuperheaters May. 9, 1989
4505865 Steam-pressure reduction valve Mar. 19, 1985
4442047 Multi-nozzle spray desuperheater Apr. 10, 1984
4421069 Desuperheater spray liner assembly Dec. 20, 1983
4278619 Steam throttle valve Jul. 14, 1981
4130611 Attemperator Dec. 19, 1978
4071586 Variable orifice desuperheater Jan. 31, 1978
4011287 Steam conditioning valve Mar. 8, 1977
3981946 Perforated plate of steam reforming valve Sep. 21, 1976
3931371 Attemperator Jan. 6, 1976

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