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Class Information
Number: 261/DIG.15
Name: Gas and liquid contact apparatus > Duct humidifiers
Description:










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8490951 High pressure humidifier Jul. 23, 2013
8302943 Humidifier components for pad access Nov. 6, 2012
8292270 Compact humidifier Oct. 23, 2012
8231112 Humidifier with field reconfigurable bypass feature Jul. 31, 2012
8181943 Humidifier May. 22, 2012
8079575 Steam tube connection for steam humidifier Dec. 20, 2011
8006962 Humidifier with louvered air intake Aug. 30, 2011
7980535 Demand activated steam dispersion system Jul. 19, 2011
7934702 High pressure humidifier May. 3, 2011
7871062 Microwave humidifier Jan. 18, 2011
7673859 Twist locking connection for steam humidifier Mar. 9, 2010
7673858 Low pressure steam humidifier Mar. 9, 2010
7552914 High pressure humidifier Jun. 30, 2009
7066452 Humidifier with reverse osmosis filter Jun. 27, 2006
6880814 Process gas conditioning for tobacco dryers Apr. 19, 2005
6824127 Thimble-type stream injection humidifier and quick response steam generator Nov. 30, 2004
6588734 Humidifier with swingable cover Jul. 8, 2003
6367782 Water distributor Apr. 9, 2002
6354572 Flow-through humidifier Mar. 12, 2002
6318706 Device for compressing a compressible fluid Nov. 20, 2001
6227526 Steam distribution device and method May. 8, 2001
6206348 Evaporative cooler for a gas turbine engine Mar. 27, 2001
6168139 Air flow activated control unit for a furnace Jan. 2, 2001
6092794 Secondary air humidification handler Jul. 25, 2000
6065740 Steam distribution device and method May. 23, 2000
5965068 Reversible humidifier housing Oct. 12, 1999
5942163 Low pressure jacketed steam manifold Aug. 24, 1999
5896751 Air conditioner having humidifying function Apr. 27, 1999
5855823 Steam humidifier Jan. 5, 1999
5853625 Water distribution tray for a pad-type humidifier unit Dec. 29, 1998
5806323 Adsorbent based air conditioning system Sep. 15, 1998
5765544 Flow-through humidifier for mobile home furnace Jun. 16, 1998
5702648 Self-contained room air humidifier Dec. 30, 1997
5653919 Humidification system Aug. 5, 1997
5407604 Humidifier using a neubilizer Apr. 18, 1995
5368784 Scoop humidifier Nov. 29, 1994
5289696 Modular evaporative humidification device Mar. 1, 1994
5277849 Rapid absorption steam humidifying system Jan. 11, 1994
5199486 Coated heat exchanger for humidifier Apr. 6, 1993
5171486 Rotating humidifier Dec. 15, 1992
5140667 Electric steam humidifier for mounting on the horizontal bottom wall or vertical side wall of an air duct of a forced air furnace Aug. 18, 1992
5075047 Spray pad humidifier Dec. 24, 1991
5037586 Universally mounted humidifier Aug. 6, 1991
4986937 Central air duct scooper humidifier Jan. 22, 1991
4913856 Humidifier system Apr. 3, 1990
4741871 Free flow humidifier May. 3, 1988
4738805 Humidifier Apr. 19, 1988
4564375 Humidification apparatus Jan. 14, 1986
4540530 Humidifier pad Sep. 10, 1985
4490311 Drum humidifier Dec. 25, 1984

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