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Class Information
Number: 137/311
Name: Fluid handling > Reversing valves - regenerative furnace type > Rotary reversing valve
Description: Reversing valves wherein the valve is mounted for rotating or oscillating motion.

Patents under this class:

Patent Number Title Of Patent Date Issued
7740026 Thermal storage type gas treating apparatus Jun. 22, 2010
7325562 Heated seal air for valve and regenerative thermal oxidizer containing same Feb. 5, 2008
7308904 Electric gear motor drive for switching valve Dec. 18, 2007
7152620 Flow-reversing valve Dec. 26, 2006
7117882 Valve for changing the direction of flow of a fluid in pipe conduits Oct. 10, 2006
6978977 Dual lift system Dec. 27, 2005
6899121 Switching valve seal May. 31, 2005
6892750 Switching valve May. 17, 2005
6783111 Dual lift system Aug. 31, 2004
6749815 Switching valve seal Jun. 15, 2004
6298877 Distributing valve device for heat accumulation type combustion system Oct. 9, 2001
6261092 Switching valve Jul. 17, 2001
5997277 Method and a device for recovery of energy from media containing combustible substances even at low concentration Dec. 7, 1999
5983986 Regenerative bed heat exchanger and valve therefor Nov. 16, 1999
4688626 Ventilator unit Aug. 25, 1987
4126419 Combustion device for burning waste gases containing combustible and noxious matters Nov. 21, 1978

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