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Class Information
Number: 137/601.06
Name: Fluid handling > Systems > Dividing into parallel flow paths with recombining > With common operator > Rotary valve > Including rigid plate with flexible or resilient seal
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
8651136 Valve with a metal gasket Feb. 18, 2014
7568501 Bypass valve with flapper valve elements for a water treatment apparatus Aug. 4, 2009
5944506 Burner assembly with tight shut-off opposed louver air damper Aug. 31, 1999
5918632 Single-louver damper with double seal Jul. 6, 1999
5765592 Valve Jun. 16, 1998
5060557 Smoke damper blade seal Oct. 29, 1991
4932437 Louver dampers for use in gas turbines exhaust systems and having blades protected against becoming warped Jun. 12, 1990
4823836 Dampers with leaf spring seals Apr. 25, 1989
4766807 Damper blade seal Aug. 30, 1988
4664145 Device for delivering a pressurized medium to a rotatable part May. 12, 1987
4545566 Metal seals for damper blades Oct. 8, 1985
4493342 Double louver damper Jan. 15, 1985
4469132 Damper apparatus Sep. 4, 1984
4256143 Shut-off damper Mar. 17, 1981
4253492 System for controlling the flow of gaseous fluids Mar. 3, 1981
4249571 Air control mechanism having noise suppression means Feb. 10, 1981
4244397 Shut-off damper Jan. 13, 1981
4199898 Closure apparatus with snap-in seal strips Apr. 29, 1980
4187878 Valve having internally pressurized sealing elements Feb. 12, 1980
4175582 Isolating/pressure relief damper Nov. 27, 1979
4077432 Purged valve Mar. 7, 1978
4043258 Louver linkage seal Aug. 23, 1977











 
 
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