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Class Information
Number: 137/601.11
Name: Fluid handling > Systems > Dividing into parallel flow paths with recombining > With common operator > Rotary valve > Axes of rotation parallel > Adjacent plate valves counter rotate
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8684033 |
Two-shutter valve |
Apr. 1, 2014 |
| 8196604 |
Deployable automated vent cover device |
Jun. 12, 2012 |
| 7814748 |
Exhaust bypass valve remote linkage |
Oct. 19, 2010 |
| 7712312 |
Pressure balanced swing valve for engine system |
May. 11, 2010 |
| 7089958 |
Damper vane |
Aug. 15, 2006 |
| 7011292 |
Bi-leaved valve apparatus |
Mar. 14, 2006 |
| 6568417 |
Throttle valve assembly |
May. 27, 2003 |
| 6564819 |
Fluid flow control damper assembly |
May. 20, 2003 |
| 6557826 |
Low leakage butterfly damper |
May. 6, 2003 |
| 6499310 |
Flow control device for a gas stream |
Dec. 31, 2002 |
| 6418964 |
Bearing-supported damper assembly |
Jul. 16, 2002 |
| 5944506 |
Burner assembly with tight shut-off opposed louver air damper |
Aug. 31, 1999 |
| 5842919 |
Damper actuator assembly |
Dec. 1, 1998 |
| 5765592 |
Valve |
Jun. 16, 1998 |
| 5007456 |
Closing arrangement for ducts having large cross-sectional areas, particularly flue gas ducts |
Apr. 16, 1991 |
| 4844120 |
Motorized control damper |
Jul. 4, 1989 |
| 4658857 |
Control valve with split disc |
Apr. 21, 1987 |
| 4541328 |
Damper seal apparatus |
Sep. 17, 1985 |
| 4506828 |
Reversible damper means |
Mar. 26, 1985 |
| RE31471 |
Multiple blade damper assembly |
Dec. 27, 1983 |
| 4304248 |
Damper blade operating mechanism |
Dec. 8, 1981 |
| 4275762 |
Control damper |
Jun. 30, 1981 |
| 4241647 |
Air damper valve |
Dec. 30, 1980 |
| 4207864 |
Damper |
Jun. 17, 1980 |
| 4191212 |
Multiple blade damper assembly |
Mar. 4, 1980 |
| 4076035 |
Valve construction |
Feb. 28, 1978 |
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