F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 13/14 (2006.01) F15B 15/14 (2006.01) F16K 1/22 (2006.01) F16K 31/122 (2006.01)
Patent
CA 2380771
A fluid flow control damper assembly having a damper vane and a piston actuator is relatively easy to install when the outer surface of a duct is inaccessible. The piston actuator includes a powder metal piston, lacking an elastomeric (for example, rubber) seal, that is closely received within a glass cylinder. The glass cylinder has a fitting that closes one end of the cylinder and is connectable to a pneumatic control system. A drive rod is connected between the piston and the damper vane to move the damper vane between an open position and a closed position.
Smart & Biggar
Zelczer Alex
LandOfFree
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