F - Mech Eng,Light,Heat,Weapons – 23 – N
Patent
F - Mech Eng,Light,Heat,Weapons
23
N
126/90
F23N 3/00 (2006.01) F16K 35/00 (2006.01) F23N 3/08 (2006.01)
Patent
CA 1176928
HO CHOW MEL-16 VENT DAMPER WITH EMERGENCY MANUAL OVERRIDE ABSTRACT OF THE DISCLOSURE In the event of a malfunction of the unit, the damper plate may be moved to and locked in the open position, to permit the furnace to operate. With the plate locked, the motor would normally run continuously, even when the furnace was not operating. This is because the closed position of the plate, necessary to turn off the motor, cannot be reached. A slip clutch, located between the motor shaft and the plate, has parts which slip relative to each other when the motor is running but the plate is locked. The contours and biasing of the parts causes one part to move a limited distance, in a direction opposite to normal. The motor is stopped in response to this oppositely directed movement. A bent portion of the plate positioning shaft is freely received in a recess elongated in and laterally spaced from the motor shaft for self-alignment and to permit the oppositely directed movement necessary to stop the motor.
401045
Melnor Industries Inc.
Smart & Biggar
LandOfFree
Vent damper with emergency manual override does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vent damper with emergency manual override, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vent damper with emergency manual override will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1201904