F - Mech Eng,Light,Heat,Weapons – 23 – L
Patent
F - Mech Eng,Light,Heat,Weapons
23
L
110/69, 26/74, 1
F23L 11/00 (2006.01) F16L 55/10 (2006.01) F23L 13/02 (2006.01) F23N 3/08 (2006.01)
Patent
CA 1122073
AUTOMATIC DAMPER FOR FURNACE VENT PIPE ABSTRACT OF THE DISCLOSURE An improved automatic damper for furnace vent pipes is disclosed. The damper is part of a mounting mechanism which is installed in an existing furnace vent pipe and attached to a motor for operation of the damper. The motor is secured to a mounting bracket which in turn is secured to a collar mounting bracket which has two sections and is removably secured around the existing vent pipe. One section of the collar mounting bracket has an elongated slot which is used as a template for preparing an access slot in the pipe for the damper. Both of the sections have pilot holes in them which are used to make corresponding pilot holes in the vent pipe. After the slot and pilot holes are prepared, the two sections are removed and the damper is installed in the slot in the vent pipe. Thereafter, the two sections of the collar mounting brackets are reinstalled on the vent pipe, but in opposite positions thereby covering the access slot and securing the damper in place. The motor and thus the operation of the damper is controlled by the operation of the furnace motor.
344605
Macrae & Co.
Velasquez Robert L.
LandOfFree
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