Stoves and furnaces – Dampers – Electric
Patent
1996-03-18
1998-03-31
Jones, Larry
Stoves and furnaces
Dampers
Electric
126285R, 126307A, 126 80, F23L 300
Patent
active
057326924
ABSTRACT:
An integral vent damper/hood apparatus for regulating draft in a flue of a hot water heater includes a damper support having a hemispherical dome, a congruent cylindrical portion with a plurality of openings therein for passage of flue gas therethrough, and a bottom support. A coaxial faceted guide is disposed between the hemispherical dome and the bottom support with a flue gas floatable damper disposed between the hemispherical dome and the bottom support and moveable along the coaxial faceted guide in response to flue gas exiting the hot water heater flue. The damper includes a coaxial circular aperture therein for enabling the movement of the damper along the faceted guide with contact occurring only at intersections of the guide facets. A hood is provided for conducting flue gas passing through said damper support into an exhaust flue along with a fixture for coaxially attaching the hood and damper support to the hot water heater flue.
REFERENCES:
patent: 4770160 (1988-09-01), Schimmeyer
patent: 5239947 (1993-08-01), Schimmeyer
Hackler Walter A.
Jones Larry
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