Anti back draft device for flue

Furnaces – With fuel treatment means – Preliminary refuse treatment means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

98 47, 98 48, 110160, F23L 1716

Patent

active

049208667

ABSTRACT:
Back draft is prevented in a conventional furnace or woodstove system in which the combustion gases are generally sufficient to generate the positive draft for combustion but occasionally fails due to pressure differences, combustion conditions or outside temperature conditions. The back draft device comprises a nozzle mounted in the flue which is connected to a duct supplying pressurized air from a fan which is passed over a heater so that heated air is injected into the flue. A flow control device comprises a housing which is divided by a transverse sheet. In a front face on one side of the divider is provided a flap valve controlling air inlet into the duct of the fan. On the other side of the divider is provided a flap valve controlling an air outlet from the outside of the building. The flow control device automatically controls whether the air for the nozzle is drawn from the interior or the exterior of the building depending upon the pressure differences. The device can be actuated by a temperature sensor in the flue.

REFERENCES:
patent: 566591 (1896-08-01), Lloyd
patent: 1604271 (1926-10-01), Friedman
patent: 1689241 (1928-10-01), Haber
patent: 2397870 (1946-04-01), Kneass, Jr.
patent: 2951457 (1960-09-01), Kneass
patent: 2979322 (1961-04-01), Dailey
patent: 3134345 (1964-05-01), King
patent: 3175552 (1965-03-01), Sutton
patent: 3527177 (1970-09-01), LaRue
patent: 3570423 (1971-03-01), Hemmingson
patent: 4149453 (1979-04-01), Reed
patent: 4262608 (1981-04-01), Jackson
patent: 4285325 (1981-08-01), Bellaff
patent: 4424792 (1984-01-01), Shimek et al.
patent: 4487137 (1984-12-01), Horvat
patent: 4512264 (1985-04-01), Crawford
patent: 4768444 (1988-09-01), De Werth et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Anti back draft device for flue does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anti back draft device for flue, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti back draft device for flue will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-822913

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.