Stoves and furnaces – Fireplaces or accessories – With filter
Patent
1995-07-24
1996-10-22
Look, Edward K.
Stoves and furnaces
Fireplaces or accessories
With filter
126307R, 126539, 110217, F24B 1191
Patent
active
055666671
ABSTRACT:
This invention discloses a filter-and-fan assembly that can be installed into new fireplaces or retrofitted into existing fireplaces, for filtering dust and smoke out of the hot exhaust gases that are created when wood is burned in fireplaces. This filter assembly is provided with a mechanism that can move the filter out of the flue channel (i.e., the chimney or other exhaust outlet) if the filter becomes clogged by creosote and/or smoke particles. If desired, the mechanism that moves the filter out of the flue path can be automated under the control of a device such as an electronic smoke detector mounted in front of the fireplace, above the fireplace opening. Alternately, a thin filter-paper type of filtering element can be continuously scrolled through the flue channel. A rotating fan blade can be provided directly above the filter element, to ensure that exhaust gases are actively drawn up through the filter. These means for avoiding blockage or hindrance of the flue channel can overcome a major obstacle that, until now, has completely blocked the development and adoption of smoke filters for conventional open-hearth fireplaces. This invention also discloses a convenient and clean method of opening and closing a fireplace damper without having to reach into a sooty fireplace, by inserting a solid damper plate (rather than a filter element) into a filter support bracket in a flue channel.
REFERENCES:
patent: 926266 (1909-06-01), Livesey
patent: 1752007 (1930-03-01), Kline
patent: 2296354 (1942-09-01), Kraus
patent: 2703566 (1955-03-01), Fogel et al.
patent: 3049113 (1962-08-01), Northwood et al.
patent: 3409002 (1968-11-01), Vackar
patent: 3608278 (1971-09-01), Greenspan
patent: 3706182 (1972-12-01), Sargent
patent: 4156418 (1979-05-01), Berg
patent: 4470834 (1984-09-01), Fasanaro et al.
patent: 4485797 (1984-12-01), D'Alessandro
patent: 4649808 (1987-03-01), Ward et al.
patent: 4673658 (1987-06-01), Gadkaree et al.
patent: 4675029 (1987-06-01), Norman et al.
patent: 4909161 (1990-03-01), Germain
Kelly Patrick D.
Lee Michael S.
Look Edward K.
LandOfFree
Smoke filter with automated clogging prevention for open-hearth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Smoke filter with automated clogging prevention for open-hearth , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Smoke filter with automated clogging prevention for open-hearth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2351645