Stoves and furnaces – Hot-air furnaces – Compressed air
Reexamination Certificate
2005-08-02
2005-08-02
Gravini, Stephen (Department: 3749)
Stoves and furnaces
Hot-air furnaces
Compressed air
Reexamination Certificate
active
06923173
ABSTRACT:
Disclosed is a high efficiency hot air furnace including a heat exchanger assembly located in a heat exchange chamber through with comfort air is passed to be heated. The heat exchanger assembly includes a drum like combustion member located in the flow path of comfort air. A supplemental heat exchanger or condenser is disposed in the flow path of comfort air upstream from the combustion member. A transfer channel extends from one end of the combustion member and communicates combustion products to the condenser. The combustion member includes an insulating material on the inside portion of the cylindrical wall. A diffuser is located within the combustion member which prevents the burner flame from extending into the transfer channel. The burner includes a blower for urging combustion gases through the heat exchanging assembly. Intake air for the blower is provided by an air intake chamber.
REFERENCES:
patent: 2109876 (1938-03-01), Bard
patent: 2529574 (1950-11-01), Rush
patent: 2836169 (1958-05-01), Reilly
patent: 2902265 (1959-09-01), Dubovick
patent: 3028854 (1962-04-01), Reilly
patent: 3580237 (1971-05-01), Barsby et al.
patent: 3667451 (1972-06-01), Boucher
patent: 4037582 (1977-07-01), Moody
patent: 4182303 (1980-01-01), Muckelrath
patent: 4252520 (1981-02-01), Bratko
patent: 4289730 (1981-09-01), Tomlinson
patent: 4319557 (1982-03-01), Sietmann et al.
patent: 4336791 (1982-06-01), Kitchhen
patent: 4342359 (1982-08-01), Baker
patent: 4351276 (1982-09-01), Kremer
patent: 4478158 (1984-10-01), Smith
patent: 4515145 (1985-05-01), Tallman et al.
patent: 4557249 (1985-12-01), Sweedyk
patent: 4718401 (1988-01-01), DeLancey
patent: 4960102 (1990-10-01), Shellenberger
patent: 5313930 (1994-05-01), Kujawa et al.
patent: 5368010 (1994-11-01), Weber et al.
patent: 5437263 (1995-08-01), Ellingham et al.
patent: 5775318 (1998-07-01), Haydock et al.
Gravini Stephen
Watts Hoffman Co. LPA
LandOfFree
Hot air furnace does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hot air furnace, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot air furnace will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3458119