Heat exchanger and method of producing the same

Details Heat exchanger and method of producing the same Heat exchanger and method of producing the same

2007-02-05

2010-11-23

Flanigan, Allen J (Department: 3744)

Heat exchange

Casing or tank enclosed conduit assembly

Conduit coiled within casing

C165S181000, C165S183000

Reexamination Certificate

active

07836942

ABSTRACT:
A heat exchanger for a gas boiler for producing hot water is provided with a casing extending along a first axis and through which combustion fumes flow; a tube forming a plurality of turns along which water flows arranged inside the casing so as to form gaps between adjacent turns; a disk for guiding said fumes trough the gaps; and teeth integrally made with the tube for spacing adjacent turns apart and forming said gaps.

REFERENCES:
patent: 1945287 (1934-01-01), Monree
patent: 4276930 (1981-07-01), Weber
patent: 6321835 (2001-11-01), Damsohn et al.
patent: 2001/0031440 (2001-10-01), Fullemann et al.
patent: 2002/0092646 (2002-07-01), Kuhn et al.
patent: 2004/0261986 (2004-12-01), Insalaco
patent: 0678186 (1995-10-01), None
patent: 0814312 (1997-12-01), None
patent: 2124043 (1972-09-01), None
patent: WO 2004/090434 (2004-10-01), None
European Search Report mailed Feb. 10, 2006 in European Appln. No. 05107265.0-2301.

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