Electric resistance heating devices – Heating devices – Continuous flow type fluid heater
Reexamination Certificate
2005-09-06
2005-09-06
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Continuous flow type fluid heater
C392S441000, C015S320000
Reexamination Certificate
active
06941064
ABSTRACT:
A heater for fluids including a housing made of a non-metallic material and having an internal cavity. The housing has an inlet and an outlet, each of which are in fluid communication with the internal cavity. An elongated electrical heating element is disposed within the cavity for heating fluid flowing through the cavity. The heating element has a generally circular cross-sectional shape and has a U-shaped portion disposed in the cavity. The electrical heating element has electrical connectors at opposite ends extending through the housing. The electrical heating element has a titanium outer surface.
REFERENCES:
patent: 2775683 (1956-12-01), Kleist
patent: 3088017 (1963-04-01), Schomann
patent: 3835294 (1974-09-01), Krohn et al.
patent: 3890143 (1975-06-01), Skoglund et al.
patent: 4085308 (1978-04-01), Youngquist
patent: 4182948 (1980-01-01), Markum et al.
patent: 4185187 (1980-01-01), Rogers
patent: 4308636 (1982-01-01), Davis
patent: 4762980 (1988-08-01), Insley
patent: 4924069 (1990-05-01), Giordani
patent: 5220638 (1993-06-01), Moore et al.
patent: 5396574 (1995-03-01), Base et al.
patent: 5536478 (1996-07-01), Lipp et al.
patent: 5875283 (1999-02-01), Yane et al.
patent: 5963580 (1999-10-01), Eckert
patent: 5978550 (1999-11-01), Rochelle
patent: 6080973 (2000-06-01), Thweatt, Jr.
patent: 6131237 (2000-10-01), Kasper et al.
patent: 6192549 (2001-02-01), Kasen et al.
patent: 6621985 (2003-09-01), Thweatt, Jr.
patent: 2002/0146244 (2002-10-01), Thweatt, Jr.
“Tubular Heaters”, Ogden Manufacturing Co., www.ogdenmfg.com.
Campbell Thor S.
Price Heneveld Cooper DeWitt & Litton LLP
Sherwood-Templeton Coal Company, Inc.
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