Electric resistance heating devices – Heating devices – Fluid-in-circuit type heater
Reexamination Certificate
2005-09-16
2008-12-30
Campbell, Thor S (Department: 3742)
Electric resistance heating devices
Heating devices
Fluid-in-circuit type heater
C392S465000
Reexamination Certificate
active
07471882
ABSTRACT:
A removable heat inducer may be used in either a heated regulator or a fluid heater. The removable heat inducer has various embodiments. In one embodiment, helical threads are formed on the outside surface of the inducer. The inducer expands when heated causing the crest of the threads to come into contact with the inside surface of a heating chamber to form a spiral fluid passageway which promotes better heat exchange between the fluid and the heating element. In a first alternative embodiment of the inducer, a series of walled partitions and slots are formed on the outside surface of the inducer, which likewise expand and contact the inside surface of the heating chamber to form a dead head flow passageway. Again, the purpose of the passageway is to promote efficient heat exchange. In a second alternative embodiment of the removable heat inducer, a plurality of rods are placed in the heating chamber to promote heat exchange. The spaces between the rods form passageways for the fluid. The removable heat inducer may be used in a heated regulator or a fluid heater.
REFERENCES:
patent: 2775683 (1956-12-01), Kleist
patent: 3653339 (1972-04-01), Steele
patent: 3835294 (1974-09-01), Krohn et al.
patent: 4346611 (1982-08-01), Welker
patent: 4387592 (1983-06-01), Welker
patent: 4458655 (1984-07-01), Oza
patent: 4465922 (1984-08-01), Kolibas
patent: 4594904 (1986-06-01), Richter
patent: 4631967 (1986-12-01), Welker
patent: 5224510 (1993-07-01), Pericles
patent: 5265318 (1993-11-01), Shero
patent: 5520211 (1996-05-01), Schonstein et al.
patent: 5747102 (1998-05-01), Smith et al.
patent: 5907107 (1999-05-01), Welker
patent: 6546921 (2003-04-01), Callahan
patent: 6804459 (2004-10-01), Raghavan et al.
patent: 7248792 (2007-07-01), Mihara
patent: 7286752 (2007-10-01), Gourand
patent: 2007/0235086 (2007-10-01), Hornby et al.
Green Thomas S.
Peebles Tracy Dean
Campbell Thor S
Husch Blackwell Sanders LLP
Welker, Inc.
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