Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Reexamination Certificate
2005-07-19
2005-07-19
Gravini, Stephen (Department: 3749)
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
C432S105000, C431S351000, C126S09100A
Reexamination Certificate
active
06918194
ABSTRACT:
A heating configuration for a drier, particularly for a laundry drier, has a burner with a burner head, a first heating channel with an inlet opening and an outlet opening, and a second heating channel with an inlet opening and an outlet opening. The cross-sectional area of the second heating channel is greater than the cross-sectional area of the first heating channel. The burner head projects into the inlet opening of the first heating channel and the outlet opening of the first heating channel projects into the inlet opening of the second heating channel. The first heating channel is disposed in the lower section of the second heating channel so that a uniform temperature distribution is achieved in the second heating channel.
REFERENCES:
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patent: 4526535 (1985-07-01), Wunderlich
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patent: 5538340 (1996-07-01), Brashears
patent: 5819437 (1998-10-01), Briggs
patent: 6116195 (2000-09-01), Valcic et al.
Freese Heinz Werner
Nawrot Thomas
Steffens Günter
BSH Bosch und Siemens Hausgeräte GmbH
Gravini Stephen
Loest Craig J.
Warnock Russell W.
Winburn John T.
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