Electric resistance heating devices – Heating devices – Convection space heater
Reexamination Certificate
2006-12-12
2006-12-12
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Convection space heater
C219S536000, C034S596000
Reexamination Certificate
active
07149416
ABSTRACT:
A heater for a washer-dryer includes a duct in which heating elements for heating the air flowing through the duct are disposed. A device for increasing the airflow in the area of a heating element is provided in the duct to improve the transportation of heat away from the heating element. The airflow device can be one or more projections on a wall of the duct extending into the duct and can be disposed upstream of the heating element with respect to a flow direction of the air, adjacent the heating element, and/or downstream of the heating element.
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Nawrot Thomas
Peters Bert
Ziemann Andreas
BSH Bosch and Siemens Hausgeraete GmbH
Campbell Thor S.
Loest Craig J.
Wamock Russell W.
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