Back to results
US 6,484,713 B1Granted
Fume exhaust device for use above a range
AssigneeBSH Bosch und Siemens Hausgeraete GmbH
InventorsChristoph Schmitt, Dietrich Schmid, Peter Rohrbach
Life of this patent
Estimating the term…
Abstract
A fume exhaust hood is equipped with a fume detecting sensor element that controls the fan and, additionally, with a sensor element that directly or indirectly detects continuous activation of the range area connection and serves as a control member of a control circuit to start up the fume exhaust hood.
Claims6
A fume exhaust hood device for use above a range, comprising:
- an exhaust device for evacuating fumes;
- a fume detecting sensor element for detecting fumes;
- a control circuit for starting up and operating said exhaust device, said control circuit connected to said fume detecting sensor element;
- and
- an additional sensor element that one of directly and indirectly continuously detects an operating state of the range and serves as a control member of said control circuit for starting up said exhaust device, said control circuit connected to said additional sensor and programmed to automatically activate and control said exhaust device based upon an amount of the fumes detected by said fume detecting sensor element when said additional sensor element detects a range-on operating state for a duration of the range-on operating state.
2 more elements
Dependencies are inferred from the claim text.