Liquid level detection in an emanating device
AssigneeReckitt Benckiser (UK) Limited
InventorsWu Jin, Paul Newton, Simon Pugh
Life of this patent
Estimating the term…
Abstract
An emanation device comprises an emanation material container (10), an emanation section (20) and emanation material level indication means (14,16); wherein, the emanation material level indication means (14, 16) comprises a light source (14), a light detector (16) and control means (not shown), wherein the light detector (16) is adapted to receive light from the light source (14) when a level of emanation material in the emanation material container (10) is at a first level and wherein the light detector (16) is adapted to receive substantially no light from the light source (14) when a level of emanation material in the emanation material container (10) is at a second level.
Claims29
An emanation device comprising:
- an emanation material container, an emanation section and emanation material level indication means;
- wherein, the emanation material level indication means comprises a light source, a light detector and control means, wherein the light detector is adapted to receive light from the light source when a level of emanation material in the emanation material container is at a first level and wherein the light detector is adapted to receive substantially no light from the light source when a level of emanation material in the emanation material container is at a second level.
An emanation device as claimed in any preceding claim, in which the control means are operable to control a heater of the emanation device.
(canceled)
Dependencies are inferred from the claim text.