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US 2006/0133448 A1Published application
Self-heated liquid level sensor
AssigneeInternational Business Machines Corporation
InventorsDaniel Kearney, Randy Zoodsma
Life of this patent
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Abstract
A liquid level sensor comprising a thermistor probe and a power source connected to the thermistor probe to heat the thermistor probe. A cover encases the thermistor probe and includes openings allowing liquid to enter and exit an interior of the cover and contact the thermistor probe. A detector detects a liquid level in response to a voltage at the thermistor probe.
Claims8
A liquid level sensor comprising:
- a thermistor probe;
- a power source connected to the thermistor probe to heat the thermistor probe;
- a cover encasing the thermistor probe, the cover including openings allowing liquid to enter and exit an interior of the cover and contact the thermistor probe;
- a detector detecting a liquid level in response to a voltage at the thermistor probe.
1 more element
Dependencies are inferred from the claim text.