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US 2020/0348163 A1Published application
Liquid level indicating
AssigneeHewlett-Packard Development Company, L.P.
InventorsMichael W. Cumbie, Robert N.K. Browning
Life of this patent
Estimating the term…
Abstract
In some examples, a liquid container comprises a chamber forming a volume containing a liquid, an elongated strip extending into the volume containing the liquid, a plurality of heaters supported by the strip along the strip, and a plurality of temperature sensors supported by the strip along the strip. The temperature sensors output signals indicative of dissipation of heat from the heaters to indicate a level of the liquid in the volume.
Claims20
A liquid container comprising:
- a chamber forming a volume to contain a liquid;
- an elongated strip extending into the volume;
- a plurality of heaters supported by the strip along the strip;
- a plurality of temperature sensors supported by the strip along the strip, wherein the plurality of heaters and the plurality of temperature sensors are supported by a first surface of the strip, wherein the temperature sensors are to output signals indicative of dissipation of heat from the heaters to indicate a level of the liquid in the volume;
- a carrier supporting the strip;
- an electrical interconnect electrically connected to the temperature sensors;
- and
- a collar extending about the carrier and providing a liquid seal to separate the liquid in the volume from the electrical interconnect.
5 more elements
An apparatus comprising:
- a chamber forming a volume to contain a liquid;
- an elongated strip extending into the volume, the strip supporting a plurality of heaters and a plurality of temperature sensors along a length of the strip, wherein the heaters are to generate heat pulses and are distinct from the temperature sensors, and wherein the temperature sensors are to output signals indicative of dissipation of heat from the heaters to indicate a level of the liquid in the volume;
- a carrier supporting the strip;
- an electrical interconnect electrically connected to the temperature sensors;
- and
- a collar extending about the carrier and providing a liquid seal to separate the liquid in the volume from the electrical interconnect.
3 more elements
A liquid container comprising:
- a chamber forming a volume to contain a liquid;
- an elongated strip extending into the volume;
- a plurality of heaters supported by the strip along the strip;
- a plurality of temperature sensors supported by the strip along the strip, wherein the plurality of heaters and the plurality of temperature sensors are supported by a first surface of the strip, wherein the temperature sensors are to output signals indicative of dissipation of heat from the heaters to indicate a level of the liquid in the volume;
- and
- a carrier, wherein the strip is adhered to the carrier, and the carrier is suspended from a top of the chamber.
3 more elements
Dependencies are inferred from the claim text.