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US 2014/0230543 A1Published application
Two wire temperature and fluid level limit switch
AssigneeEaton Corporation
InventorsTodd Fritz, John Manyala, Ryan Pauls, Eric Metheny
Life of this patent
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Abstract
A two-wire system for monitoring fluid level and temperature including a pair of electrical interconnect wires bridged by a fluid level switch and a thermal sensing element. One of the fluid level switch or the thermal sensing element bypasses the other during a trigger event.
Claims20
A two-wire system for monitoring fluid level and temperature comprising:
- a pair of electrical interconnect wires;
- a fluid level switch bridging said electrical interconnect wires;
- a thermal sensing element bridging said electrical interconnect wires;
- wherein one of said fluid level switch and said thermal sensing element bypasses the other during a trigger event.
1 more element
A two-wire system for monitoring fluid level and temperature comprising:
- a single pair of electrical interconnect wires;
- a fluid level switch providing a first electrical pathway between said single pair of electrical interconnect wires;
- and
- a thermal sensing element providing a second electrical pathway between said single pair of electrical interconnect wires;
- wherein said fluid level switch and said thermal sensing element operate in concert to provide a single signal in said single pair of electrical interconnect wires.
2 more elements
A method of monitoring fluid level and temperature comprising:
- monitoring a pair of electrical interconnect wires;
- sensing a fluid level using a fluid level switch bridging said electrical interconnect wires;
- sensing a fluid temperature using a thermal sensing element bridging said electrical interconnect wires;
- and
- wherein one of said fluid level switch or said thermal sensing element bypasses the other during a trigger event.
2 more elements
Dependencies are inferred from the claim text.