US Patent 9383244 Fluid level sensor systems and methods

Fluid level sensor systems and methods can include an inverted cup with a sealed top and an open bottom, the inverted cup defining an inner air space. An inner pressure tube can extend from the inner air space and through the sealed top. A contact sensor can be positioned near the sealed top, the contact sensor including a pair of contacts. A pair of conductors can extend from the contact sensor, one conductor extending from each one of the pair of contacts.