Patent ID: 9476751
Filing Date: 2016-10-25
CPC Classification: F24F,G01F

Claim Text:
1. A water level sensor to sense a water level in a storage tank in which water is stored, comprising: a holder; a cap connected to the holder such that the cap reciprocates within the holder; a case connected to the cap such that the case together with the cap reciprocates within the holder; a sensor part attached to the case to sense the water level in the storage tank; and a spring located between the holder and the cap to allow the cap and the case to reciprocate within the holder, wherein the sensor part is mounted at the outside of the storage tank, the case is closely adhered to the storage tank by the restoring force of the spring when the storage tank contacts the case, and the sensor part thus is closely adhered to the storage tank and senses a level of water stored in the storage tank.