US 11,940,317 B1
Filter device with magnetic floater to stop overflow
Michael Pedersen, Sherman Oaks, CA (US); and Chuanzhen Chen, Shenzhen (CN)
Assigned to Aqua Tru, LLC, Sherman Oaks, CA (US)
Filed by Aqua Tru, LLC, Sherman Oaks, CA (US)
Filed on Sep. 22, 2022, as Appl. No. 17/934,316.
Int. Cl. G01F 23/72 (2006.01); H01H 36/02 (2006.01)
CPC G01F 23/72 (2013.01) [H01H 36/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A filter device comprising:
a pitcher comprising:
a pitcher body configured to hold liquid;
a lid configured to cover the pitcher body, and comprising an inlet; and
a magnetic float assembly comprising a magnetic float configured to move responsive to a level of fluid within the pitcher body;
a base configured to removeably receive the pitcher such that a geometry of the pitcher is configured to be aligned with a geometry of the base in an aligned configuration, the base comprising:
an outlet;
a pump operatively coupled to a fluid source, wherein the geometry of the base comprises a protrusion configured to be slidably received by a groove of the lid in the aligned configuration; and
a sensor comprising a detectable range, and configured to detect the magnetic float in the aligned configuration when the magnetic float is within the detectable range; and
circuitry operatively coupled to the pump and the sensor, and configured to cause the pump to transfer fluid from the fluid source to the pitcher body via the outlet and the inlet only when the sensor detects the magnetic float within the detectable range.