Filter cartridge monitor
Assignee3M Innovative Properties Company
InventorsShin-Wei Lin, Sheng-Nan Lin
Life of this patent
Estimating the term…
Abstract
A filter cartridge monitor (1) includes a body (2), a shaft (3) extending downward from the body, a circuit board (23) installed in the body (2), an indicator (21) electronically connected to the circuit board (23), a floating component (4) that can move along the shaft (3), and at least one sensor (31) installed on the shaft (3) that is electronically connected to the circuit board (23). When water is poured into the inner jug (52), the floating component (4) will float and move due to its buoyancy in the water. The movement of the floating component (4) can be regarded as the volume of water that passes through the filter cartridge (53), which can be recorded by the circuit board (23) of the monitor (1).
Claims18
A monitor (1) used to monitor the volume of water that passes through the filter cartridge, comprising:
- body (2);
- shaft (3), extending downward from the body (2);
- a circuit board (23) installed in the body (2);
- an indicator (21) electronically connected to the circuit board (23);
- a floating component (4) movably arranged along the shaft (3);
- and
- at least one sensor used to monitor the movement of the moving component (4) installed along the shaft (3) and electronically connected to the circuit board (23).
Dependencies are inferred from the claim text.