Patent ID: 9442001
Filing Date: 2016-09-13
CPC Classification: G01F,G01M

Claim Text:
1. A method of monitoring liquid in a first reservoir, the method comprising: positioning a second reservoir in the first reservoir, the liquid in the first reservoir also being present in the second reservoir; straddling a wall of the second reservoir with a liquid level monitoring apparatus, thereby partially immersing the liquid level monitoring apparatus in the first and second reservoirs, the apparatus including first and second float devices, each of the first and second float devices thereby indicating a level of the liquid in a respective one of the first and second reservoirs; recording the level of the liquid in the first reservoir over a period of time, as indicated by the first float device; recording the level of the liquid in the second reservoir over the same period of time, as indicated by the second float device; and comparing a first change in the level of the liquid in the first reservoir to a second change in the level of the liquid in the second reservoir.