Patent ID: 8635908
Filing Date: 2014-01-28
Classification: B41J,G01F

Abstract:
1. A container to hold a volume of fluid, comprising: a housing defining an interior to retain the volume of fluid; and at least one pair of opposed electrodes disposed in the interior forming a capacitor having a capacitance that varies in response to an amount of fluid existing between the opposed electrodes, a higher said capacitance corresponds to a higher said amount of fluid existing between the opposed electrodes, wherein the at least one pair of opposed electrodes is configured to provide a first and a second capacitance measurement value to a controller configured to compare the first to the second capacitance to ascertain tilt of the housing by determining whether the second capacitance is higher than the first capacitance, wherein the at least one pair of opposed electrodes is disposed on only a first side of the interior.