Patent ID: 9505633
Filing Date: 2016-11-29
CPC Classification: B01D,C02F

Claim Text:
1. An indicator assembly, waterproof and suitable for attaching or placing into a vessel and submerged inside a liquid to be measured, to show usage of a filter over a period of time until the filter is exhausted, the indicator assembly comprising: a body configured for removable coupling to a face of the vessel or the filter, a contactless sensor disposed within the body to detect or measure the volume of liquid passing through the filter, a display including a top LED, a bottom LED and a light guide pipe, wherein the top LED is configured to direct light upward through an LED indicator dome, the bottom LED is positioned over the light guide pipe to direct light downward into the light guide pipe and the light guide pipe is configured to extend into the liquid and to transmit light from the bottom LED through the liquid, and a motion sensor within the body to activate the display on movement of the vessel, wherein the indicator assembly is configured to use the motion sensor to activate the top LED and the bottom LED to direct light into the liquid using the light guide pipe, the light being externally visible, to show a status of the usage of the filter, such that the status of the usage of the filter is determined by the light directed into the liquid by the bottom LED and upward by the top LED.