Filter changing notification system

Abstract

A filter change notification system is disclosed for use in filtration equipment, including HVAC systems. The system includes a substantially flat, rigid filter mounted on a movable filter tray configured to transition between closed and open positions. The tray includes an airflow opening permitting continued air passage while the filter is installed. The tray is electrically coupled to a filter ejection system comprising a determining component operative to identify a filter-change interval and actuate an associated relay. Activation of the relay drives a mechanical actuator that displaces the filter tray from the closed position to the open position. A notification device, electrically linked to the actuator, provides a visual or electronic alert to a user indicating that the filter has reached its replacement interval and is ready for manual removal and installation of a new filter.

Dependencies are inferred from the claim text.