Patent ID: 8657906

Claim:
A replacement media advancing air filter in an air handling unit with an air flow channel comprising: a housing having a substantially uniform thickness throughout the length and width of the housing and an at least one exposure slot; an at least one filter media storage area, having an at least one media with an at least one unexposed pleated, folded filter media portion stored therein, the at least one unexposed pleated, folded filter media portion being pleated, folded, and stacked in and compactly held at least in part within the at least one filter media storage area; an at least one motor coupled to a power supply and in communication with a controller, the at least one motor moving an at least one movement member that moves a portion of the at least one unexposed, pleated, folded filter media portion from a stored state in the at least one filter media storage area unfolding the unexposed pleated, filter, pleated filter media into the at least one exposure slot and exposing the unexposed pleated filter media portion of the at least one filter media to the air in the air flow channel creating an exposed pleated filter media portion of the at least one filter media, the exposed portion being moved in conjunction with an at least one supporting member and the movement of the exposed portion of the at least one filter media being based on output from the controller; and a containment area, wherein the exposed portion of the at least one filter media is collected and retained within the containment area as a further portion of the unexposed, pleated, folded filter media from the at least one filter media is moved into the exposure slot to replace the exposed portion therein.