Patent ID: 6988468

Claim:
An indexing style Automatic Port Cleaner for cleaning furnace combustion air ports comprising: multiple cleaning tips and rods enclosed substantially in a furnace windbox; an extension bar enclosed substantially in a furnace windbox to which the cleaning rods are attached with the extension bar carrying the cleaning rods and tips in a translating and indexing motion; said extension bar being supported by two fulcrum rods in turn supported by two fulcrum tubes and two fulcrum housings, the fulcrum housings being supported by a faceplate and fixed relative to the combustion air ports; the fulcrum rods adapted to translate relative to the fulcrum tubes while the fulcrum tubes rotate relative to the fulcrum housings; a linear actuator disposed to create a reciprocating translating motion of the fulcrum rods, extension bar, cleaning rods, and cleaning tips; an indexer disposed to create rotation of the fulcrum tubes, fulcrum rods, extension bar, cleaning rods, and cleaning tips, in a reciprocating fashion about the fulcrum housings.