US Patent 7283058 Tree smoke detection system and method of using same

A tree smoke detection system and method which includes a conically shaped smoke collector housing having an interior wall extending between a wide entrance mouth opening and a narrow exit vent opening and a smoke detection device mounted to the interior wall to position the smoke detection device facing and adjacent to an imaginary center line passing through the wide entrance mouth opening and the narrow exit vent opening to facilitate detecting smoke flow along the imaginary center line.