Donald A Stumpf

US Patent:

51868695, Feb 16, 1993

Filed:

Oct 15, 1991

Appl. No.:

7/775469

Inventors:

Donald D. Stumpf - Poway CA
Scott A. Stager - Poway CA

International Classification:

B01F 304
B01F 500

US Classification:

261 30

Abstract:

An apparatus for injecting air freshener or other airborn vapor into the air of a building, mounts to the side of a manifold or other air passageway, which is part of the building air conditioning or heating system. A solid, liquid-saturated dispersant cylinder is ultimately inserted into the passageway and removed from the passageway into a substantially sealed container by means of an electric motor drive which is controlled by a microprocessor-driven control system. The programmable control system is set to introduce the solid dispersant into the air passageway at selectable times of the day and for a set duration, but may be overridden manually in the event a party is to be held, etc.