John D Conrad

US Patent:

46305300, Dec 23, 1986

Filed:

May 9, 1984

Appl. No.:

6/608382

Inventors:

William R. Eckstrom - Dolton IL
John R. Conrad - Westlake Village CA

Assignee:

Travel-Aire, Inc. - Dolton IL

International Classification:

B60H 306

US Classification:

98 211

Abstract:

A filtering unit for a bus, the unit comprising one outer housing of a size to fit between the row of seats in the bus and a forwardly facing wall of a bus lavatory behind the seats, the housing having air inlet and air outlet openings for communication with ducts opening in upper and lower portions of the lavatory. The housing comprises a main housing body with an interior horizontal passageway of consistent cross sectional shape extending parallel to the rear of the outer housing, the main housing body having a horizontally facing opening at the outer end thereof which is covered by a panel which is movable to expose said opening, and a drawer unit slidable into or removable from said passageway through said opening. The drawer contains at least an air filter for removing at least lavatory odor-causing gaseous and particle materials from the air stream passing therethrough and an air circulating fan and drive motor therefor.