Interlocking device for closing or opening the suction and exhau

Details Interlocking device for closing or opening the suction and exhau Interlocking device for closing or opening the suction and exhau

1996-10-08

1998-09-22

Joyce, Harold

Ventilation

Having forced recirculation

Forced recirculation alone

454324, F24F 1312

Patent

active

058106588

ABSTRACT:
An air conditioner includes a housing forming a lower air suction port and an upper air exhaust port, which ports are opened and closed simultaneously by a mechanism which includes first and second shutters movable vertically in parallel planes. The shutters carry respective rack gears which mesh with opposite sides of a motor-driven pinion gear, whereby the shutters move simultaneously in opposite directions.

REFERENCES:
patent: 3691929 (1972-09-01), Huling, Jr.
patent: 5435781 (1995-07-01), Kitchens

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