Exhaust air hood

Details Exhaust air hood Exhaust air hood

1993-03-16

1995-06-06

Joyce, Harold

Ventilation

Having outlet airway

Having specific cover or shield for exterior vent opening

454 32, F24F 702, F23L 1706

Patent

active

054217768

ABSTRACT:
An exhaust air hood has a tubular body and at least one plate member having a chamber inside thereof. The plate member has a planar configuration including widths gradually decreasing toward two longitudinal ends of the plate member, the chamber having an opening at each longitudinal end of the plate member. The exhaust air hood discussed is capable of reducing backflows through exhaust air ports caused by wind pressure, thus enabling a proper ventilation system to be achieved.

REFERENCES:
patent: 164636 (1875-06-01), Creamer
patent: 1097387 (1914-05-01), Breidert
patent: 1336470 (1920-04-01), McDonald
patent: 1435913 (1922-11-01), Breidert
patent: 1645283 (1927-10-01), Hansen
patent: 2813473 (1957-11-01), Scherens

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