Damper apparatus including plenum and multiple damper blades

Details Damper apparatus including plenum and multiple damper blades Damper apparatus including plenum and multiple damper blades

1997-03-12

1999-08-10

Joyce, Harold

Ventilation

Having inlet airway

With adjustable valve

137883, 25112911, 251878, F24F 300

Patent

active

059349948

ABSTRACT:
Damper apparatus includes a housing and dividers in the interior of the housing. One of the dividers forms a plenum and two openings leading from the plenum to an air flow outlet of the housing. Separate damper blades control air flow through the openings. A second divider divides the housing interior into separate passageways, one passageway in communication with one opening and the other passageway in communication with the other opening.

REFERENCES:
patent: 2295145 (1942-09-01), Welch
patent: 3389858 (1968-06-01), Capps
patent: 3965933 (1976-06-01), Beaudin
patent: 5096156 (1992-03-01), Wylie et al.

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