Interior ventilation adjustment device

Details Interior ventilation adjustment device Interior ventilation adjustment device

1992-01-15

1993-08-03

Joyce, Harold

Ventilation

Means combined with window

Having air passage between sill and bottom of sash

454273, 454333, F24F 1318

Patent

active

052324028

ABSTRACT:
Interior ventilation adjustment device including a first seat which is arrangeable in a building partition and which is provided with a first opening communicating with the building exterior and a second opening communicating with the building interior. The device further includes a pivoting shutter element for closing said second opening actuated by a lever accommodated in a box-like structure which exclusively opens to the building interior. The shutter element is accommodated in the first seat so as to be out of sight from the building exterior.

REFERENCES:
patent: 327414 (1885-09-01), Scharnweber
patent: 633455 (1899-09-01), Hood
patent: 1204321 (1916-11-01), Shipp
patent: 1445067 (1923-02-01), Brooks
patent: 1643554 (1927-09-01), Glass
patent: 1913974 (1933-06-01), Clay
patent: 2966169 (1960-12-01), Reece

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