Ventilation – Means combined with window – Having air passage at window top
Patent
1991-10-25
1993-06-15
Joyce, Harold
Ventilation
Means combined with window
Having air passage at window top
454906, E06B 702, F24F 1324
Patent
active
052193128
ABSTRACT:
A slot ventilator having a canopy with a downwardly facing air inlet and a rear wall having an air outlet which, in use, leads to the slot with which the ventilator is associated includes at least one longitudinally extending baffle which increases the flow path between the inlet face and the outlet, at least one surface of the baffle being formed with corrugations which reduce noise generated by air flowing through the ventilator. The ventilator comprises a profile member affording upper and front walls of the canopy and at least one insert slidable longitudinally into the profile member and affording the baffle or baffles. Preferably, the ventilator includes at least two of the said inserts, one being longer than the other.
REFERENCES:
patent: 1929595 (1933-10-01), Macleod
patent: 1938798 (1933-12-01), Bourne
patent: 2202339 (1940-05-01), Dresser et al.
patent: 3255688 (1966-06-01), Iwata
patent: 4953451 (1990-09-01), Arbouw
Joyce Harold
Titon Hardware Limited
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