1984-08-06
1986-02-25
Wayner, William E.
98 661, F23L 1702
Patent
active
045720592
ABSTRACT:
A static ventilator comprising a hollow housing having a circumferential sidewall, a closed top end, and an open bottom end. One or more vent openings are horizontally disposed in the sidewall. At least two downwardly sloping hood plates are secured above and below each of the vent openings and have a downwardly extending outer end flange having a free end edge. An anti-squall deflector plate is secured below the vent openings intermediate the hood plates and extend above the horizontal plane of the free end edge of a top one of the two hood plates and terminate short of the outer end flange of the top hood plate to define a vent port between the hood end flange and free end of the deflector plate communicating with the vent opening between the two hood plates. The anti-squall deflector plate prevents foreign matter from entering the vent openings.
REFERENCES:
patent: 418305 (1889-12-01), Blaikie
patent: 1230305 (1917-06-01), Klay
patent: 1657625 (1928-01-01), Hoal
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