Weatherproofing doors for the air intake opening of ventilating

Details Weatherproofing doors for the air intake opening of ventilating Weatherproofing doors for the air intake opening of ventilating

1989-10-26

1991-02-05

Joyce, Harold

981211, E06B 708

Patent

active

049895028

ABSTRACT:
A weatherproofing door for an air inlet opening of a ventilating unit. The door has an upper and a lower horizontal doorframe section that can be pivoted outwardly, about vertical axes, in the housing frame that surrounds the air intake opening. Vertically extending, lamellar profiled drop-extracting members that are disposed next to one another extend between the two horizontal doorframe sections. Between the outer and inner sides of the door, the profiled members have profile curvatures that are laterally directed in the same direction, with the height of the profile curvatures, in a horizontal direction, being at least as great as the horizontal clear distance of the air passages between the profiled members. The lower horizontal doorframe section has a drain that communicates with the air passages.

REFERENCES:
patent: 1677910 (1928-07-01), Wills
patent: 3086443 (1963-04-01), Doolittle
patent: 3358580 (1967-12-01), Freese et al.
patent: 3771430 (1973-11-01), Lane

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