Ventilation – Having inlet airway – Including specific cover or shield for exterior vent opening
Patent
1990-06-15
1991-12-10
Joyce, Harold
Ventilation
Having inlet airway
Including specific cover or shield for exterior vent opening
454365, 454367, F24F 702
Patent
active
050707710
ABSTRACT:
A roof ridge ventilator to be installed under a cap shingle includes a one piece cover member of an elongated shape including a pair of flaps, each flap having one upper surface over which cap shingles are secured and also having downwardly facing lower surfaces, a pair of vents respectively secured to the lower surface of the cover member flaps, each vent including at least one set of shielded louvers having a plurality of openings for deflecting air flow while maintaining a minimum free area for air passage such that the air flowing therethrough is substantially reduced in velocity to limit the infiltration of foreign matter. A plurality of longitudinally spaced supports in each vent extend substantially vertically to permit nailing onto the roof such that the vent does not collapse during installation and such that the net free area remains intact. In another embodiment, a roof ventilator to be installed under a shingle atop a roof surface is disclosed which includes a one piece cover member of an elongated shape having an upper surface over which a shingle is secured, the cover member including a longitudinally extending portion to be secured onto the roof surface. At least one vent is secured to the lower surface of the cover member flap, the vent including at least one set of shielded louvers having a plurality of openings for deflecting the air flow while maintaining a minimum free area for air passage therethrough.
REFERENCES:
patent: Re27943 (1974-03-01), Smith
patent: 2636429 (1953-04-01), Parsons
patent: 2692548 (1954-10-01), Knorr
patent: 3895467 (1975-07-01), Clement
patent: 4280399 (1981-07-01), Cunning
patent: 4558637 (1985-12-01), Mason
patent: 4642958 (1987-02-01), Pewitt
patent: 4817506 (1989-04-01), Cashman
patent: 4903445 (1990-02-01), Mankowski
patent: 4924761 (1990-05-01), MacLeod et al.
Cargill Lynn E.
Joyce Harold
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