Roof vent and method of making same

Details Roof vent and method of making same Roof vent and method of making same

1984-08-27

1986-12-02

Joyce, Harold

Joints and connections

Interfitted members with external bridging piece

55309, 55506, 98 55, 403241, 403382, F24F 700

Patent

active

046256300

ABSTRACT:
A nestable roof vent for use on the roofs of grain bins and other structures where circulation of air within the structure is required. The vent includes a bird screen sized to extend across the interior of the vent housing that is secured to a flange over the opening in the bin roof so as to be free from binding contact with the vent housing. Accordingly, should the screen become clogged with husks or leaves, the screen will bend about the flange to release any pressure build-up before structural damage to the structure can occur. A locking seam, capable of being made along the curved edge of a piece of sheet metal, is also disclosed.

REFERENCES:
patent: 359826 (1887-03-01), Walsh
patent: 2447472 (1948-08-01), Donley
patent: 2551223 (1951-05-01), Schneider
patent: 2636429 (1953-04-01), Parsons
patent: 2692548 (1954-10-01), Knorr
patent: 2878743 (1959-03-01), Trunnell
patent: 2992701 (1961-07-01), White
patent: 4026082 (1977-05-01), Crofoot
patent: 4214511 (1980-07-01), Mueller
patent: 4480534 (1984-11-01), Sloan

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