Dual purpose attic fan

Ventilation – Having outlet airway – With air pump

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Details

454355, 454356, F24F 706

Patent

active

058169091

ABSTRACT:
A dual purpose attic ventilator (10) comprising a hatch (12) with a structure (14) for mounting the hatch (12) on a roof (16) of an attic (18) in a building (20) having an opening (22) therethrough. An attic fan (24) is also provided. A component (26) is for pivoting the attic fan (24) on the hatch (12). A person can open the attic fan (24) on the hatch (12) to climb out through the hatch (12) onto the roof (16) of the building (20). The person can close the attic fan (24) on the hatch (12), to allow the attic fan (24) to pull hot air out of the attic (18) through the hatch (12).

REFERENCES:
patent: 2551004 (1951-05-01), Johnson
patent: 2605691 (1952-08-01), Euwer et al.
patent: 2746674 (1956-05-01), Alldritt et al.
patent: 4286508 (1981-09-01), Seebo, II
patent: 4633769 (1987-01-01), Milks
patent: 4768424 (1988-09-01), Frenkler et al.
patent: 4941300 (1990-07-01), Lyons
patent: 4977884 (1990-12-01), Kaufman
patent: 5330386 (1994-07-01), Calandra
"Power-Flow Obsoletes Other Types or Ventilators", received Dec. 1948, pp. 4-10.

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