1985-10-15
1987-01-06
Joyce, Harold
98 214, 98116, F24F 702
Patent
active
046337695
ABSTRACT:
A power roof vent fan assembly having a motor and fan mounted in a body spanning an opening in the roof of an enclosure. The motor is mounted in H-shaped cross brace assembly having reinforcing ribs for vibration dampening. A shroud is secured to the body which supports a screen and includes a trim flange which forms a pocket in conjunction with the body. A bezel is telescopically received within the pocket and secured to the lower surface of the roof. A cover is provided over the top end of the assembly which is hinged on one end and adapted to be opened and closed by a cover lifting mechanism located within the pocket. The fan motor is controlled by a speed control switch also located within the pocket. The pocket in which the switch is retained includes ventilation openings for aiding heat dissipation from the switch.
REFERENCES:
patent: 1722825 (1929-07-01), Roethel
patent: 1983979 (1934-12-01), Graham
patent: 2103843 (1937-12-01), Filion
patent: 2665625 (1954-01-01), Woodhams
patent: 2733649 (1956-02-01), LeBarron
patent: 2752843 (1956-07-01), Strawsine
patent: 3472150 (1969-10-01), Strawsine
patent: 3479947 (1969-11-01), Myers
patent: 3867486 (1975-02-01), Hagele
patent: 3895568 (1975-07-01), Stone
patent: 3934383 (1976-01-01), Perry et al.
patent: 4062273 (1977-12-01), O'Connor
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