Combined static and powered vent device

Details Combined static and powered vent device Combined static and powered vent device

1988-10-24

1990-01-23

Joyce, Harold

98 218, B60H 126

Patent

active

048950653

ABSTRACT:
A combined static and powered vent device for a vehicle such as a bus wherein the interior of the vehicle is continuously vented to the atmosphere in such a way that the forward movement of the bus causes an eductive drawing of the air from the vehicle interior and which also includes a powered fan device for venting the vehicle interior when static or eductive venting is inadequate.

REFERENCES:
patent: 1983979 (1934-12-01), Graham
patent: 2550353 (1951-04-01), Hopfinger
patent: 3867486 (1975-02-01), Nagele
patent: 4307655 (1981-12-01), Parks et al.
patent: 4592269 (1986-06-01), Lamparter
patent: 4633769 (1987-01-01), Milks

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