Smoke reducing power roof ventilator

Details Smoke reducing power roof ventilator Smoke reducing power roof ventilator

1996-08-12

1997-07-08

Joyce, Harold

Ventilation

Having outlet airway

With air pump

454352, 454341, F24F 7007

Patent

active

056454830

ABSTRACT:
A ventilator to be mounted over a square opening in a roof of an establishment producing smoke below. The ventilator has a lower transitional section transforming a square configuration into a round configuration and an upper section in the shape of a cylinder attached to the lower section. The cylinder has an axial force fan mounted therein to create an upwardly moving stream of smoke-laden air therein. The lower section has symmetrically spaced lateral openings in its wall to cause an aspiration of ambient air into the air stream to thereby mix ambient air into the air stream and to thereby reduce the concentration of smoke micro-particles being emitted into the ambient air surrounding the establishment. On top of the cylinder there is provided a self-operating cover to close the ventilator when not in use.

REFERENCES:
patent: 2812703 (1957-11-01), Tobey
patent: 2854916 (1958-10-01), Knutson et al.
patent: 2875678 (1959-03-01), Shepherd
patent: 2900892 (1959-08-01), Shepherd
patent: 3472150 (1969-10-01), Strawsine

Affiliated with

Also associated with

Rating

Smoke reducing power roof ventilator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Smoke reducing power roof ventilator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Smoke reducing power roof ventilator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2406369