Venter

Details Venter Venter

1990-03-15

1991-12-10

Joyce, Harold

Ventilation

Chimney or stack

Chimneytop or stacktop structure

110162, F23L 1702

Patent

active

050707728

ABSTRACT:
A draft inducer having a pair of arcuate semi-scrolls within a cylindrical housing defined by a circular inner end plate and a circular outer end plate vertically spaced by a sidewall. A metal conduit element is connected concentrically to the inner end plate and an electric motor is connected adjacent the outer end plate. A fan blower wheel is disposed in the housing coaxially with the conduit element and is drivingly connected to the motor. The semi-scrolls define curved air passages with twin, oppositely directed outlets for discharging fluid flow outdoors at rates minimally effected by ambient wind conditions.

REFERENCES:
patent: 2987983 (1961-06-01), Solzman
patent: 3782303 (1974-01-01), Pfister et al.
patent: 4250868 (1981-02-01), Frye
patent: 4344370 (1982-08-01), Smith et al.
patent: 4757802 (1988-07-01), Guzorek

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