Chimney top spark arrester

Details Chimney top spark arrester Chimney top spark arrester

1981-05-15

1983-03-08

Makay, Albert J.

Furnaces

With fuel treatment means

Preliminary refuse treatment means

110119, F23L 1710, F23J 1500

Patent

active

043757839

ABSTRACT:
A spark arrester characterized by a fixed base assembly attached over the top of a chimney, a pivot assembly attached to the fixed base assembly, and a rotatable assembly rotatably coupled to the pivot assembly. The rotatable assembly is substantially cylindrically shaped having perforate sidewall portions and a perforate top portion. A vane portion of the rotatable assembly orients a windward section of the sidewall portion towards the wind, and a deflection plate attached within the sidewall portions proximate the windward section deflects the prevailing wind up through the top portion of the assembly. Co-action between the upwardly deflected wind and the underside of the vane portion creates a low pressure area over the top portion which substantially increases the draught of the chimney, resulting in reduced risk of chimney fires and an increased burn rate for airborne embers and sparks.

REFERENCES:
patent: 101123 (1870-03-01), Hahn
patent: 204804 (1878-06-01), Dugan
patent: 583847 (1897-06-01), Duhiam
patent: 2152760 (1939-04-01), Gormley
patent: 2282595 (1942-05-01), Will
patent: 2720851 (1955-10-01), Strunsky
patent: 2976796 (1961-03-01), Anthony et al.
patent: 3504616 (1970-04-01), Helm
patent: 3715970 (1973-03-01), Cano

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