Ventilation – Chimney or stack – Chimneytop or stacktop structure
Patent
1998-06-01
1999-11-30
Joyce, Harold
Ventilation
Chimney or stack
Chimneytop or stacktop structure
454 17, 454 22, F23L 1702
Patent
active
059933097
ABSTRACT:
A chimney exhaust system for facilitating or creating an upward draft in a chimney flue, operating on what is referred to as "Bernoulli's Principle" comprises a housing unit having a tubular cross member and a tubular depending member, both members having an inlet and an outlet. The outlet of the depending member intersects the cross member at an intermediate position between the inlet and outlet of the cross member. The depending member is mounted to a chimney flue at its inlet and acts as an extension thereof. A fan is attached to the housing unit proximate the cross member to generate air flow through the cross member and across the opening of the depending member's outlet. The air flow generated through the cross member creates an upward draft of the air in the chimney flue and the depending member.
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Howell Chris
Scofield Michael A.
Harkins Kristin Jordan
Joyce Harold
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