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Chimney attic ventilator   

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Abstract: The invention also increases the efficiency of power roof vents because of the “chimney effect” resulting from the power roof vent being mounted higher than the standard installation—directly on the roof. The chimney effect is as follows: Warm air moving up thru a space and out a vent creates a vacuum. This forces air up from lower level vents. The greater the difference in height between the high and low vents the more movement of air will take place. The purpose of this invention is to allow the use of power roof vents in locations where they are otherwise undesirable. It disguises the power roof vent as a chimney and cap that are used with a combustible fuel source. This is accomplished by building a false chimney (that resembles a masonry or prefabricated chimney suitable for combustion gasses) and mounting the power roof vent on top of it. ...

Agent: - Statesville, NC, US
Inventor: David Allen Campbell
USPTO Applicaton #: #20120003920 - Class: 454365 (USPTO) - 01/05/12 - Class 454 
Related Terms: Height   Standard   
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The Patent Description & Claims data below is from USPTO Patent Application 20120003920, Chimney attic ventilator.

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BACKGROUND OF INVENTION

This is an improvement on the power attic ventilator. The kind most typically installed on the roof surface with a dome type cover.

BRIEF

SUMMARY

OF INVENTION

Uses a chimney to change the mounting location of a power attic ventilator on a roof.

DETAILED DESCRIPTION

OF THE INVENTION

A chimney resembling a masonry chimney or a prefabricated chimney unit, but not requiring combustible vent rating, is installed on a roof. A power attic ventilator is installed on top of it.



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Patent Applications in related categories:

20130115871 - Snow proof roof vent - There is disclosed a snow proof roof vent for ventilating the roof of a building to the atmosphere. The improved roof vent includes a flange portion dimensioned and configured to lay against the roof, the flange portion having a central opening to let air vent from the attic. The roof ...


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