Cover for outdoor roof opening

Details Cover for outdoor roof opening Cover for outdoor roof opening

2011-01-25

2011-01-25

McAllister, Steven B (Department: 3749)

Ventilation

Chimney or stack

Chimneytop or stacktop structure

C454S035000, C454S034000, C454S032000

Reexamination Certificate

active

07874898

ABSTRACT:
An apparatus for covering an exterior opening in a roof is disclosed. The apparatus includes a hollow conical element defining an inner volume, the conical element having a first opening on a wide end and a second opening on a narrow end. The apparatus further includes a planar element surrounding an outer brim of the first opening, wherein the planar element accepts a fastener for fastening the apparatus to the roof. The apparatus further includes at least one louver covering the second opening and at least one screen located within the inner volume of the conical element, wherein the at least one screen is fastened to an inner surface of the conical element.

REFERENCES:
patent: 441101 (1890-11-01), Kayser
patent: 514252 (1894-02-01), Blankley
patent: 5025712 (1991-06-01), Perry
patent: 5816288 (1998-10-01), Zelch
patent: 6805627 (2004-10-01), Marts et al.
patent: 2003/0110554 (2003-06-01), Hernandez

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