Insulated crawlspace vent apparatus, and methods of...

Details Insulated crawlspace vent apparatus, and methods of... Insulated crawlspace vent apparatus, and methods of...

2006-08-29

2006-08-29

Boles, Derek S. (Department: 3749)

Ventilation

Having inlet airway

Including specific cover or shield for exterior vent opening

C454S275000

Reexamination Certificate

active

07097557

ABSTRACT:
An insulated crawlspace vent to provide airflow in a crawlspace in the summer and insulate it in the winter. An aluminum extrusion built as a picture frame is glued to the opening in the foundation of the crawlspace. An insulated door closes from the outside and is latched shut to keep out the cold.

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patent: 5620368 (1997-04-01), Bates et al.
patent: 6468054 (2002-10-01), Anthony et al.
patent: 6817942 (2004-11-01), Betz

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