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US 11,753,816 B2Granted
Building foundation ventilation system
AssigneeYour Crawl Space, Inc.
InventorHenry Bennie Marshall, III
Life of this patent
Estimating the term…
Abstract
A flexible cover plate with an airflow opening. A fan carried on a rear side of the cover plate over the airflow opening. A protective screen carried on a front side of the cover plate over the airflow opening. An angle bracket carried in an elongated slot disposed in said cover plate having a first portion extending parallel along the rear side of the cover plate, and a second portion extending transverse to the front side of the cover plate above the airflow opening. A flexible polymer foam sheet carried on the rear side of the cover plate for conforming to a vent opening in a building foundation wall so that an airtight seal is formed against the vent opening. A fan speed controller adjusting a desired speed of the fan and airflow through the airflow opening.
Claims18
A ventilation system for a building foundation comprising:
- a flexible cover plate;
- an airflow opening disposed in said cover plate;
- a fan carried on a rear side of said flexible cover plate, wherein said fan is adjacent to and covers said airflow opening for direct air through said airflow opening;
- a flexible polymer foam sheet carried on said rear side of said flexible cover plate and having a fan opening receiving said fan;
- wherein a perimeter of said fan is fully surrounded and engaged by said flexible polymer foam sheet forming an airtight seal between said fan and said flexible polymer foam sheet;
- wherein a perimeter edge of said flexible polymer foam sheet compresses against and conforms to interior wall surfaces within a vent opening in a building foundation to form an airtight seal against said interior wall surfaces;
- wherein said flexible cover plate flexes with said flexible polymer foam sheet when mounting in said vent opening to facilitate conforming and sealing said flexible polymer foam sheet within said vent opening so that said flexible cover plate is secured over said vent opening;
- and,
- wherein said flexible polymer foam sheet comprises a polyethylene foam having a closed cell structure on a front surface and a rear surface, and an open cell structure around said perimeter edge.
6 more elements
A ventilation system for a building foundation comprising:
- a flexible cover plate including an airflow opening;
- an elongated slot disposed in said flexible cover plate above said airflow opening;
- a fan carried on a rear side of said flexible cover plate covering said airflow opening for direct air through said airflow opening;
- a protective screen carried on a front side of said flexible cover plate covering the airflow opening to protect said fan;
- an angle bracket carried in said elongated slot having a first portion extending parallel along said rear side of said flexible cover plate, and a second portion extending transverse to said front side of said flexible cover plate above said airflow opening to protect said airflow opening;
- a flexible polymer foam sheet carried on said rear side of said flexible cover plate for conforming to a vent opening in a building foundation wall to mount said flexible cover plate over said vent opening and form an airtight seal against the walls defining said vent opening, and wherein a perimeter of said fan is fully surrounded and engaged by said flexible polymer foam sheet in an airtight arrangement;
- and,
- a fan speed controller operatively associated with said fan to adjust a desired speed of said fan and provide continuous operation of said fan so that said fan maintains a desired continuous airflow exhausting air from said building foundation when mounted in said vent opening.
5 more elements
A ventilation system for a building foundation comprising:
- an encapsulated foundation space;
- a series of vent openings in said encapsulated foundation space;
- a flexible cover plate disposed over each of said vent openings;
- an airflow opening disposed in each of said cover plates;
- a fan carried on a rear side of each of said flexible cover plates, wherein said fan is adjacent to and covers said airflow opening for direct air through said airflow opening;
- a flexible polymer foam sheet carried on said rear side of each of said flexible cover plates and having a fan opening receiving said fan;
- wherein a perimeter of said fan is fully surrounded and engaged by said flexible polymer foam sheet forming an airtight seal between said fan and said flexible polymer foam sheet;
- wherein a perimeter edge of said flexible polymer foam sheet compresses against and conforms to interior wall surfaces within each of said vent openings to form an airtight seal against said interior wall surfaces;
- wherein said flexible cover plate flexes with said flexible polymer foam sheet when mounting in said vent openings to facilitate conforming and sealing said flexible polymer foam sheet within each of said vent openings so that said flexible cover plate is secured over said vent openings;
- and,
- a fan speed controller operatively associated with each of said fans to adjust a desired speed of each said fan on each flexible cover plate and provide continuous operation of said fans so that said fans maintains a desired continuous airflow exhausting air from said foundation space to create and maintain a negative air pressure within said foundation space.
8 more elements
Dependencies are inferred from the claim text.