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.
Claims21
A ventilation system for a building foundation comprising:
- a flexible cover plate;
- an airflow opening disposed in said cover plate;
- a fan carried by said flexible cover plate adjacent said airflow opening;
- a recompressible flexible polymer foam sheet carried by said flexible cover plate compressing against a perimeter of said fan and forming an airtight seal between said fan and said flexible polymer foam sheet;
- wherein a perimeter edge of said flexible polymer foam sheet maintains a compression force 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;
- and,
- wherein said flexible polymer foam sheet includes an open porous cell structure around said perimeter edge allowing adhesive penetration into said perimeter of said flexible polymer foam sheet.
A ventilation system for a building foundation comprising:
- a flexible cover plate including an airflow opening;
- a fan carried on a rear side of said flexible cover plate adjacent said airflow opening for directing air through said airflow opening;
- a transverse plate carried by and extending outwardly from a front side of said flexible cover plate above said airflow opening;
- a recompressible flexible polymer foam sheet carried on said rear side of said flexible cover plate for compressing against and 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.
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 by each of said flexible cover plates, wherein said fan is adjacent to said airflow opening for direct air through said airflow opening;
- a recompressible flexible polymer foam sheet carried by each of said flexible cover plates compressing against a perimeter of said fan and forming an airtight seal between said fan and said flexible polymer foam sheet;
- wherein a perimeter edge of said flexible polymer foam sheet maintains a compression force 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;
- and,
- an adhesive disposed on said perimeter edge of said flexible polymer foam sheet when mounted in said vent opening for sealing and bonding said flexible polymer foam sheet to said interior wall surfaces within a vent opening.
A ventilation system for a building foundation comprising:
- a flexible cover plate including an airflow opening;
- a fan carried by said flexible cover plate adjacent said airflow opening for direct air through said airflow opening;
- a recompressible flexible polymer foam sheet carried by 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.
Dependencies are inferred from the claim text.