Hybrid roof vent
AssigneeCanplas Industries Ltd.
InventorJames Brian Mantyla
Life of this patent
Estimating the term…
Abstract
A dual function roof vent having a main body having an air passageway extending therethrough and being sized and shaped to fit onto an opening in a roof where the air passageway defines an air to flow path between the interior and the exterior of a building. The air passageway also defines a vent net free flow area. A collar is attached to and extends below the main body, and the collar is sized and shaped to fit through the roof opening. The collar including air inflow gaps, and a fan mount, with an electrically powered fan mounted to said fan mount. The collar air inflow area, including the air inflow gaps, is within about 5% of the vent net free flow area defined by the air passageway.
Claims24
A roof vent comprising:
- a main body having an air passageway and being sized and shaped to fit onto an opening in a roof, said roof opening defining an air flow path between an interior and an exterior of a building, said air passageway defining a vent net free flow area;
- a collar attached at one end thereof to the main body, said collar being sized and shaped to fit through said roof opening and extend into said interior of said building, said collar including air inflow gaps formed integrally therein;
- said collar further including a fan mount at an opposed other end of said collar;
- and
- an electrically powered fan mounted to said fan mount, said fan being configured to drive an air flow from said interior of said building, through said collar to said air passageway in said main body, and out said main body to said exterior of said building;
- wherein a collar air inflow area, including the air inflow gaps, is within about 5% of the vent net free flow area.
A roof vent comprising:
- a main body having an air passageway and being sized and shaped to fit onto an opening in a roof, said roof opening defining an air flow path between an interior and an exterior of a building, said air passageway defining a vent net free flow area, said main body having a grill defining an open flow area therethrough in a roof portion of the main body;
- a collar attached at one end thereof to the main body, said collar being sized and shaped to fit through said roof opening and extend into said interior of said building, said collar including air inflow gaps;
- said collar further including a fan mount at an opposed other end of said collar;
- and
- an electrically powered fan mounted to said fan mount;
- wherein a collar air inflow area, including the air inflow gaps, is within about 5% of the vent net free flow area;
- and
- wherein the open flow area of the grill is within about 5% of the vent net free flow area.
Dependencies are inferred from the claim text.