Pressure relief system for a gas fireplace
OwnerDaniel S. Henry, Jack J. Wellsinventors
Life of this patent
Estimating the term…
Abstract
A pressure relief system for a gas fireplace. The pressure relief system has a flue pipe with an opening in its side. A pressure relief plate is coupled to the flue pipe so that it is movable between an open and a closed state. The pressure relief plate positioned so that it covers the opening in the side of the flue pipe when the pressure relief plate is in the closed state. In the event of a gas explosion, the pressure relief plate is moved to an open state and the pressure build-up in the fireplace is relieved.
Claims18
A pressure relief system comprising:
- a first generally cylindrical pipe operably attached to a combustion chamber, the first pipe defining a pressure relief opening in a sidewall thereof;
- a second generally cylindrical pipe disposed within the first pipe, the first and second pipes extending coaxially with each other, wherein one of the first and the second pipes exhausts gases produced in the combustion chamber and the other of the first and second pipes carries inlet air for the combustion chamber;
- and
- a pressure relief plate coupled to the first pipe so that the pressure relief plate is automatically movable between a closed and an open state upon the application of a sufficient pressure from within the first pipe, the pressure relief plate being positioned to cover the pressure relief opening when the pressure relief plate is in the closed state.
A pressure relief system for a gas fireplace, the pressure relief system comprising:
- an inner flue pipe, the inner flue pipe defining an inner flue opening in a sidewall thereof;
- an outer flue pipe, the outer flue pipe defining an outer flue opening in a sidewall thereof, the inner flue pipe being positioned within and extending coaxially with the outer flue pipe;
- an inner pressure relief plate coupled to the inner flue pipe so that it is movable between an open and a closed state, the inner pressure relief plate positioned so that it covers the inner flue opening when the inner pressure relief plate is in the closed state;
- and
- an outer pressure relief plate coupled to the outer flue pipe so that it is movable between an open and a closed state, the outer pressure relief plate positioned so that it covers the outer flue opening when the outer pressure relief plate is in the closed state.
A gas fireplace pressure relief system, comprising:
- a fireplace including an outer enclosure that defines an outermost surface of the fireplace, and a combustion chamber enclosure positioned within the outer enclosure;
- a burner disposed to combust a combustible gas and air mixture within the combustion chamber enclosure;
- a flue pipe coupled to the combustion chamber enclosure to exhaust combustion products, the flue pipe extending outside of the outer enclosure, the flue pipe defining a pressure relief opening in a portion of the flue pipe that is located outside of the outer enclosure;
- a pressure relief plate coupled to the flue pipe so that the pressure relief plate is movable between an open and a closed state, the pressure relief plate being positioned to cover the pressure relief opening when the pressure relief plate is in the closed state.
Dependencies are inferred from the claim text.