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US RE30,725 EGranted
Fireplace grate
OwnerJohn G. Meekerinventor
Life of this patent
Estimating the term…
Abstract
A fireplace grate comprising a support for holding burning logs and the accompanying hot embers and ashes and including heat transfer structure for transferring heat generated by the logs and embers to the area immediately therebelow. The grate further includes air passageways located in the area below the support. The passageways having air outlets at the front of the grate for directing air into the room in which the fireplace is located and air inlets disposed at location remote from the air outlets for receiving air for passage through the passageways.
Claims32
A fireplace grate for holding logs in a fireplace located in a room of a building and having a back adapted to be disposed along the back of the fireplace and a front adapted to face the front of the fireplace, said grate comprising:
- a. support means for supporting burning logs and accompanying ashes and hot embers and for transferring heat to air passageway means disposed therebelow, said support means [having a lateral extent about the same as the length of logs to be supported and] comprising a support plate for supporting said ashes and hot embers;
- b. a plurality of spaced heat transfer fins depending from said support plate into said air passageway means, said fins [extending from the back of said grate to the front of said grate to define] and said support plate being integrally formed from extruded aluminum and defining separate air subpassageways;
- c. air passageway means bounded at the top by said support plate and bounded [on] at the bottom by a second plate [generally co-extensive with] vertically spaced from said support plate, and having air inlet means connected thereto [at the back of said grate] and having air outlet means near the front of said grate [extending across substantially the entire lateral extent of said support means;] and d. fan means for forcing air into said air inlet means [,] and through said air passageway means and
- e. base means disposed beneath said air passageway means for supporting said grate in said fireplace with said air passageway means spaced above the floor of said fireplace and out said air outlet means into said room[;].
1 more element
A fireplace grate according to claim [4] 1 wherein:
- a. the support plate and the heat transfer fins are integrally constructed of extruded aluminum;
- b. the support plate has a thickness of about 1/8 inch;
- c. the fins are tapered in cross-section with a thickness at the support plate of about 1/8 inch and a thickness at their lower extent of about 1/16 inch;
- and
- d. the second plate is constructed of sheet metal.
2 more elements
A fireplace grate for holding logs in a fireplace located in a room of a building and having a back adapted to be disposed along the back of the fireplace and a front adapted to face the front of the fireplace, said grate comprising:
- a. support means for supporting burning logs and accompanying ashes and hot embers and for transferring heat to air passageway means disposed therebelow, said support means comprising a support plate for supporting said ashes and hot embers;
- b. a plurality of spaced heat transfer fins depending from said support plate into said air passageway means, said fins and said support plate being integrally formed from extruded aluminum and defining separate air subpassageways;
- c. air passageway means bounded at the top by said support plate and bounded at the bottom by a second plate vertically spaced from said support plate, and having air inlet means connected thereto at the back of said grate and having air outlet means near the front of said grate;
- d. fan means for forcing air into said air inlet means, through said air passageway means and out said air outlet means into said room;
- and
- e. said fan means being constructed and arranged to force air between said fins and said plates at a rate sufficient to preclude overheating the area beyond said second plate and said fins.
3 more elements
A fireplace grate for holding logs in a fireplace located in a room of a building and having a back adapted to be disposed along the back of the fireplace and a front adapted to face the front of the fireplace, said grate comprising:
- a. support means for supporting burning logs and accompanying ashes and hot embers and for transferring heat to air passageway means disposed therebelow, said support means comprising a support plate for supporting said ashes and hot embers;
- b. a plurality of spaced heat transfer fins depending from said support plate into said air passageway means, said fins and said support plate being integrally formed from extruded aluminum and defining separate air subpassageways;
- c. air passageway means bounded at the top by said support plate and bounded at the bottom by a second plate vertically spaced from said support plate, and having air inlet means connected thereto at the back of said grate and having air outlet means near the front of said grate;
- d. fan means for forcing air into said air inlet means, through said air passageway means and out said air outlet means into said room;
- and
- e. said fan means being constructed and arranged to move air between said fins and said plates at such a rate as to not overcool or overheat said
- fins and said support plate.
4 more elements
A fireplace grate for holding logs in a fireplace located in a room of a building and having a back adapted to be disposed along the back of the fireplace and a front adapted to face the front of the fireplace, said grate comprising:
- a. support means for supporting burning logs and accompanying ashes and hot embers and for transferring heat to air passageway means disposed therebelow, said support means comprising a support plate for supporting said ashes and hot embers;
- b. a plurality of spaced heat transfer fins depending from said support plate into said air passageway means, said fins and said support plate being integrally formed from extruded aluminum and defining separate air subpassageways;
- c. air passageway means bounded at the top by said support plate and bounded at the bottom by a second plate vertically spaced from said support plate, and having air inlet means connected thereto at the back of said grate and having air outlet means near the front of said grate;
- d. air circulating means for moving air into said air inlet means, through said air passageway means and out said air outlet means into said room;
- and
- e. said air-circulating means being constructed and arranged to move air between said fins and said plates at a rate sufficient to preclude overheating the area beyond said second plate and said fins.
3 more elements
A fireplace grate for holding logs in a fireplace located in a room of a building and having a back adapted to be disposed along the back of the fireplace and a front adapted to face the front of the fireplace, said grate comprising:
- a. support means for supporting burning logs and accompanying ashes and hot embers and for transferring heat to air passageway means disposed therebelow, said support means comprising a support plate for supporting said ashes and hot embers;
- b. a plurality of spaced heat transfer fins depending from said support plate into said air passageway means, said fins and said support plate being integrally formed from extruded aluminum and defining separate air subpassageways;
- c. air passageway means bounded at the top by said support plate, bounded on the bottom by a second plate vertically spaced from said support plate, and having air inlet means connected thereto at the back of said grate and having air outlet means near the front of said grate;
- d. fan means for forcing air into said air inlet means, through said air passageway means and out said air outlet means into said room;
- and
- e. said fan means being constructed and arranged to force air between said fins and said plates in sufficient volume and at sufficient velocity to preclude overheating the area beyond said second plate and said fins and to prevent the sagging of said fins and of said support plate from the heat of the burning logs and hot embers supported thereby. 6. In a fireplace grate of the type which supports logs in a fireplace located in a room of a building and having a back adapted to be disposed along the back of the fireplace and a front adapted to face the front of the fireplace, the improvement which comprises:
- a. a support plate including a plurality of spaced heat transfer fins depending from said support plate into air passageway means disposed below said support plate, said fins and said support plate being integrally formed from extruded aluminum and extending from the back of said grate to the front of said grate to define separate air subpassageways;
- b. air passageway means bounded at the top by said support plate, bounded on the bottom by a second plate, and having air inlet means connected thereto at the back of said grate and having air outlet means near the front of said grate;
- and
- c. fan means for forcing air into said air inlet means, through said air passageway means and out said air outlet means into said room at sufficient rate to preclude overheating the area beyond said support plate
- and depending fins.
8 more elements
In a fireplace grate of the type which supports logs in a fireplace located in a room of a building and having a back adapted to be disposed along the back of the fireplace and a front adapted to face the front of the fireplace, the improvement which comprises:
- a. a support plate including a plurality of spaced heat transfer fins depending from said support plate into air passageway means disposed below said support plate, said fins and said support plate being integrally formed from extruded aluminum and extending from the back of said grate to the front of said grate to define separate air subpassageways;
- b. air passageway means bounded at the top by said support plate, bounded on the bottom by a second plate, and having air inlet means connected thereto at the back of said grate and having air outlet means near the front of said grate;
- and
- c. fan means for forcing air into said air inlet means, through said air passageway means and out said air outlet means into said room, said fan means being constructed and arranged to force air between said fins and said plates in sufficient volume and at sufficient velocity to preclude overheating the area beyond said second plate and said fins and to prevent the sagging of said fins and of said support plate from the heat of the
- burning logs and hot embers supported thereby.
2 more elements
A system for increasing the heating efficiency of a fireplace fire which comprises:
- a. air passageway means having air inlet and outlet means and being bounded by spaced first and second plate means, said first plate means defining a heat transfer structure and being formed of extruded aluminum having a plurality of closely spaced fin means integrally formed therewith and extending toward said second plate means to divide said air passageway means into a plurality of separate air subpassageways, said heat transfer structure being positioned intermediate said fire and said second plate;
- and
- b. means for forcing an air circulation between said air passageway means inlet and outlet means at sufficient rate to preclude overheating of the area beyond said heat transfer structure.
A system for increasing the heating efficiency of a fireplace fire which comprises:
- a. heat transfer structure defining air passageway means having air inlet and outlet means and being formed of extruded aluminum;
- b. said heat transfer structure being comprised of first plate means and a plurality of extruded closely spaced fin means integrally formed therewith and extending outwardly from one side thereof from a point adjacent said air inlet means to a point adjacent said air outlet means;
- c. second plate means spaced from said first plate means and cooperatively defining an air passageway with said first plate means, some of said fin means being disposed within said air passageway and defining a plurality of air subpassageways between said first and second plate means;
- d. said heat transfer structure being constructed and arranged to be positioned adjacent the fire and intermediate the fire and said second plate means;
- and
- e. means for circulating air into said air inlet means through said air subpassageways and out of said air outlet means at a rate sufficient to preclude overheating said heat transfer structure and the area beyond said
- second plate means.
4 more elements
A system for increasing the heating efficiency of a fireplace fire which comprises:
- a. heat transfer structure formed of extruded aluminum;
- b. said heat transfer structure being comprised of plate means and a plurality of extruded closely spaced fin means integrally formed therewith of extruded aluminum and extending outwardly from one side thereof;
- c. second plate means spaced from said first plate means and cooperatively defining therewith an air passageway therebetween, said air passageway having air inlet and outlet means;
- d. said fin means extending between said first and second plate means within said air passageway from said air inlet means to said air outlet means and defining a plurality of air subpassageways with said first and second plate means;
- e. said heat transfer structure being constructed and arranged to be positioned adjacent the fire and intermediate the fire and said second plate means;
- and
- f. means for circulating air into said air inlet means, through said air subpassageways and out said air outlet means at a rate sufficient to preclude overheating said heat transfer structure and the area beyond said second plate means.
4 more elements
Dependencies are inferred from the claim text.