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Publication numberUS2165661 A
Publication typeGrant
Publication dateJul 11, 1939
Filing dateOct 17, 1938
Priority dateOct 17, 1938
Publication numberUS 2165661 A, US 2165661A, US-A-2165661, US2165661 A, US2165661A
InventorsStenquist Robert J
Original AssigneeStenquist Robert J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Fireplace
US 2165661 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

July 11, 1939. R. J. STENQUIST 2,155,651

FIREPLACE Filed Oct. 17, 1938 2 Sheets-Sheet 1 I I! l 1: cl 0 I o 1 u 0 B j {14 /7 .48 4 Inventor .jslenfwzsl 4 A iiomeys y 1939- R. J. STENQUIST 2,155,561

FIREPLACE Filed Oct. 17, 1958 2 Sheets-Sheet 2 Eafierf J Sienymkn I A itorneys I Patented July 11,1939

UNITED STATES PATENT orFicE,

mam-men 6 Robert J. Stemulst, Kalama, Wash. Application October 11, ms, Serial No. 235,511 v s Claims. (Cl. 126-121) My invention relates to improvements in fireplaces, and the primary object in view is to equip prehended bymy invention all of which, together with the precise nature of my improvements, will be readily understood whenthe succeeding description and claims are read with reference to the drawings accompanying and forming part of this specification.

In said drawings:

Figure 1 is a view in front elevation of a fireplace equipped according to my invention.

Figure 2 is a fragmentary view in horizontal section taken on the line 22 of Figure 1, looking downwardly.

Figure 3 is a view in vertical transverse section taken on the line 2-3 of Figure 1 looking in the direction indicated by the arrows.

Figure 4 is a view in end elevation of the lower flue header.

Figure 5 is a view in top plan of the water containing pan, and

Figure 6 is a view in top plan, partly broken away, of the closure assembly for the fiue opening.

Referring to the drawings by numerals, l designates the usual brick fireplace having the open front combustion chamber 2, the fire brick bottom 3, 'the back wall 4, the upper front baflie 6, the mantel structure 9 and the flue opening l communicating at its rear with the chimney flue 3.

According to my invention, the described fireplace I is equipped with a plurality of tubular somewhat hook-shaped heat conducting flues 9, of any suitable material, spaced apart laterally and equidistantly and constructed and arranged as follows. Each-flue 9 comprises a lower straight end Iii inclining downwardly from the frontof the chamber 2, at a slight angle, and spaced at a suitable distance from the bottom 3, a straight, vertical and intermediate portion ll opposed flush to the rear wall I, and a forwardly and upwardly curving upper end I 2 of compound curvature extending through the flue opening I into the mantel structure 6 and terminating short of the top of the latter. The portion of each flue 9 above the fiue, opening I is telescoped into the lower end of a mantel fiue ii of insulation material builtinto the mantel structure 6 and opening at its upper end into an elongated water con- 5 taining pan M countersunk into the upper face of the mantel structure 6 and adapted to be covered by'a grid I! supported by edge keeper flanges I on said pan. Short thimbles II depending from the grid l6 flt into the mantel flues ii.

The lower ends iii of the flues 9 are supported by a front lower header "extending substantially across the front of the fireplace combustion chamber 2, said header comprising a front plate 15 it having rearwardly curved ends i9, legs 20, and rearwardly extending thimbles 2| in which" the ends ll of flues 9 are held by set screws 22. The plate ll of header I1 is perforated, as at 23, in front of the thimbles 2| to admit airinto the 20 latter. At suitable points, said plate i8 has formed therein a pair of vertical sockets 24 for receiving uprights 25 functioning as andirons.

The flue opening 1 is bridged by a closure assembiy including a horizontal ledge 26 set into 25 the back wall 4, and a damper plate 28 secured at its rear edge by stove bolts 21 to said ledge 26 and having a rightangled front portion 29 fitting around the rear face and under side, of the bafiie I and cemented or otherwise secured to said 30 banie. The ledge 26 and damper plate, 28 are apertured, as at 36, for the passage of the flues 9 therethrough. The damper plate 28 has formed therein an elongated aperture 3 extending lengthwise from side to side of the plate in front 35 of the flues 9 and adapted to be closed by means of a flap damper 32 hinged to said plate, as at 33, to open upwardly and forwardly. A pull chain 34 is attached to said damper 32, as at 35, and

extended through a sleeve 36 in the bafiie 5 for 40 grasping to open said damper. The damper 32 may be provided with a depending hand grip 31 for use in case the chain 34 breaks.

Above the flue opening I, a liner plate 38 is suitably secured to the bottom of the mantel struc- 5 ture 6 as by building'the same into said structure, said plate 31 being apertured for the passage of portion l2 of the flues 9 therethrough.

As will now be seen, the ends I 0 of flues 9 function as grate bars for the burning of logs 5 thereon and as the heat in the room increases air from the room is drawn into the flues 9 by way of the lower ends it thereof to be heated in said flues and discharged out of the upper ends i2 thereof by way of flues l3, thimbles l1 and grid 55 I5 into the room, such heated air taking up moisture from pan II and being properly humidified. The air in passing through theflues'iis heated in the portions l2 thereof and further heated as it passes through those portions of the flues O that extend through the flue opening I because of the fact that damper opening 3| is in front ofsaid portions whereby the heat and products of combustion issuing from said opening I, are concentrated on said flue portions under the draft created by the chimney flue 8..

The foregoing will, it is believed, suffice to impart a clear understanding of my invention without further explanation.

Manifestly the invention, as described, is susceptible of modification without departing from the inventive concept and right is herein reserved to such modifications as fall withinthe scope of the subjoined claims.

What I claim is:

1. A fireplace comprising an, open front combustion chamber having a flue opening in the top'thereof, a back wall, a front mantel structure above said chambenand a plurality of heating fiues extending from the bottom of said chamber into said mantel structure in spaced apart relation and opening onto the top of the latter," said flues comprising, respectively, a lower straight end inclining downwardly and rearwardly in the bottom of said chamber to form a fire grate bar, a vertical intermediate portion fitting against the back wall for heating by said fire, and a for wardly and upwardly curving portion traversing said flue opening for exposure to the products of combustion passing through said opening, and.

humidifying means for heated air issuing from the upper ends of said flues comprising a water containing pan, sunk in the top of said mantel and through which the upper ends of saidflues extend, and a grid covering said pan and said upper ends of the flues.

2. A fireplace comprising an open front combustion chamber having a flue opening in the top thereof, a back wall, a front mantel structure above said chamber. and a plurality of heating flues extending from the bottom of said chamber into said mantel structure in spaced apart relation and opening onto the top of the latter, said flues comprising, respectively, a lower straight end inclining downwardly and rearWardly in the bottom of said chamber to form a fire grate bar, a vertical intermediate portion fitting against the back wall for heating by said fire, and a for-- wardly and upwardly curving portion traversing said fiue opening for exposure to the products of combustion passing through said opening, and a damper assembly extending across said flue opening comprising a plate through which said flues extend and having an elongated aperture therein in front of said flues, and a flap damper hinged to said plate for opening and closing said flue opening.

3. A fireplace comprising an open front combustion chamber having'a flue opening in the top thereof, a back wall, a front mantel structure above said chamber, and a: plurality of heating flues extending from the bottom of said chamber into said-mantel structure in spaced apart relation and opening onto the top of the latter, said flues comprising, respectively, a lower straight end inclining downwardly and rearwardly in the bottom of said chamber to form a fire grate bar, a vertical intermediate portion fitting against the back wall for heating by said fire, and a forwardly and upwardly curving portion traversing said flue opening for exposure to the products of combustion passing through said opening, and humidifying means for heated air issuing from the upper ends of said flues comprising a water containing pan sunk in the top of said mantel and through which the upper ends of said flues extend;

ROBERT J. S'I'ENQUIST.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2453954 *Aug 10, 1944Nov 16, 1948Wright Harry TFireplace heating system
US4131231 *Feb 1, 1977Dec 26, 1978Ridgway Steel Fabricators, Inc.Fireplace heating system
US4149517 *Sep 16, 1977Apr 17, 1979Horwinski Elwood RGrate and stove heating unit
US4195778 *Nov 15, 1977Apr 1, 1980Hyten Jesse GAuxiliary air heater for fireplaces
US4197829 *Jun 29, 1978Apr 15, 1980Heatco, Inc.Heat exchanger for use in fireplace
US4495933 *Jul 26, 1982Jan 29, 1985Schinbeckler Steven EFireplace insert and method
USRE30725 *Feb 26, 1980Sep 1, 1981 Fireplace grate
Classifications
U.S. Classification126/508, 126/524
International ClassificationF24B1/00, F24B1/188
Cooperative ClassificationF24B1/1886
European ClassificationF24B1/188F2