US3228386A - Circulating gas heater - Google Patents

Description

Jan. 11, 1966 A. E. MOORES CIRGULATING GAS HEATER Filed May 6, 1964 INVENTOR Aioliun E. Moores Fig.2

ATTORNEY United States Patent 3,228,386 CIRCULATING GAS HEATER Aeolian E. Moores, 3999 Bowser St., Dallas, Tex. Filed May 6, 1964, Ser. No. 365,869 1 Claim. (Cl. 126-92) This invention relates to gas fueled heating stoves designed primarily for use as room heaters, and it has particular reference to the type of heater employing a manifold burner unit and a superposed arrangement of radiants.

Numerous types of heating stoves have been devised for permanent or temporary installation, and equipped with burners suitable for the consumption of fuel oils or gas, and provided with ceramic radiants for better heat projection, but no appreciable improvements have been accomplished toward increasing the burner capacity and radiation areas while utilizing a minimum amount of space.

A prime object of the invention resides in the provision of a room heater in which is embodied a manifold type of burner by which a dual arrangement of orifices is provided, one of which is located along the bottom of the housing and the other across the approximate midsection thereof whereby to substantially double the B.t.u. input without increasing the size of the housing.

Another object of the invention resides in the provision of a novel ceramic radiant which is readily adaptable to installation in a single series in a common plane or in a dual series, superposed in a manner by which the heat radiation capacity of a stove of any conventional dimension, utilizing a single burner, can be substantially increased.

Broadly, the invention contemplates the provision of a gas burner and radiant assembly for heating stoves by which two complete sets of burners and radiants can be economically installed in a single cabinet, thus increasing the B.t.u. input, without affecting the general appearance or shape of the stove, or its normal operation.

While the foregoing objects are paramount, other and lesser objects will become apparent as the description proceeds when considered in connection with the appended drawings wherein:

FIGURE 1 is a front elevational illustration of a heating stove embodying the invention.

FIGURE 2 is a vertical sectional view, on line 22 of FIGURE 1, showing the arrangement of the burner manifold and the dual arrangement of the radiants in association with the burner.

FIGURE 3 is an elevational view of the burner manifold.

FIGURE 4 is a perspective illustration of the radiant structure shown in superposed arrangement, and

FIGURE 5 is a perspective illustration of one of the radiant units.

The invention is primarily concerned with an improved gas burner which comprises a manifold formed of a continuous tubular casting formed rectangularly as shown in FIGURE 3, and in broken lines in FIGURE 1, and having a common inlet neck portion 11 on one end to which is attached an air mixer valve 12 of conventional design. A gas cock 13 is connected in the usual manner to the mixer valve 12.

Each of the two longer tubular side members 14 and 15 of the rectangular burner 10 has a series of bosses 16 equidistantly spaced therealong and each of the bosses has an orifice therein. The burner 10 is adapted to be positioned in a stove housing 17, as shown in FIGURES 1 and 2, so that the upper and lower members 14 and 15 are horizontal, and the apertured bosses 16 are directed upwardly. The burner 10, when arranged in the housing 17, is inclined slightly so that the upper member "ice 14 is olfset rearwardly from the vertical axial plane of the housing 17, and that of the lower member 15, so that each of the members 14 and 15 function as separate burners, the apertured bosses 16 on each being exactly perpendicular to the longitudinal axes of the members 14 and 15, as shown in FIGURE 2.

Formed with the lower member 15 of the burner 10 is a pair of lugs 18, each spaced from the respective ends of the burner 10 and depending downwardly to be secured by bolts 19, or similar device, to brackets 20 attached to the floor 21 of the housing 17, as shown in FIGURES 1 and 2, and which in turn are secured at each end by bolts 22 arranged through the depending flanges 23 of the floor 21 and the end walls 24 of the housing 17. It is desirable that openings 25 be provided in the floor 21 for the passage of air upwardly through the housing 17 past the burner 10.

An inner casing 26 is arranged in the housing 17 and is supported therein by spot welding 27, or other device, to the end walls 24 thereof through a right-angular flange 28 on each end of the rear wall 29 of the inner casing 26, as shown in FIGURE 2, an extension 30 of the rear wall 29 being bent forwardly at right-angles at the top thereof to complete an enclosure, with the end walls 24 of the housing 17, for the burner 10 and upper and lower series of radiants 31 which will be presently described more in detail.

The rear wall 29 of the casing 26 is spaced inwardly from the rear wall 32 of the main housing 17 and defines an air space 33 having a hooded outlet 34 near the top of the rear wall 32 of the housing 17, as shown in FIG- URE 2. It is desirable that the main housing 17 be provided with a rounded top 35, which may or may not be formed integrally with the rear wall 32 and the end members 24. The front opening 36 of the housing 17 is framed by top, bottom and side flanges 37, 38 and 39 which are angularly inclined inwardly and present a beveled appearance, as shown in FIGURE 1.

The side flanges 39 are tapered downwardly, their inner edges inclining rearwardly toward the top in conformity with the front surfaces of the radiants 31, as shown in FIGURE 2, the latter being illustrated in detail in FIG- URES 4 and 5.

One of the primary advantages afforded by the invention being that of a dual arrangement of burners 14 and 15, whereby greater heat radiation can be accomplished in a minimum amount of space, it is desirable to provide radiants 31 capable of superposed arrangement, as indicated in FIGURES 2 and 4, whereby a series can be positioned along each of the horizontally arranged burners 14 and 15 and present an attractive unbroken panel, as shown in FIGURE 1, and whereby neither of the burners 14 and 15 are visible.

Each of the radiants 31 have their front and rear surfaces 40 and 41 inclined upwardly and inwardly, their sides 42 becoming narrower toward the top, each having an angular recess 43 formed transversely of its front surface 40, across the top thereof, defining a projected portion 44 across the top of the rear surface 41. An arcuate recess 45 is formed in the lower end of each side 42 of each of the radiants 31 whereby, when these elements are arranged in series along the burners 14 and 15, the latter will be received in the inverted channels which are collectively formed by the juxtaposed radiants 31, in the manner shown in FIGURE 2.

When the radiants 31 are assembled in the housing 17 the lower series are supported on the floor 46 of the inner casing 26 over the lower burner 15. The lowermost edges of the front surfaces 40 of the upper series of radiants 31 are seated in the angular recesses 43 in the tops of the lower series of radiants 31, the lowermost edges of the rear surfaces being seated along an angular rail 3 1 47 secured across the rear wall 29 of the inner casing 26 intermediate the top and bottom thereof, as illustrated in FIGURE 2. In this arrangement the upper and lower series of radiants 31 will appear as shown in FIGURE 1 wherein the line of demarcation therebetween is unobtrusive, presenting the appearance of a solid panel.

Each of the radiants 31 is hollow and may be of any desired dimension. It is desirable, however, that the width of each be capable of accommodating two of the bosses 16 of the burners 14 and 15, as shown in FIGURE 1. Obviously, however, the radiants 31, instead of being unitized as depicted in FIGURE 5, may be formed together in an integral unit.

It is desirable, in the use of gas fuel, to provide means for producing some degree of humidity into the atmosphere, and it is contemplated that the housing 17 may be designed and constructed whereby a container for water can be arranged therein. Such a container is not illustrated in the drawing but may obviously be employed, if desired, and may consist of a pipe designed to encircle the lower burner unit 15 within the housing 17, and have perforations therein through which vapors can escape into the atmosphere, or an open container, such as a pan, may be used. Either of such devices may be designed to enable them to be filled exteriorly of the housing 17 or removed therefrom.

Other changes and modifications in the structure and design of the invention may be resorted to without departing from the spirit and intent thereof or the scope of the appended claim.

What is claimed is:

In a gas heater having a housing and a plurality of ceramic radiants in superposed arrangement therein, a

burner element comprising a rectangular tubular manifold having upper and lower burner members inspaced parallel relation, each having a series of spaced orifices therealong, a common fuel inlet for said manifoldhaving an air mixer valve therein, means for mounting said manifold in said housing whereby said upper burner member is located in the upper portion thereof and offset rearwardly from the vertical axial plane of said housing and the lower burner member, and a series of ceramic radiants arranged along each of said burner members, the said radiants having upwardly and inwardly inclined inner and outer faces, and formed with arcuate recesses transversely of their base portions whereby to embrace said burner elements longitudinally thereof in juxtaposed arrangement.

References Cited by the Examiner UNITED STATES PATENTS 971,859 10/1910 Lynch 12288 X 1,140,338 5/1915 Serrill 126-41 1,311,895 8/1919 Humphrey 12692 1,486,036 3/1924 Risinger 126-92 1,668,612 5/ 1928 Slattery 12692 2,454,195 11/ 1948 Moores 12692 2,638,879 5/1953 Hess.

FOREIGN PATENTS 524,591 5/ 1921 France.

117,428 2/ 1901 Germany.

FREDERICK L. MATTESON, IR., Primary Examiner.

ROBERT A. DUA, Assistant Examiner.

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