US3450346A - Space heater - Google Patents

Description

v. BlLlNSKl SPACE HEATER June 17, 1969 Sheet Filed July 27, 1967 v I KENTOR J w/W' 5v wast? E V m M m w w 3 Q June 17, 1969 Sheet Filed July 27, 1967 ATTORNEY z w 1% J11: |1| l i l I I I z ,A l'ullIY ll M N N N N I United States Patent 3,450,346 SPACE HEATER Victor Bilinski, 5007 N. Warnock St., Philadelphia, Pa. 19141 Filed July 27, 1967, Ser. No. 656,474 Int. Cl. F24h 3/08; F28d 15/00 US. Cl. 237--70 Claims ABSTRACT OF THE DISCLOSURE Summary It is an important object of the present invention to provide a space-heater construction of the type described wherein essentially all of the fluid, flowing both away from and returning to the heat source are employed to dissipate heat to the surrounding space, to achieve considerably increased efficiency, and permit of smaller heater units for a given size space.

It is a further object of the present invention to provide a space heater having the advantageous characteristics mentioned in the preceding paragraph, which is extremely simple in construction, durable and reliable throughout a long useful life, and which can be economically manufactured for sale, maintenance and use at a reasonable cost.

Other objects of the present invention will become apparent upon reading the following specification and referring to the accompanying drawing, which form a material part of this disclosure.

The invention accordingly consists in the features of construction, combinations of elements, and arrangements of parts, which will be exemplified in the construction hereinafter described, and of which the scope will be indicated by the appended claims.

Brief description of the drawing FIGURE 1 is a longitudinal sectional view showing a space heater constructed in accordance with the teachings of the present invention.

FIGURE 2 is a transverse sectional view taken generally along the line 22 of FIGURE 1.

FIGURE 3 is a longitudinal sectional view similar to FIGURE 1, but showing a slightly modified embodiment of space heater of the present invention.

FIGURE 4 is a partial longitudinal sectional view similar to FIGURES 1 and 3, but illustrating another slightly modified embodiment.

FIGURE 5 is a partial transverse sectional view taken generally along the line 5-5' of FIGURE 4.

FIGURE 6 is a longitudinal sectional view showing a further embodiment of space heater of the present invention.

FIGURE 7 is a cross sectional view taken generally along the line 77 of FIGURE 6.

Description of the preferred embodiments Referring now more particularly to the drawings, and specifically to FIGURES 1 and 2 thereof, a space heater is there generally designated 10, and includes elongate conduit means 11 located to extend through a space to be heated. At opposite ends of the conduit means -11 are respective connection means 12 and 13, while the conduit ice means 11 is provided substantially throughout its length with a plurality of heat-radiating fins 14 circumposed about the conduit means.

More specifically, the conduit means 11 may include an elongate single conduit or tube 18, fabricated of any suitable heat-conducting material, such as metal, and may advantageously be of circular cross section, see FIGURE 2. Extending longitudinally of and within the single conduit or tube 18, and transversely or diametrically thereacross, is a partition 19, also advantageously of suitable heat-conductive material, which subdivides the conduit 18 into a pair of longitudinally extending or parallel passageways 20 and 21 disposed in side-by-side relation within the tube, on opposite sides of the partition. In practice, the fins 14 may be integrally aflixed, or detachably circumposed about the tube 18, the several fins being disposed in generally parallel adjacent, spaced relation with respect to each other for increasing heat dissipation from the tube. v The connection means '12 may be defined by a tube or conduit 24 in the configuration of a loop connected in fluid communication between the adjacent, right-hand ends of passageways 20 and 21, as seen in FIGURE 1. The loop 24 of connection means 12 may be provided interiorly of one side with a heat source or generator 25-, say extending exteriorly of the loop for connection, as by wires 26, to a source of electrical energy. Also, a thermostat 27 may be provided at a lower region of the loop 24, and the system sealed against loss of fluid.

The connection means 13, connecting the adjacent, lefthand ends of passageways 20 and 21, as seen in FIGURE 1, may also include a tubular loop 28 connected in fluid communication between the passageways 20 and 21, and having in one region thereof a heat generator or source 29 provided for connection to electrical, or other suitable energy, as at 30. Advantageously, an expansion chamber may be provided, as at 31, communicating with one of the loops 24, 28, being illustrated as in communication with the latter.

It will now be appreciated that the pair of longitudinally extending, side-by-side passageways 20 and 21, each have their adjacent pair of ends connected in fluid communication, as by connection means 12 and 13, so as to define a closed fluid circuit, adapted to contain a heating medium, such as water, or other suitable fluid. The fluid may pass about the circuit of passageway 20, connection means 13, passageway 21 and connection means 12, in continuous movement, receiving heat as it passes through the connection means, so that heat is efliciently dissipated by the contained fluid along substantially the entire extent of both passageways 20 and 2-1.

The slightly modified embodiment of space heater shown in FIGURE 3 is generally designated 10a, and in? cludes an elongate conduit means 11a which may be of a thermally conductive tube 18a of generally circular cross section and having contained therein a longitudinally disposed, diametrically extending partition 19a. Surrounding the tube 18a, and arranged in spaced relation therealong, are a plurality of heat-dissipating fins 14a, which may be fixedly or detachably secured to the conduit.

The partition 19a subdivides the conduit or tube 18a into a pair of longitudinally extending, side-by-side passageways 20a and 21a. At one pair of adjacent ends of the passageways 20a. and 21a, say the right-hand end as seen in FIGURE 3, there is provided a connection means 12a. connecting together the passageways in fluid communication. The connection means 12a may be defined by a tubular loop 24a containing a heat generator 25a and provided with a superposed expansion tank 311:.

At the other, left-hand pair of adjacent ends of passageways 20a and 21a, there is provided connection means 13a connecting together the passageways in fluid communication. The connection means 13a may be provided by a cap or end closure 28a for the tube 18a, the end closure being spaced from the adjacent terminus of partition 19a to afford communication between the passageways 20a and 21a.

Thus, the space heater 10a of FIGURE 3 also provides a continuous circuit for containing a heating fluid, as through passageway 20a, connection means 13a, passageway 21a and connection means 12a. Here again, substantially the entire extent of fluid movement through both passageways 20a and 21a is in a heat-dissipating relation with respect to the surrounding environs, for maximum heating efficiency.

Another slightly modified embodiment of space heater is shown in FIGURES 4 and 5, there generally designated 10b, wherein elongate conduit means is generally designated 11b and defined by a pair of separate, longitudina ly extending tubes or conduits 20b and 21b, disposed in side-by-side, spaced relationship. The adjacent tubes or conduits 20b and 21b, of course, each include an internal passageway for contained fluid, so that the passageways thereof are in side-by-side relationship extending along the space to be heated. In practice, it may be advantageous to fabricate the conduits or tubes 20b and 21b of generally semicircular cross-sectional configuration, as seen in FIGURE 5, with their chordal or diametral sides disposed in adjacent, spaced, facing relation with respect to each other. A plurality of heat-dissipating fins 14b are disposed in adjacent, parallel spaced relation with respect to each other, and fixedly or detachably secured about the spaced conduits 20b and 21b. If desired, the fins 14b may be configured to occupy the space between conduits 20b and 21b.

At one pair of adjacent ends of conduits 20b and 21b, there is provided suitable connection means, such as 1211, which may be essentially the same as connection means 12a, to connect the conduits in fluid communication with each other and afford a source of heat to contained fluid.

The other, left-hand pair of adjacent ends of conduits 20b and 21b are also connected in fluid communication, as by suitable connection'means 13b, which may be defined by a cap, 28b surrounding the adjacent tube ends, and a filler member or plate 23 interposed between the tubes. Thus, a closed fluid circuit is defined by the space heater 10b of FIGURES 4 and through the conduit 20b, connection means 13b, conduit 21b and connection means 12b, wherein the conduits 20b and 21b afford paths of fluid movement throughout the space to be heated, with the fluid therein in heat-dissipating relation with the space being heated.

In FIG. 6 is shown a further embodiment of the present invention, a space heater there being generally designated c, including elongate conduit means 11c for extension through the space to be heated, and having at its opposite ends connection means 120 and 130.

The conduit means 11c includes a pair of conduits or tubes c and 210, the latter being smaller and interiorly of the former. In practice, the conduits or tubes 20c and 21c may be of generally circular cross-sectional configuration, the latter being considerably smaller than the former for location in spaced relation therein. That is, the inner conduit or tube 210 extends longitudinally within the outer tube 20c, so that the space between the interior of the outer tube and the exterior of the inner tube defines one fluid passageway, and the space within the inner tube defines another fluid passageway, which passageways extend in side-by-side relation longitudinally along the space to be heated.

The outer conduit 20c may be provided with a plurality of fins 14c extending circumferentially thereabout and projecting radially therefrom for dissipating heat to the atmosphere.

One pair of adjacent ends of conduits 20c and 210, the right-hand end as seen in FIGURE 6, is connected in fluid communication by the connection means 120, which may be substantially identical to the connection means 12a. The other, left-hand pair of ends of conduits 20c and 21c may be connected in fluid communication by the connection means 130, which may be constituted of a cap 280.

Thus, the heater of FIGURES 6 and 7 also provides a pair of elongate, side-by-side fluid passageways through the conduits 20c and 21c, both serving to dissipate heat to the surrounding environs, substantially throughout their entire length.

From the foregoing, it is seen that the present invention provides a space heater which fully accomplishes its intended objects and is otherwise well adapted to meet practical conditions of manufacture and use.

Although the present invention has been described in some detail by way of illustration and example for purposes of clarity of understanding, it is understood that certain changes and modifications may be made within the spirit of the invention and scope of the appended claims.

What is claimed is:

.1. A space heater comprising elongate conduit means extending along a space to be heated and having a pair of longitudinally extending fluid passageways in adjacent side-by-side heat exchanging relation, a plurality of heatradiating fins circumposed about and extending from said conduit means, a first fluid conducting loop depending from and connected in fluid communication between one pair of adjacent ends of said passageways, a second fluid conducting loop depending from and connected in fluid communication between the other pair of adjacent ends of said passageways, said conduit means and loops defining a closed circuit for containing and continuously conducting a unidirectionally flowing fluid, and heat-generating means associated with each of said loops in the region of upward fluid-flow therethrough, to provide a convection current of said fluid and substantially uniform temperature distribution along said conduit means.

2. A space heater according to claim 1, said conduit means comprising a single tube, and a longitudinal partition in said single tube subdividing the latter to define said pair of passageways.

3. A space heater according to claim 2, said single tube being of generally circular cross section, and said partition extending diametrically of said tube.

4. A space heater according to claim 1, said conduit means comprising a pair of adjacent spaced tubes, and said fins each extending about said pair of tubes.

5. A space, heater according to claim 4, said tubes each being generally semicircular and arranged with their diametral sides in adjacent facing relation.

References Cited I UNITED STATES PATENTS 1,511,056 10/1924 Ercanbrack -142 1,835,323 12/1931 Olson et al. 165142 X 2,509,138 5/1950 Dorn 23766 2,617,598 11/1952 Sanders 2375 3,179,788 4/1965 Uhlig 23716 X EDWARD J. MICHAEL, Primary Examiner.

US. Cl. X.R.

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