US2903245A - Baseboard radiators - Google Patents

Description

Sept. 8, 1959 R. w. KRITZER BASEBOARD RADIATORS 2 Sheets-Sheet 1 Filed Dec. 20, 1957 INVENTOR. ,Za/Mrrl if 2% Sept. 8, 1959 R. w. KRITZER BASEBOARD RADIATORS 2 Sheets-Sheet 2 Filed Dec. 20, 1957 T fa BY izziflfiorlgg.

Zzchzrd 71 A nited States Patent 'BKSEB'OARD 7 Richard W. Kritzr, Chicago, Ill. Application December 20, 1957, seas! No. 704,072

2 Claims. (Cl. 257- 133) The invention relates to radiators of the baseboard type which are adapted to extend along a floor and back-wall of a room for heat-transfer into the surrounding room.

One object of the invention is to provide a radiator of this type which is simple in construction, efiicient in heat conduction and can be economically fabricated.

Other objects will appear from the detail description.

The invention consists in the several novel features which are hereinafter set forth and are more particularly defined by claims at the conclusion hereof.

In the drawings:

Fig. 1 is a vertical longitudinal section of a radiator embodying the invention, one fin-structure being shown in elevation;

Fig. 2 is a fragmentary front elevational View of a portion of the structure shown in Fig. 1;

Fig. 3 is an end elevational view of the structure shown in Fig. 1;

Fig. 4 is a sectional view taken substantially along the line 4-4 of Fig. 1; and

Fig. 5 is a perspective view of a portion of a fin structure employed in connection with the invention.

The invention is exemplified in a sheet-metal casing, generally designated 10, and adapted to extend along the back-wall .11 and the floor 12 of a room or enclosure to be heated. The casing comprises a front-wall 13 and a top-Wall 14 which extend longitudinally of wall 11, and end walls 15. Casing is removably secured against back-wall 11 by strips 16 (Fig. 4) which are fixed to the room-structure and are provided at their upper ends with clips 17 for engaging a downturned back-flange 18 on the rear of top-wall 14 and at their lower ends with arms having clips 19 for engaging a rearwardly extending flange 20 on the lower end of the front-wall 13. Endwalls are provided with slots 24 which form inlets for air into the casing.

A pipe or conduit 25 for circulating a heating fluid, such as steam or hot water, from a suitable source (not shown) extends longitudinally through the lower portion of the casing and through end-walls 15. Heads 26 serve to support the pipe 25 in the end walls 15. A pair of fin structures, generally designated at 28, are secured on pipe 25 and extend between a point adjacent end-walls 15 and a space adjacent the longitudinal center of casing 10 for conducting heat from the fluid circulating through pipe 25 to air passing from inlets 15 longitudinally of and to the center of the casing 10. Each structure 28 includes a series of transverse fins serially connected alternately by integral front and rear end-walls. Each fin includes a planar transverse face or body 29 of rectangular contour, front and rear connecting end-walls 30 and 31 between adjacent fins, and an opening surrounded by an annular flange 32 fitting around and coaxial with pipe 25. Each fin extends above and below pipe 25 and is provided above and below said pipe with a central vertical slot 34 having integral angular flanges 35 extending longitudinally of casing 10 and slots 36 in front and back of slots 34. The slots 34 and 36 in each fin-structure are longitudinally 2,903,245 Patented Sept. 8, .1959

ICC

2 aligned for the flow of air from inlets 24 towards the longitudinal center of the casing and in contact with the fins. I

V A pair of air-impellers 50 are mounted at't-he longitu dinal center of the casing 10 and are driven by an electric motor 51. Each impeller is provided with a casing 53 having an outwardly facing intake 52 adjacent theinnerend of one fin-structure, a propeller-wheel 54, and a 'dis' charge trunk 55 leading from theycasing 53 to a register valve-56 which is .pivotedin a .plate 57 secured to the front-wall 13 of the casing for discharging heated air under pressure from casing 53 through the front of the casing into the surrounding room. Each plate 57 has a sleeve 58 in which trunk 55 is slidably and telescopically fitted to permit removal of the casing 10 from the backwall 11 for access to the stationary parts in casing 10.

The casing 10 and pipe 25 may be of any desired length according to the available space along the base of the back-wall and the desired heating capacity. A recess 60 is formed on the back-wall 11 to accommodate the impeller casings 53.

The operation will be as follows: assuming a heating fluid, such as hot water or steam, is circulating through the pipe 25 and motor 51 is driven, the impellers 50 will draw air through inlet slots 24 in the end-walls 15 and inwardly longitudinally of the casing 10 toward the outwardly facing intakes 52 of impeller casings 53. In transit to said intakes, the air will successively contact the fins of structures 28 and be drawn through the aligned slots 37 and 38 into impeller casings 53 for transferring heat from pipe 25 to the air flowing longitudinally in the casings 53. The propeller-wheels 54 will discharge the air under pressure through the trunks 55 under control of valves 56 to the outside of the casing and into the surrounding room.

The invention is not to be restricted to the details set forth since these may be modified Within the scope of the appended claims without departing from the spirit and scope of the invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A baseboard radiator adapted to extend along the juncture between a floor and Wall structure, said radiator comprising in combination an elongated casing including front and rear walls respectively, top and bottom walls respectively, and end walls closing the opposite ends of the casing, a fluid conduit in the form of a cylindrical tube extending longitudinally through said end Walls and the interior of the casing and adapted to communicate with a source of heating fluid, there being air inlet openings above and below the level of said conduit in said end walls, a twin-blower assembly disposed within the casing medially of its ends above the level of said conduit and overlying the latter, said twin-blower assembly ineluding longitudinally spaced impellers having axially aligned air inlets facing outwardly in opposite directions and facing said end walls respectively, an electric motor disposed between said impellers and operatively connected thereto in common for driving the same, said impellers having radial air discharge outlets facing said front wall, there being a pair of air outlet openings in said front wall in sealed communication with said air discharge outlets respectively, and a series of closely spaced fins mounted on said conduit on each side of said twin-blower assembly and in heat-conducting relationship to the conduit, the various fins of each series extending transversely of the casing and radially of the conduit and presenting transverse surface areas conforming substantially to the crosssectional configuration of the casing whereby the flow of air longitudinally through the casing inwardly thereof from the inlet openings around at least the bottom and side edges of the fins is substantially restricted, there being a series of transversely spaced slots in each fin of each series of fins above the conduit and a series of transversely spaced slots in each fin of each series below said conduit, the height of the slots which are above the conduit being at least as great as the height of the blower air inlets, all of the slots above the conduit being in longitudinal register with one of the blower air inlets whereby air entering each air inlet opening in an end wall may pass directly and successively through the slots of one series of fins and enter one of the impeller air inlets, the corresponding slots of each series of fins below said conduit being in longitudinal alignment.

2. A baseboard radiator as set forth in claim 1 wherein there are three transversely spaced slots in each fin of each 4 series of fins above the level of said conduit including a relatively wide medial slot and a relatively narrow slot on each side thereof, and including, additionally, longitudinally extending vertically disposed side flanges projecting laterally from each fin along the side edges of each medial slot.

References Cited in the file of this patent UNITED STATES PATENTS 1,983,549 Krackowizer Dec. 11, 1934 2,063,736 Hardiman et al Dec. 8, 1936 2,503,667 Hagen Apr. 11, 1950

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