US2980402A - Base-board radiators - Google Patents

Description

Aprll 18, 1961 A. w. LUNDsTRUM BASE-BOARD RADIAToRs 4 Sheets-Shee 1 Filed Sept. 19. 1957 INVENTOR. Allon W. Lunds'rrum BVMW.

ATTORNEYS April 18, 1951 A.w.LUNDs1-RUM BASE-BOARD RADIATORS 4 SheetS-Sheet 2 Filed Sept. 19. 1957 v/llll/ INVEN'TR. Allan W. Lund s'rrurm ATTORNEYS I April 18, 1961 A. w. LuNDsTRUM 2,980,402

BASE-BOARD RADIATORS Filed Sept. 19, 1957 4 sheets-Sheet s l 3'8 'l l Il I l L 1i FIGA! INVENTOR. Allon W. Lunds-'rrum 12x/1,7% .wa

I ATTORNEYS April 13, 1961 A. w. LUNDsTRuM 2,980,402

BASE-BOARD RADIATORS Filed SeApt. 19, 1957 4 Sheets-Sheet 4 39u 44 sob 30C 30d l, Q ,l l f H-IIIIIIIIIIIHIIIIIHIIIHIHIIIIIIIIIIIIHII lIIIIIIIIIIIHIIIHIIIIIIIIHHIIIIII||||l|||"\ 26v 2O 28 F|G.I5 FIGJG INVENToR. Allan W.Lundstrum Byhmgw, Mm

ATTOR N EYS arent 2,980,402 Patented Apr.

BASE-BOARD RAnrArons Allan W. Lundstrum, Ohio Fuel Gas Co., 99 N. Front St., Columbus, Ghio Filed Sept. 19, 1957, Ser. No. 685,036

6 Claims. (Cl. 257-133) This invention relates to radiators for space heating and more specifically to a novel and improved heat radiator for heating homes, oiiices and the like that is particularly useful as a so-called base-board radiator.

Many types of radiators for Yspace heating have been proposed and known structures have not been found entirely satisfactory for a number of reasons, among them being the relatively high cost of manufacture and installation. While base-board radiators are generally fabricated in sections, each section is generally formed of a number of individual components for assembly when the equipment is installed. This greatly complicates installation procedures and adds materially to the cost of the heating plant. Other disadvantages of prior known radiators of the base-board type include the relatively inefficient utilization of space to obtain maximum transfer of heat to the ambient air, `the relatively complicated mounting procedure and the requirement of special tools and equipment for assembly and joinder of the sections.

The above and other disadvantages of prior radiators are overcome with this invention which is characterized by its simplicity, ease of installation, and improved etliciency and appearance.

Another object of this invention is to provide a basic heat exchanger section of utility especially in and for sectional base-board radiators and incorporating on one attractive die cast part a channel for a heat carrying fluid, a channel for directing air being heated across the heated surface, sturdy and damage-resistant heat conducting tins, and a mounting therefor which will enable substantially unrestricted expansion and contraction of the section or sections due to temperature changes.

Another object of the invention resides in the provision of a sectional base-board radiator employing such basic sections that affords etiicient utilization of space for maximum transfer of heat to the air and whose sections are provided with improved telescopic connectors which greatly facilitate coupling the sections one' to the other so that they may be joined together using a drive't joint with suitable adhesive sealant'and desired lengths achieved without cutting, iitting,v threading, welding or soldering.

Still another object of the invention is the provision of au improved sectional base-board radiator wherein each section constitutes a complete, substantially unitary structure that can be readily attached to adjoining sections and to a supporting wall and is soV constructed and arranged as todirect heat away from the wall to prevent wall streaking.

A further object of the invention resides in the provision of novel input and output terminal sections for such improved basic heat exchanger sections, which are die cast and permit easy and quick connection to such sections and which make possible easy and quick con nections to fluid conducting tubes or pipes either from below through the oor or from the back through the wall, whichever is more convenient, with minimum labor and structural changes.

A still further object of the invention resides in the provision of a simple and inexpensive valve as a part of one terminal.

The above and other objects and advantages of the invention will become more evident from the following description and accompanying drawings forming part of this application.

In the drawings:

Figure l is a front elevational view of a sectional baseboard radiator in accordance with this invention;

Figure 2 is an enlarged fragmentary front View in partial section of the base-board radiator of Figure 1;

Figure 3 is a cross sectional View of the input valving means taken along the line 3 3 of Figure l;

Figure 4 is a cross sectional View taken along the line 4 4 of Figure 2;

Figure 5 is a top view of the' input terminal means of Figure 2 with vthe valving means removed;

Figure 6 is a top view of the output terminal of Figure 2;

Figure 7 is a side elevational view of the input terminal taken in the `direction of the arrows 7 of Figure 5;

Figure 8 shows a side elevational view 'of the output terminal taken in the direction of arrows S of Figure 6;

Figure 9 is a rear View of a heat exchanger section of the base-board radiator of Figure l;

Figure 10 is a cross sectional view taken along the line Mi-10 of Figure 9;

Figure l1 is a cross sectional view of the heat exchanger section taken along the line 1li-11 of Figure 9;

Figure l2 is a front elevational view of a modified embodiment of the invention;

Figure 13 is an enlarged fragmentary section of the embodiment of Figure l2 illustrating the coupling of a radiator section to the input terminal section;

Figure 14 is an enlarged `fragmentary section of the embodiment of Figure l2 illustrating the coupling between a radiator section and the output terminal section;

Figure 15 is a cross sectional view taken along the line 15-15 of Figure 13; and

Figure 16 is a cross sectional view of Figure 14, taken along the line 3.6-16 thereof.

Referring to Figure l, the base-board radiator in accordance with the invention is denoted by lthe numeral 20 and includes a heat exchanger having a plurality of similar heat exchanger sections 24a to 24d, an input terminal 26 for connecting the heat exchanger to a fluid inlet pipe 32, and an output terminal 28 for connecting the heat exchanger to a Huid return 34. 'l'lhe heat exchanger sections 246.' through 24d are coupled to each other by telescopic coupling means 30h, 30e and 30d. Similar coupling means 30a and 30e connect the heat exchanger sections to the input terminal 26 and to the output terminal 28. Since the heat exchanger sections 24a through 2li-d and the coupling means 30a .through 30e are substantially identical, it is possible to assemble a base-board radiator using any desired number of sections in series with the ends being terminated by the terminal members 26 and 28.

More specifically and with reference to Figures 2 through ll, each heat exchanger section 24a through 24d includes a conduit di?, a plurality of ns 42, a deector 44 and a mounting hole 46. Each section is pref; erably fabricated by die casting with the conduit 40 and the fins d2 formed integrally one with the other. The conduit 4t) for the heated fluid is tapered in plan as w-ill be observed from Fig. 4. it has its smallest section in the center and gradually increases in size toward both ends, thus permitting the core used in the die casting to be withdrawn. Notwithstanding this gradually increasing across-section, the front and rear walls of theV heat exchangerrsection are maintained at a substantially j ..1 'Y v y assegna form thickness over substantially the length of the'co'nduit, thus ensuring the preservation of maximum strength and most eicient utilization of the die casting material. it be-.Qbser-Yed ,from .Fig- 14 that the .heat radiating ii'ns'42` though co-planarL insofar as their tipsraregcon? cerne'dare 0f greatest 1f r1gtlf1` at the. tenter, Qf the Section in conformitr with the presen/ati@ ofthe urliformiwall thicknesspver thelength of the section.- `rl`he ns 42es;

, sentiallydetine the contour of the section withthecon duit 40 disposed near the front to form arrelatively long pathr` for the circulation of fair therethrough and Vthus utilize thespace'occupied by thel radiator mostetedtiyely preferably integral and preferably fabricated as a unit and efficiently'. Ylvioreover, with the integral'construction Y to the-iin surfaces isvobtainedflhetop ofV 1eachsection Y 24a to 24d isvatfleast partiallyiclosed vby a deflector 44 integrally formed-'with fthe fins 42. With`thisarrange ment the heated air is deected outwardly'awayfrom the'walLto minimize ,soiling ofthe wall surface above the radiator and-'additional mechanical support is aiorded thensAZr/w.' if' a'. Y Y- Each heat exchanger section 24a through 24d includes longitudinally elongatedY and preferably recessed mounting; hole"46 extending ,therethrough to accommodate la screw Vor bolt (not shown),for Vfixing each section 24'individually to the wall or Wallbaseboard in the assembly offtheV base-board radiator '20.,1`The elongation of the mounting hole 46 is shown more clearly in Figure 2, the

hole being formed when the 'section is cast. In thisjway complicated mounting means are avoided and contraction and expansion of the section or sections' due to' tempera; turegchangesis allowed for.

Y of the; conduit '40 and-'fins 42, maximumjtransfer of heatV from a heat resistant plastic'to permit a smooth self lubricating rotation. The input terminal'section is preferably die-cast inthe same manner asj'the radiator sections. By reason of the `improved arrangement of valve elements in terminal 26, twoy or Ymore inlet openings 52 and 54 may be provided to facilitatejconnection of the radiator to the heating system. In the illustrated embodiment, eitherY of inlets 52Vand 54 may be used for mak- Inorder to'facilitate quick'and easy connection ofthe 'sections24'a,r7Ab, etc; one to the other andto the end terminals, each section is provided at its ends with tapered male and female end connectors denoted by the numerals 36 and 38, respectively. The male connector part 36 is die cast integrally with its associated radiator sectionand has 'an opening corresponding to the shape and area of the, opening of conduit 40. The femalel connector part 38 isgin the form of a tapered opening 38 for telescopically receiving the male Aconnector part 36 of an` adjoining section in a drive -iit joint to form a water-'tight seal with ai continuous, uninterrupted passage through" both' sections. Preferably, a suitable heat Vresistant adhesive sealing compound is used in the joints to insure a more positive fseal. i It willv be observed'that any Vdesired length of exchange'rxsections together without cutting, `fitting, threading, welding-or soldering. f 'i' The'input terminalA section 26 which controls the/flowofY heated iluid to the heatexchanger comprises essentially Y.ai hollow tapered maleV connecting .member .36a

vcommunicating "withi an Vexit passage 50 to permitfflow f to.-the1heat exchanger, rbottom and back entry ports'52,

54,'res'pec`tively, for accepting heat carrying uid fromV asupply pipe 32, and a tapered orfconical valve charn- Vber 56." p

The-male connecting member36 is adapted to be seated inthe tapered opening 38 of the'heat exchanger section 24fin a drive4 iit joint in the same manner as one section 24 is connectedrto the next. i The input terminal section also comprises a rotatable valve member 58 which is in the form of a truncated cone .Y as shown and seats in the conical chamber 56. The lower ing connection with supply pipes of the heating system. Asrshown Vin, Figure 1=theY supply pipe 32 extends up` wardly through the oor to connect withinlet 5.2 but it may extend forwardly through the wall, so as to connect with theback inlet 54. In, either case theunused inlet would Vbe plugged as by'means of-,a suitable threaded plug(not shown), theinletrbeing usuitably threaded, as shown, to receive the plug. Thus, the installationV of the Vradiatoris not restrictedfto a particular'mode of con'- Vnectionyand'there is no` need Vfor conventional coupling means such as elbows and the like. The outlet terminal section 28 for returning heat'carrying uid from thje'terminal heat exchanger section to the uid return pip/e4 34includes a tapered opening 38a for acceptinga Vtapered male connecting member such as the'c'onnector part 36 offa radiator section124, an entry'port 70 for receiving fluid from the enclosed channel 40 ofthe 'adjoining radiator section, exit port 72 and 74 forV connecting the terminal to an'outlet pipe such as pipe 34 of FigureY 1 and ach'amber 76 Yinterconnecting the entry port 70 to the exit ports. Figures 6 and 8 illustrate the outlet terminal 28and show the right angular relationship between the exit ports.'V i

t A modified base-board radiator 20 is shown in Figure 12 andrincludes improved locking means 80 for holding radiator may, thus be" obtained by coupling the basic heat the sections24 and terminals'26 and 28 in position .one relative Vtothe other. VAs embodied inthe basic radiator sections, the locking means consists of a slot in one end of the basic section and a'lip on Vthe other end. When tw adjacent sections aretelescoped together. the lip can be `spru'ngor driven into the slot toV prevent the sections from being pulled apart. This willY relieve the adhesive sealant of any strainin tension. 'Figure to 16 show details of this/improved feature.

' -f .Thecoupling locking means Y80 shown inFigS. 13 and -15 includesa VYgroove 82 spacedfromfthe base of the tapered' connecting -inember 36d by an inclined ramp 85.

A'tab 88 extends from the front wall ofthe adjointing radiator portionv and has va vertical groove 83 spaced from the end to Vform a 'tapered latching member 84 whose front' face 86 isa prolongation of the 4wall 3 8 of the connector736.' /When adrive lit ioint-isbeing` established, the vlatch 84 Vis sprung slightlyl outward and rides over the inclined surface of the tapered `member 2 6' and the ramp 85. When the adjoining radiator sections are properly connected the latch 84'engages theV groove 82 to secure the connected sections one to the other.

" Figures 14 and 16Yillu`stratethis latchingV arrangement as applied to the opposite Vend of a basic section 24 and terminal 28. The elements of these 'figures corresponding to' elements of Figures 13 and 15 have been designated byY like primed'numerals. `It will be understood that the locking means rSilb, c` and d for connecting the successive radiator' 'sections one to the Aother are similarly yconstructed; 'j fif j `v With the` locking means as described above, the radiatorsectio'nsare firmly and postivelysecured oneto the otherand ,will not separate even when sulaje'zfzgtedf,to continud vibration Vof 4sudden' changesin ten'lperature -and the adhesive sealant is relieved of any strain in tension.

While only certain embodiments of the invention have been described, it is apparent that modications, alterations and changes may be made without departing from the true scope and spirit of the present invention as dened by the appended claims.

What is claimed is:

1. A base-board radiator comprising: a die cast inlet terminal section having a tapered male connector part and having valve means including a tapered valve member and a tapered valve seat therefor, for regulating the oW of heated iluid to the base-board radiator; a die cast outlet terminal section for discharging uid from the base-board radiator, said outlet terminal having a tapered female connector part; and a plurality of nned radiator sections coupled together in end-to-end relation and to said inlet and outlet terminal sections, each said radiator section including die cast top, bottom, front and rear walls integral with each other and spaced apart to form an elongated substantially smooth-bored uid conduit extending lengthwise of the section from endto-end thereof, said conduit gradually increasing in size from the center toward both ends and terminating at its one end in an internally tapered female connector part, and at its other end in an externally tapered male connector part, said male and female connector parts being coaxially aligned with each other and with the lengthwise axis of said conduit, and said top, bottom and rear walls only having, exteriorly, a set of die cast tapered heat radiating fins integral therewith, said fins being generally parallel to each other and perpendicular to the lengthwise axis of said conduit, said ns also extending generally rearwardly from said front wall to and beyond said rear wall, and having side walls which are converging in the direction from front to rear, said inlet terminal having its male connector part sealingly, telescopically received in the tapered female connector part of the first of said radiator sections, and said outlet terminal section sealingly, telescopically receiving in its tapered female connector part the tapered male connector part of the last of said radiatorV sections.

2. A base-board radiator in accordance with claim 1 in which the front and rear walls of each radiator section are of substantially uniform thickness over substantially the length of said conduit.

3. A base-board radiator in accordance with claim 1 in which the front and rear walls of each radiator section are provided each with an aperture for the passage of a fastening device from front to rear of the section, the

apertures being interconnected and sealed off from said conduit by a hollow bridging member integral with said walls.

4. A base-board radiator in accordance with claim l in which the set of heat-radiating tins is provided with a deflector member for dellecting heated air away from an adjoining wall, said deector member being disposed along the top edge of the lins of said set and integrally connected thereto.

5. A base-board radiator section comprising die cast top, bottom, front and rear walls integral with each other and spaced apart to form an elongated substantially smooth-bored Huid conduit extending lengthwise of the section from end-to-end thereof, said conduit gradually increasing in size from the center toward both ends and terminating at its one end in an internally tapered female connector part, and at its other end in an externally tapered male connector part, said male and female connector parts being coaxially aligned with each other and with the lengthwise axis of the conduit, and said top, bottom and rear walls only having exteriorly a set of die cast tapered heat radiating ns integral therewith, said tins being generally parallel to each other and perpendicular to the lengthwise axis of said conduit, extending generally rearwardly from said front wall to and beyond said rear wall, and having side walls which are converging in the direction from front to rear.

6. A base-board radiator section in accordance with claim 5 in which said front and rear walls are of substantially uniform thickness over substantially the length of said conduit.

References Cited in the le of this patent UNlTED STATES PATENTS 764,395 Sweed et al. July 5, 1904 1,032,649 Beniek July 16, 1912 1,403,396 Erickson Jan. 10, 1922 1,737,633 Beach Dec. 3, 1929 1,758,266 Smith May 13, 1930 1,904,061 Larson Apr. 18, 1933 1,915,226 Hamacher June 20, 1933 1,940,152 Steele Dec. 19, 1933 1,962,837 Raible June 12, 1934 2,212,201 Daly et al Aug. 20, 1940 2,692,762 Schenke Oct. 26, 1954 FOREIGN PATENTS 18,625 Great Britain Sept. 21, 1895

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