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Publication numberUS1281157 A
Publication typeGrant
Publication dateOct 8, 1918
Filing dateFeb 28, 1914
Priority dateJan 28, 1913
Publication numberUS 1281157 A, US 1281157A, US-A-1281157, US1281157 A, US1281157A
InventorsWilliam S Hadaway Jr
Original AssigneeCutler Hammer Mfg Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1281157 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


FLUID HEATER. APPLICATION min FEB. 2s, 1914. nrNfwEn DEC. 20. |915.

Patented oet. s


WILLIAM s. runaway, m., or New ROCHELLE, New Yonx, AssIeNoa To 'rIIacU'rLEainmune nre. co., orl MILWAUKEE, WISCONSIN, A CORPORATION or wIscoNsIN.

Leerdam Specieation of Letters Patent.

Patentedct. 8, 19.184.

iihxiitifputuot mea' January as, 191s, serial No, 744,725. Divided and this appuoauonlnied February 2.8, 1914, Serial No. 821,817. Renewed December 20, 19115.` Serial No. 67.954.

)gp im, fgwwmtna concern.' I Itrknovvn tat I, WIILIAIT S. HAD- nwlim 3dr., a; citizen of the United States, residing at New Rochelle, in the count of 5, Westchester and State of New York, ave ii'veted'4 new and useful Improvements in `g:ElLlidQ-,ijleatei'sl..of which the following is a 1,",g'clea`r, concise, and exact description, creusey beingk had to the accompanying ling, forming a part of this speclcanv'en'tion relates to improvements 'trie heaters.

application is a division of a "applicatlon Serial No. 744,725, filed 2.8, .1913, issued as Patent No. 8,1, 17 Leaf-,ed March 12, 1918.

L ltlhefobjects of the invention is to an improved Huid heater in which units may be readily ,gemgye .",izvithout dismantlin the beaten f obect is to 4provl e an improved 'ction or iuidheaters by means of aheater of any desired capacity ma ly,I assembled out of units of stan e .defeated-.Shapei Another object is to provide' a heater i ...beinexpensively manufactured "-qiekyytand leasily assembled.

en .fbjectis to @that .arte .may lace A fonfinspection and re alr. tferobectscand.advantages `o the in- .rhereinafterappean provide a heater in Klis..

lng 'drawings illustrate n ntetheinvention. The views draw' gs areas follows:


a; slideelevatin of thd heating lsectional view on the line 3-3 l with the lresistance 4units removed e r containers.- y

ist sectienel View from' lgghe-ati'g chamber comprises'a tubular ne y,reglv-p'paiera-bly a-metal cyhnder pro- [v1 ed lwit a -cap 2 having screw threaded engagement therewith, the latter having a screw threaded ripening@` ada ted to be coninected to a pipe. The cylin er has secured to the llower end thereof a ri 4 made preferably, of cast metal and.V aving screw secured thereto an additional ring 6 e readily removed n asectiona1'e1evation of a four on the line 4-4 i threaded engagement therewith; said ring having a screw threaded opening 5 for vthe attachment of another ipe. The rin- "4 has aving both vertical and ,horizontal anges as shown, said ring serving to secure between itself and the rmg 4 a metal disk 7 and a washer or gasket 8 preferably of rubber. These parts are held in p'osltion b the screws 9, which pass upward throug the horizontal flange of the-ring 6 into the ring ,4, whereby the metallic disk is firmly clamped in place and a water tight connectlon is secured. A metallic casin '10 is scf e ring 6,

' 'ro l,

cured within the lower part of t by means of suitable screws 11.

The disk 7, which is made preferably of copper, has a plurality ofopenings therein, four in number in the present instance 12. f course, a 4greater or less number of ,containers may be employed, depending on `throu h which pass sheet metal containers,

my (zo-pending a plicationp hereinbefore mentioned, in whic a l'slotted metalfribbon is employed. .The rojecting ends 13 of said ribbon are clampe'v together below theinetal"4 disk Vas shown in V2, the individual ends beingseparated from each other' by mica s acers 14. 'A screw threaded stud 15 asses tiirugh suitable openingsl in the metalginsulation, nuts 16 being employed to clamp the parts together. Suitable U shaped jumpers 17 are also employed, whereby the circuit ma be completed "to the individual.; units, and' the circuityconnections may bev readily varied if desired.` Suitable terminal 'finembers 18` arealso clamped: between the nuts 16 and are so disposed as to' give the desired' circuit connections, Screws l194 are einployed to clampthe circuitlconductorsyto theterminal members 18, said circuit "com ductors enteringthrough the opening of 4the casing 10.

as L

e terminal members 18;;'are -Ymru Y referably spread out radially 'as shown in ig. 1, to facilitate the, securing. of tbecoe" passes u is' heate ductors beneath the heads of the terminal screws 19.

It will be seen that the containers 12 are supported by the metal diaphragm, .and hence may be readily assembled within the heating chamber and as readily removed. They ma however, be reinforced at their upper en s by means of a suitable cross .strip 20, the latter being secured tov the inner walls of the tube 1. A faucet or lstop cock 21 is mounted in a suitable opening in the ring 4, whereby the heated fluidv may be drawn oi if desired. V

In operation, the heating chamber is ordinarily in communication with apiping system through which the fluid flows, the fluid` entering through the opening 5 and leaving through the opening 3 whereby it wardly around'the containers and by the heating units, thereby insuring circulation in the direction indicated. The piping system may be connected with a suitablereservoir, wherebythe heater may be used to heat a body of liquid much in excess of lthe capacity of the heating Chambon Inasmuch as the heating units are inserted into their containers from below the supporting ldisk .7, itis apparent thatany one 'o 'r all of said units may be removed and replaced at will by 4sim ly disconnecting the various terminal menagere, but without disturb'ing the water tight connection between the 'containers and their supporting disk. Furthermore, the heating 4capacity ofthe device may be varied by removing the diskl or head and substituting in its place one hav-v ing a greater or less number 'of containers and heating units. The circuit terminals being arranged within the casing -10 are protected thereby, but access thereto may be ad readily by removing said casing; InaSmuc'h as the device is supported y the with which it is connectedLand not ysald casing, which constitutes the 1owermostpart` thereof, the removal ...of said casing may be conveniently accomplished.

' It `1s to'be understood that I do not desire to 'limit myself tol the details of construction described and illustrated, exceptwhere limitations are imposed in the appended claims. y

Having thus described my invention what I 'claim as new and desire t0 Secure by Let 1 ters Patent of the United States is:

1. A fluid heater comprising a fluid receptacle havingan opening 1n the wall thereof, 'a tubular member secured to Said wall atsaid opening and extendinginto 'said receptacle, anelectric heating unit'fitting withinV said tubular memberjsaid heating unit. being longer than said tu' ular member,

whereby a portonthereof is not nclosed by.' said member, circuit terminals carried by `ri'ed by the fluid from said chamber.

iid receptacle for lnclosn iijppaar end, .and connected at its' lower end ytubular member throughout substantially its said bottom wall at said o ing, n ectric heating unit fitting within sa d enti-re length and projecting downwardly helpw sai' receptacle, circuit terminals carproJecting end of said unit', and a casing associated with the lowerend of said receptacle, within which said circuit terminals are housed.

3. An electric water heater comprising a heating chamber, a plurality of metallic containers passing through the bottom wall thereof and supported thereby, each container being open at its lower end, a heatingl unit'fittng within each of said containers whereby any of said units may be removed therefrom, cir.-

by drawing it downwardly cuit terminals carried by said beati units and means for, drawing off the heats? liquid from said chamber.

4. A. fluid heater comprising a Vheating chamber having side walls, a cap' and a bottom diaphragm, a pluralit vof sheet metal containers passing upwar ly through v'said diaphragm into the heating chamber, 'ja pluralit of electrical heating units arranged withln said containers, each heating unit havin a sliding fit in the corr nd contaiicr, circuit terminals carried hy heating units below said diaghragm and means permitting the iow of uid through said heating chamber.

5. An electric water heater comprising a cylindrical tube, a cap having screw threaded engagement with the top thereof, a ring secured to the lower end thereof, a, diaphragm clamped between said said su ntiallyl cylindrical tube, a plurality of Earallel sheet metal containers Sup rtcdy said diaphragm and extending'wtentially to the top of. said tube, gah olf-hid oontainers being closed at the top and oming through'said diaphragm, an electric heating unit removably secured within 1each of said containers, circuit terminals by said units below said diaphragm, ill- 6951118 said ring, 'and means for, drawingjo In witness whereof, I have hereunto sub1 witnesses. WILLIAM S. HADAWAY, Jn, Witn: 1

G. P. Bnocxwar, STANTON C.`F1Ncn casing for said terminals' securedfto 1-aa' scribed my name in the presence o'ff' 'two1v

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4401882 *Aug 26, 1981Aug 30, 1983Technicare CorporationPlumbing fitting
US5113480 *Jun 7, 1990May 12, 1992Apcom, Inc.Fluid heater utilizing dual heating elements interconnected with conductive jumper
US5703998 *Oct 20, 1994Dec 30, 1997Energy Convertors, Inc.Hot water tank assembly
US6188051Jun 1, 1999Feb 13, 2001Watlow Polymer TechnologiesMethod of manufacturing a sheathed electrical heater assembly
US6263158May 11, 1999Jul 17, 2001Watlow Polymer TechnologiesFibrous supported polymer encapsulated electrical component
US6392206Aug 4, 2000May 21, 2002Waltow Polymer TechnologiesModular heat exchanger
US6392208Aug 6, 1999May 21, 2002Watlow Polymer TechnologiesElectrofusing of thermoplastic heating elements and elements made thereby
US6432344Nov 4, 1998Aug 13, 2002Watlow Polymer TechnologyMethod of making an improved polymeric immersion heating element with skeletal support and optional heat transfer fins
US6433317Apr 7, 2000Aug 13, 2002Watlow Polymer TechnologiesMolded assembly with heating element captured therein
US6434328Apr 23, 2001Aug 13, 2002Watlow Polymer TechnologyFibrous supported polymer encapsulated electrical component
US6516142Feb 12, 2001Feb 4, 2003Watlow Polymer TechnologiesInternal heating element for pipes and tubes
US6519835Aug 18, 2000Feb 18, 2003Watlow Polymer TechnologiesMethod of formable thermoplastic laminate heated element assembly
US6539171Jan 8, 2001Mar 25, 2003Watlow Polymer TechnologiesFlexible spirally shaped heating element
US6541744Feb 12, 2001Apr 1, 2003Watlow Polymer TechnologiesPackaging having self-contained heater
US6744978Jul 19, 2001Jun 1, 2004Watlow Polymer TechnologiesSmall diameter low watt density immersion heating element
US6748646Feb 21, 2002Jun 15, 2004Watlow Polymer TechnologiesMethod of manufacturing a molded heating element assembly
US20050098684 *Mar 14, 2003May 12, 2005Watlow Polymer TechnologiesPolymer-encapsulated heating elements for controlling the temperature of an aircraft compartment
U.S. Classification392/489, 219/523, 392/500, 392/497
Cooperative ClassificationF24H1/102