US2448956A - Electric portable stove - Google Patents

Description

p 1948. E. cHRISTENSEN 2,448,956

ELBcTRc PoRABLB STQvB Fied Aug. 22, 1946 ATTOR NEY Pafented Sept. 7, 1948 UNITED STATES PATENT oFFCE The pfesent invention felates to poftable electrio heating devices and is Inofe pafticularly oon oefned vvith elecffio utility Stoves vvhioh featufe oonlpactneSs in spaoe and 1ightness in weight.

1e pTeSent invention conoernS itSelf pafticu lorly vvith the pfovision of a heating apparatus that nlay be ealSily packed and oarfied with tfaveing luggage, and one Which Will afford univer sa1 11tility particularly to the itinefant user of SInan apaftInent of hote1 dve11ef. It p1ovideS a single heating elenlent of the fod type Which is deSigned With reSistance vvires infernally of a Sheathing that n1ay be connected variabl unde1 the oontfol of a switch knob so afS to affofd thfee degfees of heat. T'he heating elenlent iS Suppoft ed in cantilevef Inanner ffoIT1 one of itS ends and suppleInentaril upon a tTanSvefse truss rod. A table platfoffI1 of the unit is Spaced beneath the trusS Tod and heating coi1 a.t such a diStance as to admit the insertion therebetween of downWardly heafed lltenSilS, S11oh as broiling pans of grids. A she1f plate and heat feflector is supported fron1 the table stfucture so aS to be poised above the heating uf1it.

prinoipal object of the pfeSent invention is to pTovide in aj single unitafy struotufe having a 1ninimum number of pas a nlultiple utility heating device Which oan pefforn1 Severa1 diffefent operations silTfultaneously, and one vvhich When not in 1se can be Stofed in a snlall luggage space.

or a n1ore oon1prehensive understanding of this invention, Teference iS now n1ade to the ac coInpanying dTavvin and to the followin detai1 ed specifoation in Which like feference char aotefs deSignate coffesponding paffs throughout, and in which g. 1 is a plan view of an apparatus en1- bodying the salient featufes of the pfesent invention 1= ig. 2 is a side elevational vievv thefeof,

,ig. 3 is a ffont elevational view of the utility heating device featufed in E,igs. 1 and 2 having 8 n1inof ortiOn bfoken avay to inustrate cfoss sectiona1 confour,

1 ig. is a plan view taken sin1ilarly to the view designated fg, 1, bllt With the feflector shelf bfoken avvay to feveal the involute oufvatufe of the heating u11it, and

ig. is an expIoded pefSpective vieW taken ffon1 the Tear showing the Inanner in which the lattef eleInent is inSerted and vvithdfavvable fron1 the nlain fraIne of the heating apparafus.

ffeferfing now Inofe pofticularly to the details in the acconlpanying draWing, attention is difeot ed to the feferenced llu!neral vvf1ich indicteS genefally a reotangulaf sheet Ineta1 inolosure that fofmS the base of the Sfove- Tf1is poftion of the apparatos is econon1ically fabficated by foTn1ing tvvo syInnletrioal Side pane1S l2 and |3. Bach side pane1 haS a back bar projection lf, While an incloSLlfe Sheet of Inetal l3 perin1efrically profiles the side elementS l2 and l3. The assen1bly may be secured togethe1' in any of several Inanners Such aS by providing inWardl extending nangeS to the side eleInents of panelS 2 and l3 and by Welding of riveting thereto the periInetrical ele- Inent 3.

11 the back vva11 portion l3 of the )e1'iIneffical elen1ent 3, there afe pfovided tvvo openings of' S1itS IT and l3 in hofizonta1 alignnlent and of predetennined poftions So as to feceive the bayonet inSert lugs |3 and 2, vvflioh are exten sions of and offset froIn the baok vva11 22 of the renectof shelf 23.

The shelf 23 has integfally struck and doWn wafdly bent thefefron1 two alignment lugs 23 vvhloh stfaddle the fod type heating unit genera1ly designated 23. The lattof is aSSeInbled in a Inanner vve11-known so that its contained fesistance Wires coufse thfoughout its length and ter 1I1inate through 9d single end 23 of the heating elen1ent 23 and extend thJ^ough a Inounting brackef 2T vvhich is secufed to the inner face 23 of the back bof poftion of the baSe struoture. The brooket 27 haS an integra1 horn 23 vvithin which the terminal 26 is seonfely held.

The f1oof 3! of the base has in itS centof a. forlned seating ring 32, upon which Inay be suppofted any heating utensil suoh as bfoiling pon of gI'id apparatus. In ofdef to pfovide Supple- Inentary Suppoft to the het unit Whne yet insufe against 1osSeS thfough oonduction, a bai1 1'od 33 bent in the nlannef best ifldioated in 1 'ig. 3 fs pfovided. T1e opposfte extfen1itieS of this fod are fiottened aS of 33 and Seoured thefeto by 1T1eanS of thfeadoutting ScfeWs enteI,ing into the fespective side plates 2 and l3. The hofizonfal portion of the bai1 33 iS pfefefably in oontaot Wifh the oonvolutionS of the heating elen1ent 23 and is diSposed if1 Spaced relation to and above the Seat ing fing 32 so as to adInit thefebetvveen vazfiouS types of broiling ilTlplenents aoceSSofy to the in Stant appafatus.

In ofder to afford thfee degfees of heating, the fesistanoe Wifes within the fod unit 23 are mmtiple and tefff1inate in of least four tefnino vvifes, Which are oonnected in weHknoWn n1an ner to aJ SWitoh deSignated 33. Tfle lotter fs oapable of fou1, poSitions, inoluding the o1f posffion

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