US1353305A - Heat-insulated vessel and casing therefor - Google Patents

Description

G. P. ALTENBERG.-

HEAT INSULATED VESSEL A'ND lCASING THEREFOR.

` I APPLlcATloN man 1m31.191s.

UNITED sTATS PATENT ePRICE GEORGE r. ALTENBERG, or CINCINNATI, CHIC, AssICNoR To THE ICY-NCT BOTTLE COMPANY, or CINCINNATI, CHIC, A CoaroRATICN or WEST VIRGINIA.

l Application led January 31, 1919.

To allwwmz'tma/ concern.' A l Be it lrnown that I, GEORGE P. ALTEN- BERG, a citizen of the UnitedStates, residing at Cincinnati, in the county ,of Hamilton and State of Ohio, have invented certain new and useful Improvements in `Heat- Insulated Vessels and Casings Therefor, of which the following is a specification.

`invention is particularly applicable to vacuum-insulated pots or pitchers, or similar vessels, hereinafter for Convenience referred to as pots, adaptedr for serving coifee, chocolate, tea, milk, cream, or other beverages. Y. i l i It is the object of my invention to provide new and improved means for connecting the mouth-end Yof the inner .vessel of a heat-insulated pot with its outer casing inV such manner that the inner vessel may be removed, and that a leakless joint may be providedl between the' inner vessel and the pouring wall ofthe casing. v f

Itv has been diflicult in vessels of, this char-v acter toprovide connecting means between the mouth of the inner vessel Vand the pouring wall ofthe casing which properly relatively locate Ythe parts and preventY the contents of the inner vessel seeping or leaking Vthrough the ioint between the inner yvessel and the pouring4 wall of the casing. I avoid these obiections by means of my invention, and at the same time provide lioint in which' the various parts are readilyassembled and replaced, and are readily7 accessible for cleaning purposes, and-furthermore provide a tight ioint regardless of ineoualities there maybe in the mouth-end of the inner vessel. it. being understoodthatin practice it is difficult. in fact, 'impossible to infalliblv V" `Specicatioifi of Letters Patent.

flange having an axially inwardly project'-` V tion on the line'li-lv of Fig'. 2.

In the present exemplification of my iiivent1on,` the body comprises a casing 11,

*an annular cross-seal 16. y usuallyof frangible material, .such as glass.

HEAT-INSULATED'vEssEI. AND CAsING THERECR. .i

Patented Sept. 21, serial No. 274,305. i'

num-insulated vessels and casings' therefor, lS'al No. 154:,028, both .filed March 10,

The presentV invention is directed more particularly toa resilientcushion-jring positioned between the mouth of the inner vessel and the pouring wall of the casing, the latter having a radially inwardly extending flange provided with a: drain surface, said ing annular inner edgeor` bead proj ecting toward the lend surface ofthe mouth of the inner vessel. YThecushion-ring isprovided with a radially inwardly extending resilient lip.v Means are'lprovided for pinching the latter lip l between the end ysurface of lsaid mouthof the inner vessel and the inwardly or downwardly extending inner edge or bead of the drain wa'll of the casing. Q

The invention will ber further readily'understood from the following descriptionand claims, and 'from the drawings, ,in which latter:

- Figure 1 a side elevation'of a pot embodyingv my invention, partly broken away, and partly shown vin `central vertical sec- Fig.Y 2 is a plan view of the same, partly" broken away and partly in section on the line 2 2 of Fig. l; and, Y y

Fig. 3 1s an enlargedrview ofthe joint between the kmouth ends of the inner vessel and the casing,sl'1own in vertical section on theline l-l of Fig. 2.

and an inner vessel Vl2, theinner vessel being shown ask a heateinsulated vesselk tconiprising an inner wall 13u and an outer wall 141C, havinga vacuum-insulated space` 15 therebetween, the inner and outerwalls being connected'a't thev mouth of lthevesselby AThe vesselfis The cross-seal is,in practice, liableto have variations therein in a plane perpendicular to thev axis of the vessel, owing to the usual methods of manufacture kof vessels of this character. The inner surface of thevv wall of the4 spacemaybe provided with a usual Y member 2l, within which the inner vessel is received. r YThe casing-members'are ded tachably connected by suitable means, which Ving inwardly sloping closed wall, provided with a pouring channel 28,.the said wall terminating at its lower end in an inner laterally and preferably slightly downwardly extending ange'29. Theinner edge of this flange is provided with an axially or downwardly'gextending annular closed Vedge or bead 30.

he casing preferably comprises a 'neck 31', the inner surface of which .preferably tapers upwardly toward the axis of the.

pot, the upperl end of this tapering neck being spaced radially from. the .inner edge ofv the ypouring flange, forming an annular spaceBQ between said edge and saidjrneck i ofthe casing.v

the inner vessel.l

A resilient cushion-ring, instanced asV a rubber ring, is received in this space. under the pouringl flange between the outerface of the neck 31 of the vessel and the inner face of the neck of the casing.

VT he cushion-ring is provided: with a radially inwardly extending resilient lip 37 which is kreceived over the moutlrend of the inner vessel, so as to locate the inner edge of said resilient lip between the cylindrical projections ,of the inner and outer faces of the neck of the inner vessel, being, in the present instance, located on thecrossseal between Vthe inner and outer walls of the inner. vessel.' The upper inner portion of this cushionring is preferably; rounded below its lip, as shown at 38, forY being snugly, vreceived over the annular rounding 0f the upper outer edge, of the mouth of The position .of the resilientl lip, when the parts are assembled, is preferably substantially coincident. with the vinner downwardly axially projecting edge or bead of the pouring flange, being so; arranged that the'- inner edge of the resilient lip is pinched betweensaid vinner edge or bead of the Casin-g and they upper .face of the mouth. of the inner vessel when the-,parts are assembled. ,This assembling is accomplished inA such mme? as to, cause the mouthA of 'the inner vessel.' and, th@- nner @dse ef the .murine wall of the outer vessel to be'drawn. one toward the other, exemplified as accomplished bythe screw-connection between the upper and` lower sectionsof the casing: When as" Sembld, theestreme meer edle@ @ij the pelirthe edge surface of the resilient lip' prevorv seal between the lInovuthfof the inner ing flange preferablyl extends inwardly to slightly greater extent than the inner edge of the resilient lipfor forming a slight'annular groove 39 between said first-named inner edge and the mouth-end of the inner vessel, in order to' remove said inner edge of said resilient lip from direct contact by ring 35 and its resilient lip 37 are preferably integral with one another and compressible. The casing-parts are preferably of metal;

lthe passing liquid. The resilient Avelishiony i In order to Vprovide for ready assembling of. the partsand for variations. in lengths between the inner vesseland the casing and to resiliently hold` `the inner vessel inthe casing, I provide cushion meansv between the lower endl of the inner vessel andthe bottom of the .lowermember o f the. casing, exemplified as comprising a. volute spring 41, positioned in the depending bottom 42 of the lowermmember of the casing, the upper end of the spring being provided `with ra cushionlpad 43, for instance of.. cork,in

which` the: lower end: of the innernvessel is seated. t l c The action of the tapered inner face of the neck of the casing is to position the cushion-ring centrally withk relation to the mouth-end of the casing, and also 4,to cause ,inward lateral pressure on the cushion-ring radially toward the axis yoftheinnervess'el lto ycrowd the upper-'face of the` cushionring inwardly, orprevent crowdingrof the same outwardly, inr order to position the radially inwardlyl extending resilient vlip with relation to the inner edge or bead of the pouring wall of the mouth-of ythe casing, and to prevent an undue retraction radially outward of said resilient lip when pressure is, exerted between'the inner ves.- sel and the inner edge or bead of the pour- Y ing vflange in assembling the arts u The pouring wall and its ange havev aV continuouslyk downwardly 'and' inwardly sloping upper Aface *c liseharging.'l toward the downwardly Aand inwardly sloping face'pf the cross-seal for readily draining any liquid thereon `into the vessel,

sented to the liquid contents of the'inner vessel being negligible, so that thereis `no danger of contaminating the contentsl or juring the resilie'ntly yielding connectim` vessel'and thev pouring Y'wall of thel casing'.

The casing parts are readily Vseparateo'l and the inner vessel and the resilient cushion ring are readily removed for cleaning pur-v poses and 'for replacement lorv 'renewal' of parts. f Y 7 1', The casingfis preferablyprovided with a cover 45exemplified' as' hinged to'thecasing by means ofy aghi-nge 46, as more lfully shown,1descri bed and claimed in my aforel said applications. The casing may be provided with a suitable handle 47.

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

l. In a heat-insulated vessel, the -combination of an inner vessel and a lcasing therefor, said inner vessel comprising a mouth, said casing comprising a downwardly inwardly sloping closed pouring wall provided' with an inwardly extending closed lip, a compressible cushion between said mouth of said inner vessel and said casing provided with a compressible lip received between said first-named lip and said mouth of said inner vessel, and means whereby to pinch said compressible lip between said first-named lip and said mouth of said inner vessel, the inner edge of said first-named lip extending inwardly beyond the inner edge of said compressible lip, and said firstnamed lip spaced from said mouth of said inner vessel to form a slight inner groove between said irstnamed lip and said mouth.

2. In a heat-insulated vessel, the combination of an inner vessel and a casing therefor, said inner vessel comprising a mouth having an upper end which is rounded in cross section, said casing comprising a downwardly and inwardly sloping closed pouring wall provided with an inwardly extending closed lip provided with a bead at its inner closed edge, said bead projecting toward said inner vessel and arranged to coact` with said rounded upper end of said mouth, a resilient compressible cushion-ring between said mouth of said inner vessel and said casing provided with a resilient compressible lip received between said bead and said rounded upper end of said mouth of said inner vessel, and means whereby to pinch said resilient compressible lip between said bead and said rounded upper end of said mouth of said inner vessel in relation to expose the inner edge of said resilient compressible lip toward the inside of said vessel between said mouth and said first-named lip.

3. In a heat-insulated vessel, the combination of an inner vessel comprising a mouth, a casing therefor comprising a downwardly and inwardly sloping `closed pouring wall provided with an inwardly extending closed pouring lip, a cushion received about said mouth of said inner vessel having a radially inwardly extending closed cushion lip received between said first-named lip and said mouth of said inner vessel, said first-named 4. In a heat-insulated vessel, the combination Aof an inner frangiblel vessel comprising a neck terminating 1n a mouth, a

casing therefor comprising a neck the innerl wall of which tapers toward said mouth, a drip wall having a radially inwardly extending lip provided with an axially downwardly extending annular bead, a resilient compressible cushion-ring provided with a resilient compressible radially inwardly extending annular lip received between said axially downwardly extending annular bead and said mouth of saidinner vessel, and means tocause axial movement between said mouth and said axially downwardly extending annular bead whereby to press said resilient compressible lip'between said mouth and said axially downwardly extending annular bead, and to cause radial inward conlining pressure on said resilient compressible cushion-ring toward said mouth.

5. In a heat-insulated vessel, the combination of an inner vessel comprising an inner wall and an outer wall connected by a cross-seal at the mouth of said inner vessel and having a vacuum-insulated space between said wallsq a casing for said vessel provided with a lip releasably received over and around said mouth and having a radially outwardly and upwardly extending wall receding outwardly` away from said mouth and forming a drain wall sloping toward said mouth, said lip provided with a downwardly extending inner bead, a resilient compressible cushion-ring removably received about said mouth and provided with a resilient compressible radially inwardly extending lip received between said downwardly extending inner bead and said cross-seal, and means for pinching said resilient compressible lip between said bead and said cross-seal.

In testimony whereof kI have hereunt signed my name in the presence kof two subscribing witnesses.

GEORGE ,P. ALTENBERG.

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