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Publication numberUS827222 A
Publication typeGrant
Publication dateJul 31, 1906
Filing dateJan 13, 1905
Priority dateJan 13, 1905
Publication numberUS 827222 A, US 827222A, US-A-827222, US827222 A, US827222A
InventorsWilhelm Espenhayn, Friedrich Oswald Hunger
Original AssigneeWilhelm Espenhayn, Friedrich Oswald Hunger
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Chemical heating device.
US 827222 A
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Description  (OCR text may contain errors)

UNITED STATES "PATENTv OFFICE, 1

lWILHELMEsPE-NHAXN ANDFRIEDRICH osWALD HUNGERQOFCHEMMTZ, l f' M-GERMANY-- Nsamaea;

To aLl-1 whom, ntycortcrn:

Beit known that we, WILHELM EsPEN- HAYN and FRIEDRICH OswALD HUNGER, sub-y jectslof the 4German Emperor, and residents 5 of Chemnitz, Germany, have invented an Imwarmingfood, liquids, or other substances in a semiliquid state.' c

We have illustrated a4 simple form -`of our invention in the accompanying drawings, in

Figure 1 is a vertical section of the rece tacles we employ for the chemicals and t e fluid to be mixed therewith, showing our IfFigs. 2 and 3 are plan viewsof said recepta- 4cles, sealed and unsealed. f

Inl carrying our invention into practice, wel

"These chemicals-w en brought into contactv *l with the fluid generate an intense heat.

In'the open end of the c linder a we fix a l funnel-sha ed.receptacle. to contain the water or t e like.

where vthis hole f is formed bein bent inward,

' forming the recess g. Over t ese openings d, e, and f we secure with soft'so'ldei` a stri of 'tin or the like h, so as to` hermetically c ose the receptacles.4 Wehave shown the doubled part 'i of said strip projecting upward; -but in practice it is bent around one of the usual tin-opener ke s, such as used with sardine-boxes and the e'.

Specicaton of Letters Patent. Anuman mea imm 1s, 190s. semi No. 240.932'. c

Vl method ofh'ermetically sealing'A same; and

Said receptacle'has. a preferbly dishedcover c soldered to it, andratene'a July 31, i906.

Before the funnel-shaped` rece tacle b and cover'c are placed in position on t ecylindera the latter is filled to about half its capacity with the lime or otherchemical emp oyed. Then, one end of the stri h having been soldered over the hole'or ho es d'with its free end `projecting through the opening e in the c over the conical receptacle bis secured in osition,

as already described, and filled with t e water vice, the key re erred to, which engages the strip h at i, is turned so as to wind said strip u on itself, wherebtlfirst the air-hole f, thent e opening e, and ally the hole d aregrad'- yor other fluid employed, whereuponthe stripl ually unsealed. The water or other fluid in 3 thereceptacle b flows through said hole d into the cylinder a, and in a very short time considerable heat is generatedby its 'combina'- tion with the. chemicals contained therein,

which heat may be communicated to the sub- -nor the 'fluid employed in our device can come intocontact with the food or the like to l be heated. h.

Having now particularly described and ascertained the nature of our saidinvention and in what manner thel same is to be performed, we dec-lare that what we claim'ls- 1.A In a device of the character described, the combination .with two rece taclesy adapted'to contain substances whic when mixed. together produce heat, one offsaid receptacles bemg carried byv and forming a closure for the other receptacle, the first receptacle hav- 'in a filling-opening and an opening to provi e commumcation between the two,.recep'r ytacles and a band soldered to the rece tacle having the openings and forming a tig t closure for said openings and adapted to be operated from a point exteriorly of the recepta cles to cause 1t to uncover the said opemngs for the pur ose set forth.

2.' In a evice of the character described, the combination with two, rece tacles adapt-V edto contain substances which together produce heat, one of said receptacles being carried b and forming a closure for the other receptacle, the first-named receptacle when mixed;

IOO

having a vent-opening adapted to place the interior of the second receptacle in communication With the outer air, and said rst receptacle also having a fillin -opening and an opening adapted to place the interior of both receptacles 1n communication, and a single strip soldered to the receptacle having the three openings and forming a tight closure. vfor all of said openings and adapted to be operated from a point exteriorly of said receptacles to uncover the openings'for the purpose specified.

3. In a device of the character described, the combination with two receptacles a b, adapted to contain substances which when mixed'togetherproduce heat, the receptacle b being carried y and forming a closure for riorly of the receptacles to cause the strip to uncover the various openings.

In testimony whereof we have hereunto set our hands in presence of two witnesses.

l WILHELM ESPENHAYN.

FRIEDRICH. @swim II-UNGER.

Witnesses:

J. F. MONAGHAN, FREDERICK J. DIETZMAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2541736 *Dec 9, 1948Feb 13, 1951Alexander Samuel AChemical heating device
US2850006 *Dec 2, 1955Sep 2, 1958Karpalo Olaus GEmergency can heater
US3378333 *Aug 10, 1966Apr 16, 1968Alan D. BriteWater activated vaporizer
US4559921 *Jan 10, 1985Dec 24, 1985Simon BenmussaContainer with two chemicals in sealed pouch-tearing filament triggers exothermic reaction
US4784113 *Dec 2, 1987Nov 15, 1988Kita Sangyo Co., Ltd.Handy heating container
US7993692Sep 10, 2008Aug 9, 2011Cryovac, Inc.Package assembly for on-demand marination and method for providing the same
US8001959Nov 14, 2006Aug 23, 2011Heat Wave Technologies, LlcSelf-heating container
US8360048Mar 9, 2009Jan 29, 2013Heat Wave Technologies, LlcSelf-heating systems and methods for rapidly heating a comestible substance
US8556108Mar 9, 2009Oct 15, 2013Heat Wave Technologies, LlcSelf-heating systems and methods for rapidly heating a comestible substance
US8578926Mar 8, 2010Nov 12, 2013Heat Wave Technologies, LlcSelf-heating systems and methods for rapidly heating a comestible substance
US8783244Jan 25, 2013Jul 22, 2014Heat Wave Technologies, LlcSelf-heating systems and methods for rapidly heating a comestible substance
Classifications
Cooperative ClassificationA47J36/28, A61F2/0095