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Publication numberUS1869344 A
Publication typeGrant
Publication dateJul 26, 1932
Filing dateDec 23, 1929
Priority dateDec 23, 1929
Publication numberUS 1869344 A, US 1869344A, US-A-1869344, US1869344 A, US1869344A
InventorsSchonbein William F
Original AssigneeSchonbein William F
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Combination air cleaner and humidifier
US 1869344 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

y 1932- w. F. SCHONBEIN 1,369,344



Application filed December 23, 1929. Serial No. 416,167.

My invention has to do With devices for cleansing and adding moisture to warm air emanating from warm air furnaces. The invention is so designed that, air previous to being warmed is brought into, contact with running water in such a manner thatparticles of dust, dirt and other foreign matter are collected and carried away by that fluid. After the air has been cleansed, it passes to the heat chamber provided therefor in the furnace. During the interval of passage through the heat chamber, the moisture content of the air is increased by absorption of vapor originating in such chamber.

The invention is of exceedingly simple construction and may be very readily incorporated in a warm air furnace. The device for precleaning the air consists of a number of basins or pans arranged in stepped formation in the horizontal air intake pipe or shoe of the furnace. As is usually the practice,

a vertical intake pipe conducts cold air to r the shoe, which in turn provides passageway to the heat chamber. The pans are arranged in the shoe in horizontal planes one above the other, in the region of the junction of the vertical air pipe with, such shoe. Each pan extends from side to side of the shoe, and each is set back a space toward the furnace with regard to thepan situated immediately below. Water is'conducted to the pans, and from one to the other, commencing with the topmost and ending withthe lowermost. The air passing through the vertical air intake, strikes the pans with considerable volumn' and in a series of rolling movements passes over the water in the pans, and as it does so the foreign matter in suspension is deposited in the water.

After the air has been cleansed it is'conducted to the heat chamber, Where it is warmed and additional moisture added thereto. The added moisture is absorbed from a supply provided by a humidor pan which is mounted in the heat chamber. This pan is so constructed that the water contained thereby is readily converted into 'vapor which is absorbed by the heated air. Of course, as the water evaporates'itisrebygthe section line 3.3 of Fig. 2;

plenished by means of'a float valve arrangement connected witha supply source. p

From the foregoing it Will be seenthat l1 invention attains several objects, among which One object is to provide a device for precleaning warm air emanating from a Warm air furnace. 7

Another object is to provide a devicefor supplying moisture to the precleaned ail? emanating from a warm air furnace. v A further object is to provide adevice as outlined, that is easy, simple and inexpensive to construct, and one that may be read ily attached to a warm air furnace. Other objects will be apparent upon-read ing the specification aided by the drawings, wherein V r v Figure 1 isa side elevation of a-warm air furnace illustrating the installation of my invention therein a Fig. 2 is a vertical cross section indicated by the section line 2'-2 of Fig. ,1;

Fig. 3 is a vertical cross section indicated Fig; l is a perspective of the invention;

Fig. 5 is a perspective of a cover used for enclosing the outer ends of the water pans;

Fig. 6 is a fragmentary detail showing thev apertures provided for supporting the water pans; 5

Fig. 7 is a fragmentarydetail partially in .section, showing how the spacing bars are connected to the side plates; V

Fig. 8. is a side elevation of a furnace,

partly in section, and illustrates the manner in which the humidifier pan issupported in the heat chamber; I

Fig. 9 is a side elevation in section of the humidor pan; and

signed. to support the humidorpan.

Fig. 10. is a perspective of the platev de- Similar'characters refer. to similar parts throughout the several views.

In the drawings, this invention" i's 'sho'wn in connection with a' warm air furnace 1. Furnace 1 is provided with a horizontal air inlet pipe or shoe 2 with which communi-- cates the vertical inlet 3.. Shoe 2 communie cates ,withgan air heating jchamber in thegf furnace 1. 'The foregoing construction may vary somewhat according to the type of location of which is concealedby the enver or side plate 6 of framet. Frameb is com.- posed of two spaced side members or plates 6 and 7 respectively, which are 'heldapart by the spacing bars 8. Bars 8 have threads run on=-each end upon which -tl'1r'ead'e'd-t wo nuts, 8 and S" respectively, which are positioned one on one side of a plate andne on the ether. Plate 6 1s here'shown as being rectangular in outline to provide a cover for the aperture in side 2. Plate 7, of course, sheuld be smaller -than 6 in order that it may pass through such aperture, and it' r nay be given the outline'i suggested in the drawings, wherein the portion 9 of the upper edge thereof is'inc'lined. To 'allowp-late 7 to'r'est at proper height with regard to plate I 6, it- -'is provrded with adjnstablelegs in the form of slotted plates which are positionable along thebolt 12. v

V The-plates 6 and 7 are provided with' a like number of rectangular a ertures 13. These are arranged in horizontal planes, one above the other, and are setback one over the othea These apertures are the supporting means for the pans .14, 15,16,- Hand 18. The number of these; pans; of course, is determined by the size of shoe 2. In this instance thereare five, and they appear, through arrangement of aperturesl3, as a series of steps. The; pans extend through the-'a'qg ie'rtures 13 in" the plates 6 and 7, and the-outer 'end 'of each proj'ects'substantiall'y frbm'the plate 6. The projecting ends of 5 flow of water back and forth through the- V. 0

the pa ns are e'achiprovided with" a removable cover 19 to prevent dirt from entering the pans from the" outside. I a

It is proposed to provide, a continuous pans, commencing with the uppermost and ending with the lowermost, the water/run.- fr'om each pan tothe next immediately below. Each pan has an outlet" 20 whereby water may'flow' fromit to the pan below; In order that the water will "flow from one-end "to the oth'er'of each panj'as it flows from the topmostto thelowermo'st, each has a partition or deflector plate 21 which provides a channel 22 commencing atthe outer-end'of the "pan, extending to the-inner endand refturni'ngfto the outer end where it'terminat'es in anjoutlet 20. "Outlet 20of the lowermost pan is of course, connected with a conduit 1 designed to carry the vateraway. The pairs are so supported withinthefr'ame 5thatthey may be removed at any time it so desired.

'Water is supplied to the pans by means of seen th-at'the pans are arranged across the passageway 4 just below the passageway ,4. Cold air traveling to the furnace descends the passageway 4" with considerable force, and when it comes to the area occupied by the pans, a substantial portion thereof comes into contact with the water and the particles of foreign matter are deposited therein. After the airh-as been-cleansed it is conducted to the heat chamber 4 where the temperature thereof is "raised for heating pu'rposes.

Prior to emerging from: the heatchamber', moisture is added thereto, this is provided in the form of-vapor originating from humidor pan located within the heat chamber. The hun i idor 25'is in the upper portion ef-the heat chamber. Pan 25:1is an elongated of the P2111 25. For thetpurposeo-f support- *ing the pan,-pla-te 36 ispro vided with lugs 32, one-e'aeh side" of the opening 31. .The pan 25 -is secured 'to lugs 32 by means of pins 33 w l'iich serve also as hinges for the cover 34. The innerien d of the panis supported 'by-rod 35 whieh pas'ses through the tongue 36*. Gomp'lete" passagewf the rod is prevented by containerprovided with parallel ends and its heads? which bearsagainst the tongue. 7

The outer end o'frod 354s "threaded and extends through wall 29 of the furnace. A 1 15 thumb nut 38' is threaded thereto and bears against the outer surface of -the furnace wall.

Threading. and unthreadi-n-g nut 38 will raise and lower the inner end of pan '25.

When the "inner end of the :pan 25 is lowered the 'water'thereinwill be enabled to cover the entire inner surface of the inclined bottom portion 26. A fluid supply pipe 39 is connected between valve 27 and T 40,. to which construction being Sllli that it may very I30 readily be installed in furnaces that are in actual use without the necessity of making any material alterations in such furnaces, and

when so installed it requires practically no apertures, elongated pans projecting through corresponding apertures, said apertures being so designed that said pans are arranged in stepped formation in horizontal planes one above the other, and said pans being constructed to allow a continuous flow of water openings arranged in stepped relation, a series of liquid receiving pans extending through the respective openings and supported in said housing, one end of each pan extending outside said side wall, and communlcating means between the extended ends ofthe successive pans.

WILLIAM F. soHoNB IN- from one to the other commencing with the uppermost.

2. A humidifier for warm air furnaces, comprising an elongated pan having the major portion thereof projecting into the heat chamber of such furnace, aplate secured to the wall of said furnace, lugs projecting from said plate providing a pivotal support for said pan, the bottom of said pan having a substantial portion arranged at an inclination to provide a shallow inner end, a tongue at the inner end of said pan, a rod projecting from said tongue and extending through the wall of said furnace, including a nut threaded thereto exterior of the furnace, a float valve in said pan, and a fluid supply pipe connected to said valve.

3. In combination with an air duct having a series of openings in a side wall thereof, said openings being staggered with respect to each other, an open top pan fitting into each opening, a support for each pan within the duct on which the pans are slidable, each said pan extending outside said side wall and each having a closure portion at its top for closing the opening, there being an opening in each closure portion for the introduction of water to the pans outside the wall of the duct, a

; pipe depending from each pan outside the 4. In combination with an air duct, includ- 1 ing a vertical cold air inlet pipe, and a horizontal cold air shoe communicating at its outer end with this lower end of the vertical pipe and at its inner end with a warm air furnace; of an air cleaning device arranged in the duct, at the juncture of the vertical and horizontal pipes, said air cleaning device including a series of liquid receiving pans arranged in stepped relation, said pans extending beyond one side wall of the duct and communicating means between the extended ends of the successive pans.

5. A cold air duct for furnaces including substantially a housing having one side wall thereof provided with a series of spaced

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2573158 *Mar 7, 1949Oct 30, 1951Walter E MuthAir humidifier
US3668840 *Mar 6, 1970Jun 13, 1972Pierick Richard LAir cleaner
US5259996 *Dec 14, 1992Nov 9, 1993Morgan Thomas HLow profile cascade aerator
US6135432 *Aug 25, 1997Oct 24, 2000Resmed LimitedHumidifier
US20070045881 *Sep 1, 2005Mar 1, 2007Aguirre Everardo L MAir humidifier
U.S. Classification261/114.1, 261/119.1, 236/44.00R
International ClassificationF24F3/12
Cooperative ClassificationF24F3/12
European ClassificationF24F3/12