US2030454A - Humidifier apparatus - Google Patents

Description

Feb. 11, 1936. V L. KREssER HUMIDIFIER APPARATUS- Filed De. 15, 1934 2 Sheets-Sheet l ATTORNEY Feb. 11, 1936. l.. KRSSER 2,030,454

HUMIDIFIER APPARATUS Filed Deo. l5, 1934 2 Sheets-Sheet 2 INVNTOR E0 /IPfSSE/Q BY gwn, @ad

ATTORNEY Patented Feb. l1, 1936 UNETED STATES PATENT OFFICE HUMIDIFIER APPARATUS Leo Kresser, Springfield, Mass., assgnor to United American Bosch Corporation, Springfield, Mass., a corporation of New York Application December 15, 1934, Serial No. 757,645

Claims. (Cl. 261-91) This invention relates to humidifying apparatus bored to receive a post I3 which carries the weight and more particularly to apparatus for automatof the motor I8 and suspended parts. The post ically malntainingapredetermined moisture conis reduced in diameter at its upper end which tent in the surrounding atmosphere. The humid- Carries a rubber bushing I4. An arm of the tripod 5 ler is intended for use in heated buildings and spider I5 has an opening which nts over the bush- 6 households where the atmospheric moisture conilg i4. A rubber Washer l5 and e' mete-1 Washer tent commonly falls below healthful levels. Many I1 may be subsequently placed 0n the reduced end industrial processes likewise require operation in 0f pOSt I3 and OVellyiug the Spider arm. the eS- a moist atmosphere. The humidifier presented sembly being secured by a Cotter pin through the 10 in this invention is automatically controlled in pOSt. A Capacite-t0? mOtOl i8 iS mounted 0n 10 response to the moisture content oi the air, and Spder i5 With tbe armature Shaft i9 vertically is readily disassembled for inspection and cleanpOSitiOied, 21nd iS provided With 9 Waterproof ing. frame or casing. A collar is secured to the end An object of this invention is to provide a hu- 0f Shaft i9. Prpl'eetiflg dOWnWaIdly from the C01- l5 midifier which is more efiicient in operation and ier and Coaxial with the motor Shaft I9 is e water 15 simple in construction elevating tube 2I and positioned within the lower Another object; is to provide a humidifier havend of the tube is an agitator plate 22. The agiing a centralized contro1 apparatus removame as tator consists of a flat metal plate extending from a unit. one inner surface of the tube 2l to the opposite 20 A further object is to provide a humidifier surface. The collar 20 also carries a horizontally 20 which is more Silent in Operation extending atomizlng disk 23 and a spider member Other objects and advantages will .in part be 24 having ign blades-25' A cover 26 of Special obvious and in part Specifically Stated when the noise reducing :iualitles directs the humid air following specification is read in connection with around the motor I8 to the outlet at the top of 25 the drawings in which Fig. l is a sectional View the machin@ The @over 25 is formed With a' 25 of the apparatus; Fig. 2 is a top sectional View double wall the inner cf Which may be perforated, thereof; and Fig, 3 is a from View of the Control and the intervening space is lled with a sound box. absorbent fibrous material 21. All tendency to- Referring in more detail to Fig 1, the numeral ward drumming or resonance vibration of the I represents a cabinet containing the entire appa- @0l/el iS tbuS prevented and IlOSeS produced by 30 ratus. Positioned within the cabinet I is awater tbe motel" and fttomizer are minimized- The tank 2 which has a castY annular supporting ying outer wall of the cover 26 extends downward to 3 attached to the upper rim thereof. The ring meet the upturned flange 6 0f the annulus 5 and extends inwardly toward the central axis of the the Cover is held in place by hook members 28 tank and carries on its upper Surface three proriveted to the skirt thereof and engaging posts 35 jecting seats 4. Positioned on these seats is e 29 Set along the Outer rim of the supporting ring sheet metal annulus 5 having an upf-uned Outer 3. Extending across the lower part of the cabinet flange 6. The inner circumference of the annuiS a Shelf 30 Seeulei t0 Opposite Side Walls by lus 5 has attached thereto an atomizing grid comrubber nSU-ieted fatemng members 3| Which prising a. number of closely spaced veri-,icm vanes prevent the transmission of vibration between the 40 1. A vane ring 8 is xed to the tops of the vanes parts. Secured by resilient mounts 32 to the I and acts as a trace to prevent relative move- She1f 30 and directly under the Center 0f the ment and vibration. Also attached to the inner tank 2, is a small electric fan .33. A deector 3l circumference of the annulus 5 is a strainer spider is placed around the fan and directs air upwardly 46 9, Supporting a tubular copper mesh strainer I0 against the bottom of the tank 2 whence it flows 45 which extends downwardly almost the full depth outward and upward between the tank and walls of tank 2. Extending radially inward from the of the cabinet I. At the top of the cabinet and wall of the strainer I0 are baffle plates II which surrounding the humid air outlet 35 is a metal prevent any circular motion of the water Within grille 35 which permits the humid eil t0 be en- 50 the strainer. Secured to the outer wall of the veloped in dry air supplied by the fan 33, insur- 50 strainer I0, and above the water level, is a dished ing complete assimilation of the entrained moisflange I2 for catching any drip from the atomizer ture. structure and preventing the noise caused by In the operation of the machine, water iiows drops striking the main body of Water. by centrifugal action up the inner wall of the ele- Each of the seats 4 on the supporting ring 5 is vating tube 2 I, past the collar 20 to the upper sur- 55 face of the atomizing disk 23. Drops of water are thrown of the disk with a speed corresponding to its peripheral velocity and impinge against the tangential atomizing vanes 1, producing a fine mist. Air enters the space between the lower surface of the annulus 5 and the upper surface of the supporting ring 3, the seats 4 maintaining a clearance between these surfaces. The fan blades 25 direct the air against the vanes 1, where it picks up the mist and fiows upwardly as indicated by the arrows, between the cover 26 and motor I8. Upon issuing through the outlet 35, it is enveloped in dry air as before explained, and no individual droplets remain to be deposited upon walls or fu/rniture.

Mounted in the upper part of the cabinet I in the dry air stream is a control box 31 which automatically completes the motor circuits when the atmospheric moisture content falls below a predetermined level. As best illustrated in Fig. 3, the control box contains a humidistat element 38 with a control adjustment 39 which determines the operation point of the assembly. A spring arm 40 maintains the expansible element 38 taut, and upon its expansion the operating pin of switch 4I is depressed. -The power circuit is then through the supply plug 42, the closed main switch 43, the humidistat switch 4I, to the motor outlet receptacles 44 and 45 and the capacitor lead 46. An auxiliary or emergency switch 41 is placed in parallel across the contacts of the humidistat switch 4| to provide a shunt circuit permitting operation of the apparatus at will, and independent of the automatic control. As shown in Fig. 2, the emergency switch 41 is normally protected against unintentional operation by a removable thimble 48 which covers it. As best illustrated in Fig; 1, the outlet 44 supplies the humidifier motor I8, the outlet 45 supplies the fan motor 33, lead 46 connects the capacitor 49 in the iield circuit of motor I8, and cable 42 connects with the alternating current mains. It will be seen that all the critical elements and circuits of the humidifier are concentrated within the control box and in case o'f failure, the box may be removed as a unit and replaced with a. new one. Servicing is quickly and efciently accomplished and with a minimum of annoyance to the owner of the machine.

Many changes and modifications may be made by anyone skilled in the art without departing from the spirit and scope of the invention as defined in the following claims.

What I claim and desire to secure by Letters Patent of the United States is:

l. In a humidifier, a water tank, an atomizer in communication with said tank, a motor driving said atomizer, means for establishing a stream of moist air surrounding said motor, means for establishing a stream of dry air substantially concentric with said moist air stream, and a sound absorbent partition separating said air streams and positioned adjacent said motor.

2. In a humidifier, a water tank, an atomizer in communication with said tank, a motor driving said atomizer, means for establishing a stream of moist air surrounding said motor, means for establishing a stream of dry air substantially concentric with said moist air stream, and a partition separating said air streams and positioned adjacent said motor, said partition including a sound absorbent material.

3. In a humidifier, a water tank, an atomizer in communication with said tank, a motor drivingl said atomizer, means for establishing astream of moist air surrounding said motor, means for establishing a stream of dry air substantially concentric with said moist air stream, and a partition separating said air streams and positioned adjacent said motor, said partition comprising two spaced walls having a sound absorbent material therebetween.

4. In a humidifier, a wat'er tank, an atomizer in communication with said tank, a motor driving said atomizer, means for establishing a stream of moist air surrounding said motor, means for establishing a steam of dry air substantially concentric with said moist air stream, and a partition separating said air streams and positioned adjacent said motor, said partition comprising two spaced walls having a fibrous material therebetween.

5. In a humidifier, a water tank, an atomizer positioned above said tank, a motor positioned above and drivingly connected with said atomizer, means for producing an upward fiow of moist air from said atomizer, a cabinet having walls spaced from said tank and motor, means for producing an upward fiow of dry air adjacent the inner surfaces of said walls, and an upwardly extending sound absorbent partition secured adjacent said motor and separating said dry and moist air flows.

LEO KRESSER.

DISCLAIMER 2,030,454. -Leo Kresser, Springfield, Mass. HUMIDIFIER APPARATUS. Patent dated February 11, 1936. Disclaimer filed June 12, 1937, by the assignee, United American Bosch Corporation.

Hereb enters this disclaimer to claims 1 and 2 of said patent.

[ io'ial Gazette July 13, 1.937]

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