US1489780A - Ventilator - Google Patents

Description

Patented pr. 8, 1924.

YcHanLnsA. MOORE, or sT. PAUL, MINNESOTA.

VENTILATOR.

y Application filed January 2.2, 1920. serial Nd. 353,267.

To all whom z't may concern:

Be it known that I, CHARLES A. MOORE, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Ventilators, of. 'which the following isa specification.

This invention relates to ventilators for use in refrigerators, the primary objectbeing to provide a refrigerator in a receptacle, vehicle or fship or any other structure with a ventilator which will most effectively cause,

a well defined circulation of pure cold air not overladen with moisture throughout the entire provision chamber of the structure.

' It is a well known fact that even though erator, if the air is charged with too much moisture, theperishable goods inthe structure are damaged and not preserved iny proper condition. It istherefore the' primary object of this invention to maintain the refrigerated air in the structure in dry condition as well as cold. l

, With these and otherobjects in View, my invention comprisesthe features .of construction and combination of parts hereinafter described and claimed.

In .the accompanying drawing forming part of this specification, iFig. 1-is a horizontal section through a provision chamber.

taken on the linel 1-1 of Fig. 2, showing my invention applied to a stationary-structure, although it will be understood that my invention contemplates applying my improvement to structures of any kind, wherein a refrigerator is employed, and Fig. 2 is a longitudinal vertical section taken on the line 2-2 of Fig. 1. f

In the drawing A indicates a portion of a stationary building structure, having the usual walls -10 and 11 within which is constructed a provision chamber B having side and end insulated Walls 12, through one of which is the` entering doorway 13.. Arranged within the provision chamber is an overhead bunker C,- comprising baiiie walls 14 distanced from the walls of the provision i chamber andsecured to the insulated drain means.

floors 15 and 16 hung from the insulated ceiling 17 by bolts 18 or any other suitable This bunker structure `is formed with a central down draft port 19 at the ends of which are guard elements 20 .dis-1 tanced below the ceiling and -permitting air to circulate over the ends of the bunker and refrigerant and down through said port. Arranged within the bunker over the drain floors are the refrigerating coils 21 and 22, but

it will be understood that my invention contemplates employing any form of bunker for Yuse eithjer with refrigerating coils or with ice. lVhen used with the coils or with ice, entrance to the bunker is had through the doorway 13, which is normally closed by a door 23. l

. My improved Ventilating device includes a duct D connected with the ue 24 in the wall 1 0 and leading directly over and through the bunker in close proximity to the refrigerant, thence downwardly to a point- -near the iioor 18l of the provision chamber. a cold temperature is produced in a refrig- A second duct E. extends downward from 4the upper portion of the. provision chamber,

,about the lading therein this air rises to the 'upper portion of the chamber. Beingthen somewhat colder than the outer atmosphere, said air will fall to the outside through the duct E. Thev .steady down drafts thus produced in the ducts D- and E causes a .convective and diffused freshening circulation of air within the chamber. Suitable hand operated dampers 25 and 26 are provided respectively in the ducts D and E in convenientposition to be turned by an .operator` standing on the iloor of the provision chamber. By' adjusting theseV dampers, the amount of draft and the-percentage of moisture in the air in the provision chamber can be regulated from time to time. By

regulating these dampers the dryness of the air in the provision chamber can be maintained vinr prime condition for preserving any lading in` said chamber. The entire apparatus is simple and inexpensive in con. struction, and provides an effective apparatus for accomplishing the results above set forth.' i

The duct D is also provided with a branch 27 normally closed by stopper 28. When not operatinfr under the action ofa refrigerant in the iunker, the Stoppers 28 and 30 can be removed and the dempers 25 and 26 closed, in which event the upper stratum of moist air Ain the room is removed by the drain .29 in the vfloor of the provision chamber is provided below the lower end of duct D, which is ad-apted to convey the drip resulting from condensation by conducting moist air through duct D and to convey drip from the refrigerant.

Having described my invention what I claim asY new and 'desire to protect by Iletters Patent is:

1. In combination with a lading chamber having a refrigerant in the upper portionv thereof,l a down draft duct leading from' the outer atmosphere in close proximityv to said refrigerant to be cooled thereby and h'aving exit to said chamber near its-lower pory tion and a second'down draft duct leading from the upper portion downwardly and out of said lading'V chamberpadapted to conduct air laden with a comparatively high percentage of moisture from said chamber to the' outer atmosphere.

2. A provision chamber having a refrigerant maintained in theupper'portion theref of, a fresh air ingress duct leading from the outer atmosphere into said provision chamber in close association but out of direct contact with said refrigerant to be cooled thereby and having exit to said chamber near its lower portion and a second duct leading from the upper portion of said provision chamber downwardly to the outer atmosphere for conducting air laden with a high percentage of moisture from the provision chamber7 said ducts being provided with regulators for adjusting the volume of air passing therethrough. y

3. Inl combination with a chamber having a refrigerant in its' upper portion adapted to`be maintained or discontinued in use, a duct passing through'a' substantial portion of its length in near proximity to the refrigerant, said duct having an ingress-egress terminal opening in-the outer atmosphere near the upper level 4of theI chamber, a ter- Ininal egress opening within the chamber at the lower portion thereof and a valved ingress opening between said terminal openings and in that portion of said duct'i'n the upper portion of the chamber, a damper in 'said duct at a point between said valved ingress opening and egress opening, a second duct having an ingress terminal opening near the upper portion of the chamber, an ingress-egress terminal opening in the valved ingress and egress openings beingv closed when the dampers are opened and .the refrigerant maintained, whereby fresh cold air is supplied to the lower portion of the chamber through the first duct and the warmer humid air conveyed from the upper portion of the chamber by the second duct, said valved ingress and egress openings being opened when the dampers are closed and the employment of the refrigerant discontinued, whereby fresh air is supplied to the lower portion of the chamber through said second duct and vitiated air conveyed from the upper portion of the room by said first duct.

4. The combination with a refrigerating chamber of a Ventilating, dehumidifying apparatus therefor, comprising means for introducing fresh cold air to the lower portion of the chamber and means for re-l moving the upper stratum of air downwardly from saidchamber, the air removing action of said second means being stimulated by the effect of the incoming cold air.

5. In combination with a lading chamber having a refrigerant adaptedto be maintained or itsl use discontinued in its upper portion, a. down draft duct leading from the outer. atmosphere in close proximity to the refrigerant to be cooled thereby and having exit to said chamber near its lower portion, said duct having a valved inlet entering the upper portion of said chamber and being valved on the lading chamber sidebf said valved inlet therein, and a second down draft duct leading from the upper portion of said chamber downwardly and out of said chamber, said second duct having a valved inlet entering .the lower portion of said chamber and being valved on the lading chamber side of said valved inlet therein, whereby provision is made for two independent circulations of air, one providing a cooled down draft of fresh outside air entering the lower portion of the chamber and the warm vitiated air from the upper portion of the chamber er pelled downwardly to the outer atmosphere when the refrigerant is maintained and the other providing cool outside fresh air entering the lower portion of the chamber and the warmer vitiated air expelled upwardly to the outer atmosphere when the use of the refrigerant is discontinued.

In testimony whereof, I have signed my name to this specification.

CHARLES A. MOORE.

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