US2243570A - Cooling device - Google Patents

Description

May 27, i941. w. 1 MoRRlsoN COOLING' DEVICE' Filed Aug. l2, 1933 4 Sheets-Sheet 1 Jor May 1.941.

W. L. MORRISON COOLING DEVICE Fiied Aug. 12, 19:53

4 sheets-sheet 2 9 fmvez 2502A WZZZQHZ. JZ-arrwwz May 27, 1941. w. L MR'msQN' COOLING DEVIC 4 Shee's-Sheet 3 Filed Aug. 12, 1933 rn/:D

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May 27,

1941. w. l. MoRisoN cooLING DEVICE Filed Aug. 12, 1935 Patented May 27, i941 ,ifi

2,243,570 COOLING DEVICE Willard L. Morrison, Lake Forest, lill. Application august 12, 1933, serial No. 684,817

' (ci. i2-140) 11 Claims.

This invention relates to cooling devices and has for its object to provide a new and improved device of this description. The invention has as a further object to provide a cooling device to be used in a room or compartment and which may receive one or more persons. The invention has as a further object to provide a cooling device which may be placed in a room or compartment and which may receive one or more persons who will be in a cool atmosphere but which is not used to cool the room or compartment. The invention has as a further object to provide a piece of furniture, such as a bed or chair, with means for cooling one or more persons using such bed or chair. The invention has a further object to provide a cooling device which will be cheap in construction and effective in operation `and which can be applied to any piece of furniture. The invention has as a further object to provide a cooling device particularly adapted and effective for -hay fever patients. 'I'he invention has other objects which are more particularly pointed 'out in the accompanying description.

Referring now to the drawings,

Fig. 1 is a side view showing a bed embodying one form of the coolingl device;`

Fig. 2 is an end view of the bed shown in Fig. 1;

Fig. 3 is an enlarged sectional view taken on line 3--3 of Fig. 2;

Fig. 4 is an enlarged sectional view taken on line 4--4 of Fig. 2;

Fig. 5 is an enlarged vsectional view taken on line 5-5 of Fig. 2;

Fig. 6 is an enlarged view of the center-post Fig. 8 is an enlarged sectional view taken on line 8 8 of Fig. 1;

Fig. 9 is an enlarged sectional view taken on line 9 9 of Fig. 1;

Fig. -10 is an enlarged view with parts broken away showing the coupling for the pipe leading to the expansion coil;

Fig. 1'1 is an enlarged sectional line Il-II of Figs. 2 and 3;

Fig, 12 is apview showing a modified construction;

i Fig. 13 is an enlarged view taken on line l3-.I3 of Fig. 12;

Fig. 14 is a sectional view through the pipe in which the air is cooled showing a modied conview taken on and other materials from the air.

Like numerals vrefer to like parts throughout the several figures.

The extreme summer atmospheric conditions to which people in the north temperate zone are subjected makes them not only uncomfortable but reduces their vitality, their energy and effectiveness, and these effects are multiplied in the southern and tropical countries. The cost of cooling buildings and rooms and compartments at present is comparatively high and the result is that few `buildings or compartments are being cooled. Furthermore, with the high wet and dry bulb temperatures very little sleep is possible with most people and sound or proper sleep is not, as a rule, secured.

The present invention has for one ofrits objects to provide a simple and effective means for permitting one or more persons to be in a cooled and dehumidified atmosphere without the expense of conditioning the entire building, compartment or room. For purposes of illustration I have shown the invention as used in connection with pieces of lfurniture, `such as beds. In Figs. 1 to 11, for example, vI have shown in detail one form of device particularly adapted for the purpose intended. In this construction'a bed of any of the usual types may be used. 'Ihis bed may have the ordinary springs and any suitable mattress I. A receptacle 2 for the cooled air is provided and its lower edge extends all the way around the mattress I, the mattress forming the bottom of the receptacle and forming the sealing device for sealing the bottom opening to prevent the warm air from entering. The receptacle or covering device 2 may be made of anysuitable material.v I prefer to make it of light materiaLwsuch as aluminium, although it may be made of any metallic or non-metallic material adapted for the purpose. When the receptacle is made of aluminum it is preferably made with an outer section 3 and-an'inner section 4 with heat insulating material 5 between them, as shown in Figs. 4, 5 and 8.

Doors are provided at the side of the cover or receptacle 2 so that the party or parties may get into and out of the bed and so that the bed may be made up. In the construction shown I have provided two doors 6 and 1. These doors have frames extending about them. Within theseframes are a plurality of transparent sheets 8 and 9 which may be of any suitable transparent "material, such as glass, Celluloid, Cellophane or the like.

In'order to facilitate the handling of the cover or receptacle, I prefer to build it into sections,

there being a bottom section I and a top section II. These sections are connected together by the fastening devices I2 and I3. The dividing line at the end carrying the door 5 is up high enough so that the hinges I4 of this door may be placed on the same section, as for example the section I0. The door 'I has its hinges I5 connected with the section II so that when the device is separated one door will be with one section and the other door with the other section. Intermediate the doors 6 and I is a center post I 6. lThis center post is removably connected with the sections III and II by the fastening devices I'I and I8 so that when it is desired to separate the device into its two sections, this LAcan be done by removing the fastening devices I2 and I3 and I'I and I8,r The doors 6 andA 'I -preferably have a plurality of transparent sheets, the door 6 having the sheets 8 and 8a and the door 'I having the sheets 9 and 9a, See Fig. 9. These sheets have an air space between them so as to act as heat insulating mediums.

The door 6 is provided with a handle I9 on the outside which is connected with the shaft which is rotatably mounted in the door,- and -there is ya locking member 2I inside the cover I latter locking member having an inclined face so that when the two locking I members are brought into engagement the door is pressed inwardly. There is a packing member 23 entirely around the `door which, by the closing of the door, is pressed tightly against the edges of the door opening to form a seal joint. There is also a handle 2.4 on the inside of the cover or receptacle so that any one on the inside can manipulate it to open and close the door. The door 1 has a handle 25 which also has a lockingl member engaging an inclined locking member which presses the door inwardly, and this door also has the packing member 26 extending entirely be used. I have shown the connection between the pipes 40 and 4I in Fig. 10. The pipe 40 has a valve 45 by means of which it may be closed, and the pipe 4I has a valve 46 by means of which it may be closed. Interposed between these valves are the coupling members 4'I and 48 with the handles 49 and 50. When it is desired to disconnect these pipes the two valves are closed. The handles 49 and 50 are then grasped and the coupling members turned relatively until the pin 5I is moved from the slot 52, whereupon the two pipes are separated. The pipes 43 and 44 have a similar coupling and unooupling arrangement.

The cooling coil 42 in the receptacle is arranged in an inner conduit 53, Surrounding the conduit 5351s an outer conduit 54. Air is drawn through the conduit 53 in any desired manner, as by means of a fan 55 run by a motor 55 connected with the receptacle 2. This motor is located in a small compartment 5l surrounded by heat insulating walls 58 so that the heat ldeveloped by lthe motor will not aiect the interior of the receptacle. This also makes the compartment 51 sound proof so that the occupants are therearound .which is pressed tightly against the f edge of the door opening to make a seal joint.

The frames of the doors may be formed in any desired manner. As herein shown there is a frame member on the'outside and .the inside and these frame members are hollow, as shown at 21 and 28. The cover or receptacle is preferably so arranged that its bottom edge comes down substantially to the bottom edge of the mattress, the mattressprojecting up into the casing so as to have an extended bearing surface all the way around to-insure its acting as a seal for the bottom of the receptacle. At the top of the receptacle I prefer to have, one or more air outlets 29.

Some means is provided for properly cooling the receptacle 2., As herein shown, I have illustrated a cooling or refrigerating unit 30 in a suitable casing 3I which may be separatefrom the bed or other piece of furniture, but in proximity thereto.

This cooling or refrigerating u nit may be of any suitable form. For purposes of illustration I have shown it as consisting of a compressor 32 operated by a motor. 33. A tank 34 is provided for the refrigerant. The compressor is connected to this tank by means of a pipe 35 which leads throughl the condenser 35 andconnects with the pipe 31v connected with the tank 34; A fan 38 operated .by the motor directsair on the condenser. 'I'his air passes out through a screen 39 into the room. A pipe 40 leads from the tank provided with an expansion valve 4Ia which may not disturbed by its operation. Air iromjthe room passes through openings 59 in the receptacle 2 and into the conduit 53, coming into oontact with the cooling coil 42.

Some means is provided for removing the moisture from this air and for removing dust, pollen and the like from it before the air is passed into the receptacle 2. The air fromV the room being cooled below its entering dew point gives up a portion of its moisture to the cold surface of the .the drip pan 64 and can be removed when desired. There is also a drip pan 64a which receives any moisture that may accumulate in the outer conduit 54, the moisture dropping 01T and running into this receptacle, and then running down through the pipe 63 into the pan 54.

In Fig. 14 I have shown a construction where there is placed at the end of the conduit 54 an air cleanser of any suitable form, which consists of the air cleansing material 65 'placed in between two sieve like members 65 and 61. The

. air passed through this cleanser has the moisture,

dust, pollen and other impurities removed therefrom. Air is also taken from the interior ofthe receptacle 2 and mixed with the outside air after it has been passed through the conduit 53. 'I'he air from the receptacle 2 passes through the openings 58, see Fig. 2, into the space 8l, see Fla. l1, b'tween the conduits 53 and 54 and is drawn The pipes 40 and 44 To remove this entrained moisture I have by the fan along this space between the conduits and then passes through the openings into the conduit 53 and mixed with the air therein.

Means is provided for regulating the relative amount of air taken from the receptacle 2 and from the room outside said receptacle. I have shown a simple means of doing this which consists of a ring 1I surrounding the conduit 53. This ring is provided with holes 12 which register with theholes 'I8 in the conduit 53, see Fig. 11. By moving this ring the size of these holes can be controlled as desired. The air from the outside and the air from the receptacle are then i thoroughly mixed and moved by the fan up into the receptacle 2, through the duct 54a.

It will therefore be seen that by means of this construction the cold air passing in contact with the cooling coil is tempered by the air taken from the compartment," the two bodies of air being mixed so as to secure the desired temperature in the compartment. It will further be seen that the desired mixture can easily be secured by properly adjusting the' ring 1I.

The air taken from the receptacle may have some moisture due to the evaporation from the body of the person therein. This air therefore,

mixed with the other air in the proper proportions, will secure a mixture having the proper moisture so that the individuals in the receptacle will not have the effect of a too cold or too dry air. I may use in connection with the air cleanser a substance like silica-gel to extract moisture from the air, and the air thus having its moisture extracted would make the bed fairly comfortable to -sleep in even without cooling. It will further be noted that not only is theair passing'to the receptacle properly conditioned by having the.

proper temperature, proper moisture, and being. properly cleansed of impurities or pollens, but there is a circulation of air through the receptacle, as part of the air passes out through the opening 29.

In Fig. 12.1 have shown a' modified construction. In this construction the receptacle 2a is not only open at Athe bottom, but atA the end. This receptacle fits down over the mattress which, as in the other case, acts as the sealing device for the open bottom. The end 13 of the receptaele 2a has the coil and fan andV associated parts connected therewith and is separate from the receptacle 2a and is fastened in position in any desired manner. It may be fastened to the bed if desired, but I prefer to fasten it to the refrigerating unit 30 by means of the fastening pieces 1I. The receptacle 2a is pivoted-at 15 to some fixed-part, preferably the end 13. The receptacle has on the outside at each side lhandles so that it may be moved about its pivots to the dotted position shown in 12 to permit the occupants to enter. It has on theinside on both sides the handles 11 so that the occupants may lift it to this dotted line position. when they desire to leave the bed. Inl'this case there are windows 18 on both sides and made of a plurality of transparent plates. Connected either with the part 13 or the receptacle 2a, and extending all the way around the edges ofthe part 13, is a Packing member 2b which, when the receptacle is in its operative position. forms a. tight packing sealing connection between the receptacle 2a and the part or end 13.

-Some means is preferably provided for holding the receptacle in its up position for the purpose of making 4the bed. This may be done by providing at one side the links 19 and. The

engage the bed and limit the downward movement of the receptacle. In the construction of Figs. 1 and 2there are two folding legs 8l at each end, the legs being pivoted at 82 to the re- 'ceptacle' so that they may be moved up out of f the way when not in use. A

Within the receptacle, whatever the form thereof, I prefer to lprovide an automatic controlling means for the motor 33 of the refrigerating unit. Any suitable device for this .purpose may be used.' lAs herein shown I have illus- Atrated a thermostatic bulb 83 which is connected to a capillary thermostatic line 84 leading to an adjustable pressure switch 85 inside the receptacle. Any usual switch of this type may be used and thevdevice may be set as desired by means ofthe indicating point 86. Associated with this switch are the conductors 81 and 88 which lead to the motor 33. This device is set so that when4 the desired condition in the apartment is present the device will act to disconnect the motor 33 from the circuit and stop the operation of the refrigerating unit until the condition in the receptacle requires it to be again operated, whereupon it is operated. It will therefore be seen that the proper conditions in the receptacle are therefore automatically obtained.

I have shown the device in connection with a bed, but it is of course evident it may be used in other ways by being placed on` other pieces of` furniture, lsuch as chairs, sofas and the like, and the seats thereof may be used as the closing and sealing member in the place of the mattress.

The device might also be placed directly on the floor and properly sealed at the bottom.

In order to provide additional lighting means I have shown the windows 92 and 93 located at The windows have a 9Ia with air spaces betweenr as shown in detail in Figure 4.

The use and operation of my invention are as follows:

The receptacle c'an be easily and quickly installed on any piece of furniture for which it is adapted, or in l-any position desired. The-.refrigerating unit will then be brought into position' and the'pipes properly connected as hereinbefore set out so that the refrigerant is circulated through the cooling coil I2. Air is then taken from the room, that is, is taken from the outside of the receptacle through the openings 59 and passed through the pipe or casing around the ,l

coil 42 so as to be brought into contact with this coil. This air is conditioned by having the moisture, dust, pollen and other impurities removed therefrom and by being cooled. Air from the receptacle passes into the conduit 69 and is mixed with the air which has been `cooled by the coil 42, and this mixture is delivered into the receptacle, the fan 55 acting on both the air from the outside of the receptacle and the air"'from the inside of the receptacle. This fan may be a constant speed fan 'or it maybe a fan whose speed of the motor.

speed can be regulated, and in that event the amount of air can be regulated by regulating the This air when vdischarged into the receptacle will be in the proper condition v this allows the interior to be illuminated from the outside so as to avoid the heat of a light of any kind onthe inside. 'I'he lighting is therefore secured without interferring with the temp perature.

The receptacle maybe arranged with suitable `means for conversing by people on the outside and the inside. When used for hospital patients a microphone can be installed inside with a loud speaker outside so that any sound or talking of the occupant of the bed can be heard on the outside.

It will be seen that this device may be moved from room to room or from point to point as desired. By` having the refrigerating unit separate from the bed and receptacle the noise and vibration from the refrigerating unit is not transferred to the receptacle and the bed or other piece of furniture. This refrigerating unit can be easily and quickly connected to or disconnected from the apparatus in the-receptacle.

I claim: n

1. A cooling and Ventilating device for persons to be applied to 'a bed having a mattress thereon. comprising a receptacle, the receptacle being open at the bottom and positioned over the bed, the lower edge of the receptacle being rigid and extending downwardly past. the upper face of the mattress so that the mattress projects into the open bottom of the receptacle the lower end of the receptacle tightly engaging the edges of the mattress all the way around, such engagement forming a resilient sealing device extending entirely therearound for sealing said open bottom to prevent the escapeof the cool air, said receptacle having its upper Vpart spaced away from the mattress substantially throughout the length of the mattress so as to be spaced away from the body of the occupant on the mattress throughout the entire length of the occupants body, and means for cooling said receptacle.

2. A cooling andfventilating device for per- A bonsntonbe applied to a bed having a mattress i ,thereonjcomprisin'ga receptacle, the receptacle `being open at the* bottom and positioned over the bed, said receptacle having two stiff ends, 4one of said ends being located between the head of the bed and thermattress, .the other of said ends being located between the foot ofthe bed and the mattress, the lower inside faceof each of said ends engaging theassociated vertical end face of the mattress,Y the lower portions ofthe sides of said receptacle engaging the associated Vertical side faces of said mattress so that the mattress projectsupwardlyinto said receptacle the` lower 'end of the receptacle tightly engaging the edges lbodyof the occupant on the mattress throughlout the entire length of said body, and means said receptacle and out of said outlet, said inlet and outlet andthe portion of the receptacle connecting them being spaced above the person lying on the mattress so that the main current of air passes through said receptacle above and entirely along the person lying on the mattress whereby such person will be out of the direc flow of the air.

4. A cooling and Ventilating device for persons comprising a receptacle having an inlet at one end thereof and an outlet at the other end thereof, a mattress forming the bottom of said receptacle upon which the person rests said receptacle completely covering the entire mattress.

refrigerating apparatus comprising a cooling element on the interior of said receptacle and an air moving device for causing air to move through said inlet past said cooling element into said receptacle and out of said outlet, said cooling element and air moving device being located in the receptacle within the boundaries of said mattress, said inlet and outlet and the portion of the receptacle connecting them being spaced n abovethe person lying on the mattress so that the main current of air passes through said receptacle above and entirely along the person vlying on the mattress whereby such person will be outof the direct iiow of the air.

5. A cooling and Ventilating device for persons, comprising a receptacle' having a space into which a person to be cooled is received, said receptacle located in aroom,v an evaporator in said receptacle, means forbrin'ging air from ,and directing such mixture into the space in the receptacle into which the person to be cooled is received.

6. A coolingand Ventilating device for persons, comprising a receptacle having a space into which a person to be cboled is received, said receptacle located in a'room, an evaporator in said receptacle, means for bringing air from `outside the receptacle into contact with said evaporator; in the receptacle so that it will be cooled, means for mixing air from the receptacle with said outside air from outside the V receptacle so as to provide -a cooled air mixture and directing such mixture into the space in the recep.

tacle into which theperson to be cooled is received, and an air outlet in the upper part of said receptacle above the point where the head of the person is located.

7. A cooling and- Ventilating device for ,per-

sons, comprising a receptacle adapted to receive the receptacle and separately supported, and:

connecting means kfor connecting saidcooling essere and condenser tedwitn seid svnzportin ineens but locat outside said iw and an evaporator, supmrted wi said canopy by seid mi means and positioned to cool the sir in seid canopy and circulate it by convection.

9. En an nir conditioning device, the coinninetion of mesma 1r-11 e cenepy for isolatins e none of immediate occupancy, Supportine means for said canopy, a motor, compressor and condenser associated with said supporting menne out ioceted outside said canopy, end sn evaporator, supported within smid canopy by seid supporting ineens sind positioned to cooi the sir in seid canopy and circulate it by convection, seid canopy keine" suon as to permit e change oi air therein by the psssege oi sir through restricted openings.

lo. in en nir conditioning' device, the comici notion of inciuding e, canopy ior isoisting o sone of immediate occucy, `sugrziportiiug means for said canopy, a motor,'compressor and condenser associated with said supporting means but located outside said canopy, and an evaporator, supported within ,said canopy by said supporting means and positioned to cooithe air in said canopy und circulate it by convection.

and means to'catch and conduct outside said canopy the moisture condensing on said evaporator.

1i. In an air conditioning device, the combinotion oi' means including' o canopy for isolating A e, zone ofv .1 occupancy, supporting means for said canopy, a motor, compressor and condenser associated with seid supporting means but located outside said canopy, and an evaporstor,v supported within said canopy by said supporting means and positioned to cool the air in lsaid canopy and circulate it by convection. and means to catch andvconduct outside said canopy the moisture condensing on said evap-4 orator, said means comprising a series of louvre pistes so disposed below said evaporator as to permit o downward motion of airtiierethrough but to carry condensate to one side, a trough for catching said condensate and means for conducting said condensate to a receiving vessel.

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