US2685245A - Cabinet air-mixer for installation against walls - Google Patents

Description

3, 1954 J. M. REDMOND, JR 2,685,245

CABINET AIR-MIXER FOR INSTALLATION AGAINST WALLS Filed Nov. 27, 1950 IN V EN TOR.

ATTORNEYS. v

Patented Aug. 3, 1954 CABINET AIR-MIXER FOR INSTALLATION AGAINST WALLS John M. Redmond,

Jr., Wichita, Kans., assignor to The Coleman Company, a corporation of Kansas Inc., Wichita, Kans.,

Application November 27, 1950, Serial No. 197,713

7 Claims. 1

This invention relates to a cabinet air-mixer for installation against a wall. The invention is particularly useful in connection with a cabinet in which heated air is mixed with room air and the mixed air then discharged into the room, the cabinet being installed so as to fit tightly against a room wall.

An effective means for heating a room is by discharging into a cabinet having a spaced inlet and outlet highly heated air so as to induce room air within the cabinet for admixture with the heated air and then discharging the mixture into a room. Such a system is shown in considerable detail in the co-pending application of Jack W. Kice, Serial No. 760,572, filed July 12, 1947, now abandoned. Considerable difiiculty has been experienced in the employment of an air-mixer cabinet so as to make the same fit tightly against a wall and thus to avoid streaking the wall, while at the same time avoiding the overheating of the wall. The ordinary wall surfaces of a room are found to be highly irregular, and when the back plate of the cabinet is placed against the wall, there are wide spaces and channels formed through which foreign material is from time to time ejected, causing a streaking of the wall. Such movement of foreign material is usually induced by the heat radiated from the back plate, and such heat, in addition to causing the unsightly results described, also have an adverse effect upon the wallpaper or plaster wall of the room itself. There has long been a need for a cabinet which might be effectively anchored against the wall to prevent such streaking while at the same time insulating wall.

An object of the present invention is to overcome the above dlfficulties and to provide a cabinet which avoids undue heating of the wall while at the same time providing a tight seal between the cabinet and the wall to avoid the above mentioned discoloration or streaking of the wall. A further object is to provide a cabinet structure having flanged portions spacing the main cabinet from the wall and presenting edges which provide a close contact with the wall surface in spite of irregularities therein, while also providing a flanged portion which may be cut away to receive the baseboard of the wall. A still further object is to provide a structure having means for anchoring it securely against the wall while providing a cabinet chamber spaced forwardly of the wall and provided with spaced inlet and outlet openings. Other specific objects and advantages will appear a the pecification proceeds.

the cabinet from the the top wall II,

The invention is shown in an illustrative embodiment by the accompanying drawing, in which Figure 1 is a perspective view of a cabinet structure embodying my invention; Fig. 2, a side view in elevation; Fig. 3, a view similar to Fig. 2 but showing a side flanged portion cut away to received the baseboard of a room; Fig. 4, a broken view taken from the inside of the cabinet and showing the flanged side portion which is to be cut away to receive the baseboard; and Fig. 5, a perspective view of the wall bracket which may be employed.

In the illustration given, I provide a shell member In which extends downwardly at an inclination and is provided at its top with a rearwardly extending top wall I I. The shell is provided with rearwardly extending side walls I2. Within the chamber thus provided by the shell Ill, I secure an imperforate casing wall I3, which is united to the side walls I2 and which is directed forwardly at I4 to provide a top wall for the inner chamber. The imperforate wall I3, together with the side walls extending forwardly thereof, the top wall I4, and the forward portion of the panel I I], provide thus a chamber I 5 which is effective as an air-mixer chamber. The front panel of casing I0 is provided at its upper side with a vane-equipped outlet I6, and at its bottom with a vane-equipped inlet I]. A pipe I8 of reduced cross section leads from a furnace or other source of hot air and terminates at a point above the inlet I1 and within the chamber I5. Thus, when hot air is discharged at high velocity through pipe I8, air is drawn from the room through inlet I1 into the chamber I5 and the mixture of heated air and room air is then passed out of the outlet opening I6 at the upper end of the shell.

By the structure above provided, the air-mixing cabinet actually comprises the structure forwardly of the wall I3 and the portions of the side wall I2 extending rearwardly of wall I5 actually from side extensions I9 beyond the actual air-mixer cabinet. Similarly, the rear portion of which extends rearwardly of provides in effect an extension 20 of the Such extended portions of the top wall walls of the cabinet serve to space the real cabinet structure forwardly of the wall and thus to provide an insulation space between it and the room wall.

In the illustration given, the room wall is designated by the numeral 2|, and it is shown provided with a baseboard 22. It is a known fact that the baseboards of rooms vary greatly in wall it, top wall.

depth, height, and in specific conformation. For that reason, it is impossible to provide a cabinet with a shape which will exactly fit the conformation of any and all baseboards. In the structure shown, I find that the side wall extension portion I9, which is preferably formed of sheet metal, may be'cut readily by the person making the installation 50 as to make the cut-out portion indicated by the line 23 in Fig. 3, and by dotted lines in Fig. 4, fit the particular baseboard "22 to which it i to be applied. Thus the .extended side walls l9 serve two important functions. They provide flange portions which may readiiy be cut away to receive the conformation .of the baseboard, while also presenting-narrow edges which form a tight seal with the room wall in spite of irregularities therein. Further, such flanges or side wall extensions space the actual back wall of the cabinet (wall 13) from :the room wall and provide an insulating space therebetween.

It will be observed that the cutting away of the side wall portion. near the bottom along line .2-3.does-not in any way injure the rear wall 13- of the-cabinet, and the cabinet thus remains intact .asatmeans for providing an air-mixing chamber.

I have found that the'cabinet canbesupported firmly and securely against the wall by employing bracket means which will now be described.

To the side wall I secure a bracket member .25 having apertures 26 through which screws or .other means may be passed into the wall for securing the bracket in position. The bracket 25 .is .provided at its ends with spring flange 21 having slots -28 therein. Withthe bracket located asshown, the spring flanges 2i willbear against .theside walls is of the cabinet and a screw :29 on each side of the cabinet may be passed through the wall portion 19 't oengage' the slot .28

in each flange '21. By this .means, the upper end of the' cabinet is securely anchored in position.

To anchor the bottom portion of the cabinet, I prefer to .secure to the floor below the cabinet abracket strip'dll. The strip 38 is provided with openings 3| for receiving screws orother fastening means and is preferably provided with upturnedend flanges 32 which are adapted .to bear against the inner surface of the cabinet wall 12. The flange 32 maybe provided with an aperture 33 for receiving a screw which passes through a similar opening 34 in the lower end of the cabinet I2.

The bracketail is also utilized forreceiving and supporting-the-hot air pipe 18. Thus the bracket .30 and pipe 118 provide an assembly whichmay be installed simultaneously for anchoring the lower portion of the cabinet and simultaneously supporting the air pipe l8 centrally within the cabinet.

While in the foregoing specification, I have set forth a specific structure in considerable detail for the purpose of illustrating one embodiment of the invention, it will be understood that such details may be varied widely by those skilled in the art without departing from the spirit of my invention.

I claim:

1. An air-mixer cabinet adapted to be installed against a room wall provided with a baseboard, comprising a shell forming an air-mixing chamber provided with an air inlet spaced from an air outlet, said shell having its top wall and side walls extended rearwardly to abut throughout substantially the entire lengths thereof against the :room wall at a distance from the rear wallof 4 said chamber, said side walls being of thin meta and being cut away to fit the conformation of said baseboard and abut thereagainst when the rear edges of said side walls and top wall are pressed against said room wall, whereby a substantially dead air space is provided between said room Welland said air-mixing chamber with the result that the air between said cabinet and wall does not move upwardly from said cabinet when heated.

said shell being extended rearwardly to abut throughout substantially the entire lengths thereof the room wall at a distance rearwardly of said shell rear wall to provide a substantially dead air space between said room .wall and shell rear wall, and a bracket adapted to be secured to the room wall and provided with end'spring flanges adapted to engage the inner end walls of said cabinet, said flanges being provided with openings :for receiving screws passing through the side walls of said cabinet.

3. .Anair-mixer cabinet adapted to be installed against a room wall, comprising a shell having front, rear, top and side walls providing an airmixing chamber, the front wall thereof being provided with an air inlet and an .air outlet spaced from the inlet, the side walls and top walls of said shell being extended rearwardly to tightly abut the room wall at a distance rearwardiy of said shell rear wall to provide a substantially dead air space between said room wall and shell rear wall, and a bracket adapted to be secured to the floor and provided with endflanges adapted to slideably engage the inner side walls ofzsaid cabinet, said bracket being apertured-to receive a hot air pipe extending upwardly into said cabinet.

4. An air-mixer cabinet adapted to be installed against a room wall, comprising a shell forming an air-mixing chamber provided with an air-inlet spaced from an air outlet, said shell having its top and side walls extended'rearwardly to abut the room wall at a spaced distance from the rear of said chamber to provide a closed insulating space between the room wall and rear wall of said chamber, a bracket adapted to be securedto the room wall and provided with end spring flanges engageable with the inner side wall surfaces-of said cabinet, a floor bracket having spring end flanges engageable with the inner surfaces of the side walls of said cabinet, and a hot air pipeextending through and carried by said floor bracket.

5. An air mixer cabinet adapted to be installed against a room wall, comprising a shell forming an air mixing chamber provided with an air inlet and an air outlet spaced therefrom, said shell having its top wall and side walls extended rearwardly to abut throughout substantially the entire lengths thereof the room wall at a spaced distance rearwardly of said chamber, and a bracket adapted to be secured to the room wall and provided with end spring flanges adapted to engage the rearwardly-extended side walls of said cabinet, said flanges being provided with openingsfor receiving screws passing through-the rearwardly-extending side walls of said cabinet.

6. An air mixer cabinet adapted to'be installed against a room wall provided with a baseboard,

comprising a shell forming an air mixing chamber provided with an air inlet and spaced therefrom an air outlet, said shell having its top wall and side walls extended rearwardly to abut throughout substantially the entire lengths thereof the room wall at a distance from the rear Wall of said chamber, said side walls being arranged to conform to the configuration of said baseboard and abut thereagainst when the rear edges of said side walls and top wall are pressed against said room wall, whereby a substantially dead air space is provided between said room wall and said air mixing chamber with the result that the air between said chamber and room wall does not move upwardly from said cabinet when heated.

7. The structure of claim 6 in which a hot air pipe extends upwardly and into said chamber and terminates adjacent said inlet, said hot air pipe extending through a bracket secured to the side walls of said cabinet and being adapted to be secured to the floor of a room space.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,063,645 Boles June 3, 1913 1,303,210 Klein May 6, 1919 1,449,072 Stearns Mar. 20, 1923 1,977,248 Space Oct. 16, 1934 2,144,466 Stikeleather Jan. 17, 1939 2,159,495 Anderson May 23, 1939 2,466,353 Babcock Apr. 5, 1949 2,511,490 Bauer June 13, 1950

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