US2519085A

US2519085A - Window mounted air-conditioning unit

Info

Publication number: US2519085A
Application number: US612397A
Authority: US
Inventors: Arthur H Eberhart
Original assignee: Westinghouse Electric Corp
Current assignee: Westinghouse Electric Corp
Priority date: 1945-08-24
Filing date: 1945-08-24
Publication date: 1950-08-15
Anticipated expiration: 1967-08-15

Description

A. H. EBERHART 2,519,085

lumbau! Hmmm un CONDITIONING-UNIT I 2 Sheets-Sheet 1 Aug. l5, 1950 mea 1mg.v 24. 1945 WITNESSES:

Aug. l5, 1950 A. H. EBERHART mmow uoumn AIR comarrrvoumc UNIT rma Aug. 24, 1945 -2 sheets-sheet 2 INVENTOR ATTORNEY -WITNESSESz n. ag/9 v Patented Aug. 15, 1950 Arthur H. Eberhart, Springfield, Mass., assignor to Westinghouse 'Electric Corporation, East Pittsburgh, Pa., a corporation of Pennsylvania Application August 24, 1945, ASerial No. 612,397

Claims.

My invention relates to a window-mounted air conditioning unit and more particularly to the mounting means and casing structure of such unit.

One object of the invention is to produce an improved air conditioning unit of the type set forth.

A further object is to produce improved mountlng means and casing structure for a windowmountedY air conditioning unit.

A still further object is to produce improved mounting means and casing structure which will be inexpensive, which will have an attractive exterior appearance, and by means of which access can be had to the mechanical or operating parts of the unit without removing the unit from the window.

These and other objects are effected by my invention as will be apparent from the following description and claims taken in connection with the accompanying drawings, forming a part of this application, in which:

Fig. 1 is a composite diagrammatic view partly in elevation, of an air conditioning unit mounting means and casing structure embodying my invention, with the cover shown detached;

Fig. 2 is an enlarged view taken on line II--II of Fig. 1, certain parts being omitted; y

Fig. 3 is a fragmentary section on line III-III of Fig. 2 with the cover shown applied to the casing;`

Fig. 4 is a view similar to Fig; 3 but taken on line IV--IV of Fig. 2;

' Fig. 5 is a view similar to Fig. 3 but taken on line V-V of Fig. 1; and

Fig. 6 is a Ifragmentary, perspective view showing certain details of construction.

In Fig. l there is shown an air conditioning unit which includes a condenser l0, an evaporator l2. a compressor I4, and a motor I6 for driving a condenser fan I8 and an evaporator fan 20. The evaporator, the compressor and the condenser are connected in refrigerant flow relation in the usual manner. The air conditioned by the evaporator is discharged through an opening, not shown, in the upper end 22 of a duct 24 leading from the evaporator. The operating `parts of which extends inwardlyv of the window into the room. The casing 28 is secured to the bottom sill 32 of a window by any suitable means 34 and encloses the compressor, the motor, the condenser and the condenser fan. The cover 30.

- when in position, encloses the evaporator and evaporator fan.

For the purpose of this specification the parts which project into, or extend or yface in the direction of, the room, or to the right as viewed in Fig. 1, will be described as innery and the parts which project into, or extend or face in the direction of, the outside atmosphere, or the left as viewed in Fig. 1, `will be referred to as outen According to the invention, the casing 28 includes a top wall 36, an outer end wall 3l and side walls 38. The inner end of the casing is open, and its bottom side may be partly or wholly closed or may be entirely open. The outer end of the casing is provided with one or more openings, not shown, for admitting and discharging outside air used for cooling the condenser. Provision is also made for admitting outside air to be conditioned and discharged into the room and for exhausting room air to the outside atmosphere. Since it forms no part of the invention, this part of the structure is also not shown nor described.

The casing is provided with means for supporting ller pieces for closing the spaces between the vertical side walls of the casing and the side jambs of the window and for detachably, but tightly, engaging the outer end of the cover.v As shown, the inner end of the casing is provided with an upper angle member 40 which includes a horizontal wall 42 which abuts the top wall of the casing, and a vertical wall 44 which extends upwardly from the top of the casing. As best shown in Figs. 1 and 4, the wall 42 is secured along its outer marginal portion to the top wall of the casing and the inner marginal portion of the wall 42 is left unsecured for a purpose which will hereinafter appear. vThe outer edge of the wall 4'2 may be bent up as at 45 so that the angle member 40 constitutes a modified form of channel against which the lower edge of, a window sash 46 is adapted to abut'as shown in Fig. 1. If desired, a compressible gasket, not shown, may be interposed between the wall 42 of the angle member 4i! and the bottom edge of the window sash to insure an airtight joint therebetween.

The inner end of the casing is also provided with vertically disposed angle members 41 which are carried by the opposite side Walls 38 of the 3 casing, as best shown in Figs. 1, 2 and 3. T he angle members 41 include walls 48 which abut the side walls of the casing and walls 50 which are disposed at an angle to said side walls. As will be seen from Fig. 3, the walls 48, like the wall 42 and for the same purpose, are secured only along their outer marginal portions to the side walls of the casing. The walls 50 carry, or abut against, filler pieces 5I for closing the spaces between the vertical sides of the casing and the side jambs of the window.

The casing 28 is still further provided with means for slidably supporting the tray 26 which supports the assembled operating parts of the air conditioning unit. As illustrated, angle members 52 are provided which include vertical walls 54, secured to the inner faces of the lower marginal portions of the side walls of the casing, and horizontally disposed walls 56 which constitute tracks on which the tray 26 is adapted to slide. The angle members 52 extend lengthwise of the casing to an extent su'icient to provide adequate support for the tray 26 and they also extend into the room beyond the inner end of the casing so as to provide a support for the cover 30. As will be seen from Figs. 3 and 4, inner marginal portions of the walls of the casing are oiset or bent inwardly from the unattached inner marginal portions of the

walls

42 and 48 of the angle members 40 and 41, as at 60, so as to provide a space 62 which will be hereinafter referred to.

The cover 30 is provided with a top wall 66, an inner vertical wall 68 and side walls 16, and is open at its bottom and at its outer or left-hand end as viewed in Fig. 1. The top wall of the cover is provided with a conditioned air discharge opening, not shown, which, when the cover is in position, registers with the opening in the end 22 of the duct 24.

The cover 30 is movably supported on the portions of the angle members 52 which extend into the room from the inner end of the casing 28. In the preferred embodiment, as best illustrated :in Figs. 1 and 5, elongated plates 12 are secured to the inner faces of the lower portions of the opposite side walls of the cover and are provided with pendant offset marginal portions 14 which, with the adjacent portions of the side walls 10 dene spaces 16 for receiving the vertical walls 54 of the angle members 52. The cover 30 is thus slidably supported by the inwardly-extending portions of the angle members 52 with the pendant portions of the plates 14 engaging the inner, and the corresponding portions of the side walls 10 of the cover engaging the outer, sides of the vertical walls 54 of the angle members.

Operation In mounting an air conditioning unit embody ing my invention on the sill of a window, the casing 28 is first suitably secured to the window sill as at 34, and the tray 26, supporting the operating parts of the air conditioning unit, is then slid into the casing. In its movement, into or out of the casing, the tray 26 rides on the horizontal walls 5S and is guided by the vertical walls 54 of the angle members 52. When the tray is in position, but before the cover 30 is applied, the parts will appear as shown in the left-hand portion of Fig. 1. The cover is next presented to the room' end of the casing in such a manner as to cause the vertical walls 54 of the angle members 52 to enter the spaces 16 between the offset portions of the side walls 10 of the cover as shown in Fig. 5. The cover is then moved towards the casing, or to the left as viewed in Fig. 1, until the marginal portions of the top and side walls thereof enter the space 62 between the inner marginal portions of the top and side walls of the casing and the adjacent marginal portions of the

walls

42 and 48 of the top and side angle members 40 and 41, respectively. This is clearly shown in Figs. 3 and 4. Due to the fact that the lower marginal portions of the side wallsv of the cover slide against the outer faces of the vertical walls 54 of the angle members, the lower corners of the side Walls of the casing are cut out, as shown at 18 in Figs. 1 and 6, so as to accommodate the corresponding lower corner portions of the side walls 100i the cover.

When it is desired to have access to the evaporator, the evaporator fan, and the proximal side of the motor and compressor, it is merely necessary to retract the cover inwardly, or to the right as viewed in Fig. 1, to the desired extent or, if necessary, until it rides completely oil the angle members 52. If it is desired to have access to the condenser, the condenser fan, or the distal portions of the motor and compressor, the tray 26 is withdrawn inwardly, or to the right as viewed in Fig. 1, until the parts referred to are accessible. By retracting the tray 26 inwardly until it clears the inner ends of the angle members 52, the operating parts of the air conditioning unit may be removed from the casing as a unit.

As will be seen from Fig. 2, the top and side walls of the casing are curved, thus leaving spaces which are suitably closed by filler pieces, not shown, or by means of some plastic material which can be readily applied. If desired, the casing may be made square or of any desired shape.

As shown in Figs. 3 and 4, the spaces 62 are sufficiently deep, and the engagement of the walls of the cover' with the walls defining these spaces is suiciently tight, so as to produce a relatively airtight joint and so as to prevent rattling of the cover due to operational vibrations. Also, by inserting the marginal portions of the cover into the spaces 62, the junction of the cover with the casing is rendered less conspicuous, thus improving the appearance of the casing.

While I have shown my invention in but one form, it will be obvious to those skilled in the art that it is not so limited, but is susceptible of various changes and modifications without departing from the spirit thereof.

What I claim is:

1. Mounting means for. a window-mounted air conditioning unit, said means comprising a casing having a top wall and side walls and adapted to be mounted in a window structure, the room end of said casing being open, angle members having vertical walls secured to the inner sides of the lower marginal portions of the side walls of the casing and inwardly-extending horizontal walls adapted to slidably support a tray carrying the assembled operating parts of the unit, said angle members extending inwardly into the room from the room end of the casing, a cover for closing the room end of said casing, said cover having a top wall, an end wall, and side walls, and means carried by the inner sides of the lower marginal portions of the side walls of the cover for slidably engaging the vertical walls of said angle members, said last-mentioned means and lower marginal portions being disposed on the inner and outer sides, respectively, of said vertical walls, whereby said cover may be supported by, and

moved on, said angle members towards or awavl from the open end of the casing.

2. 'Mounting means for a window-mounted air conditioning unit comprising a casing'adapted to be secured Vto the lower sill of a window,'said casing including a top wall and side walls, the room end of theucasing being open, angle members having vertical walls secured to the inner sides of the lower marginal portions of the side walls of the casing and inwardly-extending horizontal walls adapted to slidably support a tray on which the operating parts of the unit are assembled ,lthe bottom side of said casing being closed bysaid tray when the latter is` in position, said angle members extending inwardly into the room'beyondthe room end of the casing, a cover for .closing the room end of said casing, said cover including side walls and a top wall, and means carried by the inner sides of the lower marginal portions of the side walls of the cover for slidably engaging the vertical walls of said angle members,lsaid last-mentioned means and lower marginal portions being disposed on the inner and outer sides, respectively, of said vertical walls. whereby said cover may be supported by. and moved on, said angle members towards or away from the-open end of the casing.

3. Mounting means for a window-mounted room conditioning unit, said means comprising a casing 28 adapted to be mounted on the lower sill 32 of a window, said casing including sidel walls 38 and a top wall 36 and having its room end open, a cover 30 for closing the room end of the casing, said cover including side walls 'Il andf'a top wall 66, angle members 40 and l1 having-

walls

42 and 48 secured to the exterior of the top-and side walls of the casing adjacent and along the marginal portions at the room` end thereof, said marginal portions being spaced from the marginal portions of said angle member walls I2 and Il to provide spaces 62 opening toward the room end for receiving the marginal portions of thetop and side walls 66 and 10 of the cover 30, the other 'walls of said angle members projecting from said casing and adapted to serve for 45 2,081,109l

attaching the casing to the window.

4. Mounting means for a window-mounted air conditioning unit, said means comprising a case ing adapted to be mounted on the lower silhof a,

window and extending outwardly of the window 50.

,into the outside atmosphere, said casing including side walls and a top wall and having its room end open, angle members having walls secured along outer marginal portions thereof to the top and side walls of the casing near the room end of said casing, a cover for closing the open room end of the casing, said cover including a top wall and side wall, the marginal portions of the top and side walls ofthe casing being offset inwardly from the adjacent inner marginal portions of said angle member walls to provide spaces therebetween for 'receiving the marginal portions of the top and side walls of the cover, the other walls of the angle members projecting from the casing at the 'inner .edges of the rst-mentioned angle member walls.

5. The structure recited in claim 3 together with the angle members carried by said casing and extending into said casing and from the room end of the casing inwardly into the room, said members including vertical walls secured to the inner sides of the lower marginal portions of the side walls of the casing and horizontally disposed walls adapted to slidably support a tray on which the operating parts of the air conditioning unit are assembled, and means carried by the inner lower marginal portions of the side walls of said cover for slidably engaging said vertical walls and movably supporting said cover on said angle members, said last-mentioned means and lower marginal portions being disposed on the inner and outer sides, respectively, of said vertical walls.

ARTHUR H. EBERHART.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 99,764 Deering Feb. 1,5, 1870 893,648 Peters July 21, 1908 953,803- Sellers Apr. 5, 1910 Kilb May 18, 1937 2,115,720 Holmes May 3, 1938 2,186,316 i Balster Jan. 9, 1940 2,296,635 Foehrenback Sept. 22, 1942 2,335,627 Wolfert Nov. 30, 1943