US2631776A

US2631776A - Blower casing

Info

Publication number: US2631776A
Application number: US26150A
Authority: US
Inventors: Oscar C Palmer
Original assignee: PALMER Manufacturing CORP
Current assignee: PALMER Manufacturing CORP
Priority date: 1948-05-10
Filing date: 1948-05-10
Publication date: 1953-03-17
Anticipated expiration: 1970-03-17

Description

O. c. PALMER BLOWER cAsING March 17 Fiied May 1o, 1948 1N VEN TOR.

BY M K HQQ/VEVS Patented Mar. 17, n1953 UNITEDSTAT BLOWER CsING Oscar` C. Palmer,. Phoenix, Ariz., assignor to Palmer Manufacturing Corp., Phoenix, Ariz.,

a corporation of Arizona Application Mayll), 1948, Serial No. 26,150

ment, and is particularlyl directed to improve-V ments 1in evaporative coolers which are usedffor cooling 'and humidifying atmospheric air. -Evaporative'fcoolers commonly are provided with a fan or blower for drawing air through water saturated pads and directing the air through an outlet opening providedV in the shell or casing of the cooler unit. .Y

l The principal object of this invention is to pro--V vide an improved form of discharge opening for an .evaporative cooler..

Another Objectis to provide a cooler casing having a discharge opening in one wall thereof cooperatingin a" novel manner with the outlet of a blower housing mounted within the casing of the evaporative cooler unit.

kOther and more detailed objects and advantages will appear hereinafter.

In the drawings:

Figure l is a perspective view showing an evaporative cooler embodying my invention.

Figure 2 is a partial sectional view taken substantially on the lines 2-2 as shown in Figure 1. Figure 3 is asectional detail taken substantially on the lines 3-.3 as. shown in Figure 1.

Figure 4 is a partial sectional elevation taken substantially on the lines 4-4 as shownrin Figure 3. V

. Referring` to the drawings, the casing III is generally cubical in construction and fincludes the `usual top II, bottom I2, sides I3, .back I4, and front I 5. Evaporative cooler pads 9 are provided on each of the walls I3 and I4, while the top and bottom walls II and I2 are substantially imperforate. Covers I6 having multiple apertures I1 may be provided for the walls I3 and I4 if desired. A blower unit generally designated I8 is mounted within the enclosure I9 provided by the casing I8, and the function of this blower is to draw atmospheric air in through the apertures I1 and through water saturated evaporative pads into the enclosure I9 and then to blow it outwardly through the discharge opening 20 provided in the front wall I of the casing I0. This blower unit I8 may include a frame 2| mounted on rubber bushings 22 attached to the bottom wall I2. A blower housing 23 which may be of general involute shape is provided with upper and

lower walls

24 and 25 and side walls 26 which cooperate to dene the outlet end 21 of the blower unit.

A rotor 46 is provided with the usual blades 28` and is mounted on a rotary shaft 29 supported on pillow blocks 30. The pillow blocks 30 are bolted or otherwise secured to the frame 2l. A pulley 4 claims. (c1. 23o- 232) 2 6 3| fixed to theshaft 29 is adapted to be driven. from an electric motor 32 by means of a belt 33. Rotation of the pulley 3| by means of the motor 32 serves to cause rotation of the blower in the direction indicated by the arrow 34 and thus draw air in laterally through the side openings 35 in the side-walls 26, and expel the air outwardly through the outlet end of the blower unit.

g In accordance with my invention the front wall I5 is provided with an integral protrusion 36 extending forwardly of the plane dened by the front wall to enclose the outlet end of the blower unit I8. This protrusion 36 has a front face 31 disposed in-a plane parallelto the plane of the Wall I5 and is provided with an integral reentrant ange 38 extending rearwardly into the outlet end 21 of the blower unit and conforming to the shape thereto. The protrusion 36 and reentrant flange 38 are preferably formed from the same flat sheet of material as the front wall I5 and is preferably accomplished by means of 'stamping operations. As shown in the drawings, the protrusion 36 vand re-entrant flange 38 cooperate to provide continuous recess 39 into which the outletend 21 of the 4blower unit I8 projects. A continuous rubber-like gasket 40 is positioned between the ilange 38 and the walls of the blower unit forming the outlet end 21 in order to form a seal therebetween. As shown in the drawings, this rubber-like gasket 40 may be mounted on the outlet end 21 of the blower unit and adapted to contact the flange 38.

Vertically extending direction controlling vanes 4I may be mounted within the space bounded by the continuous flange 38. These vanes 4I may comprise strips having their ends turned at right angle and secured to the flange 38 by means of suitable fastener elements 42. These elements 42 may be adapted to permit the individual vanes 4I to be turned at any desired angle as shown at 4Ia in Figure 3. This construction employing the integral protusion 36 and the re-entrant continuous ange 38 reduces the number of forming operations. simplifies the design, and eliminates a number of parts employed in conventional evaporative coolers. The re-entrant ilange 38 also provides a highly advantageous support for the outlet end of the blower unit I8, thereby contributing to the supporting connection between the blower unit I8 and the casing I0.

The front face 31 of the protusion 36 forms a convenient control panel for regulating the operation of the evaporative cooler. The knob 43 may be adapted to operate the control switch (not shown) for the motor 32, and the knob 44 .may be 3 21 connected to control the ow of water to the a blower unit mounted within the chamber and evaporative pads. The center knob 45 may comhaving an outlet end for discharging air through prise a temperature and humidity indicating dial the discharge opening, the discharge opening in if desired and may be provided with a suitable said wall being formed by an integral protusion mounting for the name plate emblem. The elec- 5 extending forwardly from said Wall and having trical connections associated with the knob 43 as a reentrant ange cooperating with the pro- Well as the piping associated with the knob 44 tusion to dene a continuous recess, the recess have been'omitted in the drawing for clarity of being adapted to receive the extending outlet end illustration, since these constructional details are of the blower unit, the outlet end of the blower well understood in the art and form no part of 10 'unit being supported by said integral reentrant my present invention. --iiange with the load of said outlet end being ap- Having fully described my invention, it is to be plied to said flange in an area disposed exteriorly understood that I do not Wish to be limited to the of the plane of the latter of said Walls.

details herein set forth, but my invention is of 4. In a blowerinstallation having walls definthe full scope of the appended claims. L5 ingV a chamber, one of the walls having a dis- I claim: charge openingprovided therein through which 1. In a blower installation, the combination of air may behexpelled from the chamber; a comwalls defining a chamber, and a blower unit posi- Y binationof a blower unit mounted within the tioned within the chamber, said blower lunit hav- `chamber and having an Aoutlet end for discharging forwardly directed walls dening an outlet 2O ing air through the discharge Opening, the dise'nd, one of the walls formingv the chamber hav-l charge opening insaidwall being formed rbyY an ing an integral prctusion `extending forwardly integral protuson extending forwardly from saidl therefrom and having an integral reentrant Well and heVng e.. reenbreht flehge'COOpelefng fiange extending in telescopic relation with .rewith the protusionto denne a continuous recess,A

peet to the .Outlet @nd of the blower unit, the 25 the recessjbeingadaptedto receive the extending. outlet end of the blower unit being supportcdby outlet end of` theblOWer unit. the outlet end of said reentrant ange with the load Aof said outthe blower unit being supported by said integral let end being app-lied to said flange in an area, reentrantange with the load of said outlet end disposed exteriorly of the plane of the latter of being applied t0 Seid flange in an area disposed said wang 3o exteriorly ofthe plane of theflatter of said walls; 2; In a blower installation, the combination of and a resilient gasket interposedbetweenthe outwalls deni-ng a chamber, a blower unit posiiet end of the blower unitfand said ange' and tioned within the chamber, said blower unit havadapted t0 form a Seal therebetween.

ingA forwardly directed walls dening an outlet end, one of the walls forming the chamber hav- 35 i v Y' v- OSCAR C..PALMER; ij'ngl an integral protusion extendingforwardly if r v therefrom 'and having an integralv reentrant REFERENCES CITED ange extending in telescopic relation with re- A'The following' references are'ef record intheV s'p'ect to the outlet and of the blower unit, the 40 file of this patent: l outlet end of the blower unit being supported v 'I1-E1: q-T v by said reentrant flange with thek load of said UNITED'STATES PA' s outlet end being applied to said ange in an area Number Name Dalle Y disposed `exteriorly of the plane of the latter of @950,807 MOTS@ et" al Mar-113,. 1934 said Walls, and a continuous rubber-like gasket 21922515 'Feldel'maml -f----- NOV- 26,1935 interposed between the outlet of the blower unit; 45' V2,115,567 Anderson. Apk 26,' 1938 and Said flange l 2,130,327 Galson Sept, 131938- 3. In a blower installation having walls dening $225,740 y -Fenberg Dec. 24, 1940 a chamber, one of the wallshaving a discharge '2271342 KQP'S`----------- Jam 27; 19421 opening provided therein through which air may 2,296,155 Felnhelg Sept. 15, 1942'