US2795197A - Sump pump - Google Patents

Description

June 11, 1957 E. c. LASTEIR, sR.. ETAL SUMP PUMP 2 Sheets-Sheet 1 Filed May 1, 1956 INVENTORS EDWAR D c. LASTE R 82- THEOUQRE LPMENGE. SR.

wmu wm Arm-02MB Vs June 11, 1957 E. c. LASTER, sR.. ETIAL 2,795,197

- SUMP PUMP Filed May 1, 1956 2 Sheets-Sheet 2 INVENTORS EDWAZ'D c. LASTER s2 v-Heooaae MENGrE 52..

ATTORNEY 5 -SU1VIP PUMP Edward C. Laster,'fSr., and Theodore L. Menge, Sr., Shreveport, La.

Application May 1,195.6, Serial'No. 581,883

6 Claims. I ((21. 103 262 The present invention relates to asump pump.

An object of the present invention is 'to provide a pump for sucking a'body of liquid from-a sump .in which the suction is created in the vortex of a spirally moving stream of liquidunder pressure.

Another object of the present in'vention is to provide a sump pump which has no moving partsyone which is easily assembled and disassembled "for cleaning, and onewhich is highly eflfective inaction.

A further object of the presentinvention-isto pro- -vi'de-a sump pump which is of simplestructure, one sturdy in construction and one economical to manufacture and assemble.

These and other objects andadvantagesof the present invention willbe fully apparent from the following description when taken in connection with the annexed drawings, in which:

Figure 1 ha perspective view of the sump pump of-the present invention showing it in operative'position installed on a drum.

Figure 2 is a sectional view on an enlarged scale taken :on theline 2-2 of Figure 1.

Figure '3 is a sectional view taken on the line 3-3 of Figure 2.

:Figure '4 is tanexploded perspective view of the components of thesump pump of the present'invention.

Figure 5 is a perspective view of anotherform of the :sumppump according to the present invention.

.Figure 6 isua sectional viewtaken on the'l-ine 6--'6 of Figure -5, and

Figure 7 is -a'view in section of a'further'form of the sump pump according to the present invention showing it connected at each'end to a valved conduit.

I Referringto-Figures 1 to 4 or" the drawings, the sump pump of thepresent invention comprises an upstanding body it) having an inlet passage 11 extending inwardly from the lower end thereof and .an upright .wall 12 extending about the .perimeter of the upper end thereof. The end of thebody surrounding the inlet passage :11 is .of reduced section and is threaded and a threaded nipple 13 is detachably secured to that .end ofthe body. The upper end of a pipe 14 is screwed into thenipple 1'3 and constitutes a conduit for connectingthe body to .a closed space to be evacuated such as the drumshown in Figure 1,.and indicated by the reference numeral 15. The. body 10 isprovided with a well 16inthe portion @of the body adjacent the upper end and terminating point .of the-inletpassage 11. The portion of the body 10 above the top of the well 16 is provided with a spiral .passage 17 extending around the Well 16 and having one endterminating in a tangentially disposed second inlet '18 which is inscornmunication with the exterior of the --:body' 1fi. The-other end'of the-spiralpassage '17 is in communication with the well 16.

Means is provided for connecting thesecond inlet .18 to a source 'of-fluid under pressure. Specifically, this *means consists in an outwardly extending boss having internal :threads as at 21 in Figure 3, for the attachment having :a flat bottom 24 and an upstanding rim 25 ex- 'tending rabout .the boundary of the bottom 24 is positioned so that "the bottom 24 bridges and closes the spiral passage 17 with the rim engaging, by press fitting or :other'means, :the inner surface of the lower portion of theaupiight wall 12. Thebottom 24 of the cupmember 23 'is provided with a "discharge orifice 26 disposed concentrically with respect to "the inlet passage 11 and incommunication with theinner end of the spiral passage 17.

A deflector plate, indicated generally'by the reference numeral 27,having'a'flat top 28and a skirt 29 depending from the'flat' top 28 is positioned'so'that the flat top -28 -is--spaced fromithe cup member bottomi24 w'ith'the skirt 29 ofthe-deflector plate 27 engaging-the inner'surfiace of the upper portion .of theupright wall 12.

The upper portion of the Wall 12 is pro'videdwi'th a plurality of diseharge openings, 'here shown as four in number, indicated by'the reference'numeral 31, and the skirt '29 *of the deflector plate 27 is provided with the same number of discharge openings as at 32 which, when thedefiectorplate ,27 is in place extending over and spaced from thebottom 24 of the cup'member 23 and enclosing thecup member 23, are in registry with the discharge openings 31 in'the upper portion of the wall 12 and provide means for discharging liquid fromthe space betweenthe 'cupmember 23 and deflector plate 27.

As shown most clearly in Figure 3 and indicated 'by the reference numeral 33, each of the discharge-openings 31 is provided'with a knife edge to limit the turbulence of the fluids=being discharged from the'space between the bottom 24 of the cup member 23 and the inner face of thedeflector plate 27.

In operation, the sump pump of the present invention is used, as shown in Figure 1, for instance, to draw the air: from a drum .15 so that fluid may be admitted through a conduit asat 34 to the drum 15 for the purposes of filling the drum. Fluid under relatively high pressure is introduced to the body 10 through the conduit 22 and passes through the 'body in the direction indicated by the arrows in'Figures 2 and 3 to create an area of low pressure'or suction at the vortex of the stream'of fluid .flowingthrough the spiral passage and upwardly through the discharge orifice 26 in the cup member 23. The movement of the fluid from the inlet '18is'in ahelical path in the spiral passage 17 and in the well 16 and thence outwardly from the discharge orifice '26to the space between the deflector plate 27 and the cup *member 23. This creates an area of low pressure centrally of the Well 16 and'causes fluids to be drawn upwardly through the pipe 14 into the well to where'they are mixed and'disch-ar-ged with the fluid admitted through the. inlet =18.

Reverting to the form of Figures 5 and 6, the sump pump comprises an upstanding body 41-having an up right wall 42 extending about the perimeter at its upper end. A deflector plate 43 having a flat top 43 from which depends a skirt 55 is positioned so that it closes- 3 The body 41 is provided with a well 47 disposed concentrically with respect totthe inlet passage 44 and with for connecting the second inlet 49 to a source of fluid under pressure as in the embodiment shown in Figures 1 to 4 inclusive.

A cup member 50 having a flatbottom 51 and an upstanding rim 52 extending around the boundary of the bottom 51 is positioned sothat the bottom 51 bridges and 1 closes the spiral passage 48with ,the rim 52 engaging the inner surfaceof the lower portion of the upright wall 42. The bottom 51 of the cup member 50 is provided with a discharge orifice 53 disposed concentrically with respect to the inlet passage 44 in the well 47.

The upper portion of the wall 42 is provided with a plurality of discharge openings 54 for the discharge of fluid from the space between the bottom 51 of the cup member 50 and the cover 43.

In use of the pump of Figures and 6, the nipple, 46

may be connected to a drum by other conduit means, as in thefirst embodiment shown in Figures 1 and 2, and fluid under pressure may be admitted through the passage 49. The fluid flowing into the well and around the spiral passage 48 is discharged upwardly throughthe discharge orifice in the cup member 50 and due to its movement in a helical path, forms a low pressure area adjacent the inner end of the inlet passage, thereby effecting the suction through the nipple 46 and any attached conduit. The deflector plate 43 is positioned so that the flat top 43' is spaced from the cup member bottom 51 with the skirt 55 engaging the inner surface of the upper portion of the upright wall 42. Discharge openings 56 are provided in the skirt 55 in registry with the discharge open ings54.

Referring to the form of Figure 7, the sump pump comprises an upstanding body 61 having an inlet passage 62 in its lower end and a deflector plate 63 extending over its open upper end, there being provided another inlet passage 64 centrally of the deflector plate 63.

An upright wall 65 extends around the perimeter of the upper end of the body 61.= A well 66 is provided in the body 61 adjacent the inner end and terminating end of the inlet passage 62 and is arranged concentrically with respect to the inlet passage 62. The portion of the body 61 above the top of the well 66 is provided with a spiral passage 67 extending around the upper end of the well 66 and having one end terminating in a tangentially disposed second inlet 68 which is in communication with the exterior of the body 10..

The same means which connects the inlet 18 of the body m 2. source of fluid under pressure is used to connect the inlet 68 of the body 61, although not here illustrated.

A cup member 69 having a bottom 70 and an upstanding rim 71 extending about the boundary of the bottom 70 is positioned so that the bottom 70 bridges and closes the spiral passage 67 with the rim 71 engaging the inner surface of the lower portion of the upright wall 65. The bottom 70 of the cup member 69 is provided with a discharge orifice 72 disposed concentrically with respect to the inlet passage 62 in the lower end of the body 61 and also concentrically with respect to the inlet passage 64 which is'provided in the deflector plate 63.

The deflector plate 63 has a flat top 63'-from which depends a skirt 63", the deflector plate being positioned so that the flat top 63' is spaced from the cup member bottom 70 with theskirt 63"of the deflector plate 63 engaging the inner surface of the upper portion of the upright wall 65. Depending from the top 63" and extending about the end of the passage 64 adjacent the aforesaid top, is a lip 64' for preventing moisture from dripping into the suction area.

In the form of Figure 7, the body 61 and the deflector plate 63 each is formed with reduced portions 73 and 74 respectively, through which extend the respective inlet passages and to which are attached by threads, the nipples 75 and 76 respectively, for connecting each of the inlet passages 62 and 64 to a space'to be evacuated, such as the drum shown in Figure .1. A conventional valve 77 is attached to each of the nipples 75 and 76 for controlling the flow of fluid to the inlet passages 62 and 64.

The form of Figure 7 is similar in use to that previously described with the forms of Figures 1 to 4 inclusive, and Figures 5 and 6.' In use of the pump of Figure 7, when fluid under pressure is admitted through the inlet passage 68 and is discharged through the discharge orifice 72, it creates a low pressure area in the vicinity of the inner ends of each of the inlet passages 62 and 64. Either one of the latter may be selectively connected to a space to be evacuated and the suction created in the low pressure area adjacent the inlet passages 62 or 64 will cause fluid to be drawn from the space to be evacuated and dis charged through the registering discharge openings 78 and 63"? providedtin the upright, wall 65 and skirt 63" respectively.

What is claimed is:

1. A sump pump comprising an upstanding body provided with a well between the upper and lower ends and having aninlet passage in one of said ends, said inlet passage beingadapted to be connected to a closed space 4 means on said spiral passage inlet for attachment to a source of fluid under pressure, a deflector plate bridging the upper end of said body and closing said cup member, and discharge means onsaid deflector plate.

2. A sump pump comprising an upstanding body provided with a well between the upper and lower ends and having an inlet passage on each. of the upper and lower ends, each of said inlet passages being adapted to be connected to a closed space to be evacuated, there being formed in the portion of said body above the top of said well a spiral passage extending therearound and having one end terminating in a tangentially disposed inlet in communication with the exterior of said body and having the other end in communication with said well, a cup member including a flat bottom positioned so that the bottom bridges and closes the spiral passage containing portion of said body, said cup member bottom having a discharge orifice in communication with the other end of said spiral passage, means on said spiral passage inlet for attachment to a source of fluid under pressure, a deflector plate bridging the upper endof said body and closing said cup member, and discharge means on said deflector plate.

3. A sump pump comprising an upstanding body having an inlet passage extending inwardly from the lower end thereof, and adapted to be connected to a closed space to be evacuated, said body being provided with a well in the portion of said body adjacent the terminating point of said inlet passage, there being formed in the portion of said body above the top of said well a spiral passage extending therearound and having one end terminating in a tangentially disposed inlet in communication with the exterior of said body and having the other end in communication with said well, a cup member in cluding a fiat bottom positioned so that the bottom bridges and closes the spiral passage containing portion of said body, said cup member bottom having a discharge orifice in communication with the other end of said spiral passage, means on said spiral passage inlet for attachment to a source of fluid under pressure, a deflector plate bridging the upper end of said body and closing said cup member, and discharge means on said deflector plate.

4. A sump pump comprising an upstanding body having an inlet passage extending inwardly from the lower end thereof and an upright wall extending about the perimeter of the upper end thereof, said inlet passage adapted to be connected to a closed space to be evacuated, said body being provided with a well in the portion of said body adjacent the terminating point of said inlet passage, there being formed in the portion of said body above the top of said well a spiral passage extending therearound and having one end terminating in a tangentially disposed inlet in communication with the exterior of said body and having the other end in communication with said wall, a cup member including a flat bottom and an upstanding rim extending about the boundary of said bottom positioned so that the bottom bridges and closes the spiral passage containing portion of said body with the rim engaging the inner surface of the lower portion of the upright wall of said body, said cup member bottom having a discharge orifice in communication with the other end of said spiral passage, means on said spiral passage inlet for attachment to a source of fluid under pressure, and a deflector plate including a flat top and a skirt depending from said top positioned so that the top is spaced from said cup member bottom with the skirt engaging the inner surface of the upper portion of said upright wall, there being at least one discharge opening in the upper portion of said upright wall and a discharge opening in said skirt in registry with said discharge opening.

5. A sump pump comprising an upstanding body having an inlet passage extending inwardly from the lower end thereof and an upright wall extending about the perimeter of the upper end thereof, said inlet passage adapted to be connected to a closed space to be evacuated, said body being provided with a well in the portion of said body adjacent the terminating point of said inlet passage, there being formed in the portion of said body above the top of said well a spiral passage extending therearound and having one end terminating in a tangentially disposed inlet in communication with the exterior of said body and having the other end in communication with said well, a cup member including a flat bottom and an upstanding rim extending about the boundary of said bottom positioned so that the bottom bridges and closes the spiral passage containing portion of said body with the rim engaging the inner surface of the lower portion of the upright wall of said body, said cup member bottom having a discharge orifice in communication with the other end of said spiral passage, means on said spiral passage inlet for attachment to a source of fluid under pressure, a deflector plate including a flat top and a skirt depending from said top positioned so that the top is spaced from said cup member bottom with the skirt engaging the inner surface of the upper portion of said upright well, there being at least one discharge opening in the upper portion of said upright wall and a discharge opening in said skirt in registry with said discharge opening, said deflector plate being provided with another inlet passage extending inwardly thereof and adapted to be connected to a closed space to be evacuated.

6. A sump pump comprising an upstanding body having an upright wall extending about the perimeter of the upper end thereof, said body being provided with a well between the upper and lower ends, there being formed in the portion of said body above the top of said well a spiral passage extending therearoun-d and having one end terminating in a tangentially disposed inlet in communication with the exterior of said body and having the other end in communication wtih said well, a cup member including a flat bottom and an upstanding rim extending about the boundary of said bottom positioned so that the bottom bridges and closes the spiral passage containing portion of said body with the rim engaging the inner surface of the lower portion of the upright wall of said body, said cup member bottom having a discharge orifice in communication with the other end of said spiral passage, means on said spiral passage inlet for attachment to a source of fluid under pressure, and a deflector plate including a flat top and a skirt depending from said top positioned so that the top is spaced from said cup member bottom with the skirt engaging the inner surface of the upper portion of said upright wall, there being at least one discharge opening in the upper portion of said upright wall and a discharge opening in said skirt in registry with said discharge opening, said deflector plate being provided with another inlet passage extending inwardly thereof and adapted to be connected to a closed space to be evacuated.

References Cited in the file of this patent UNITED STATES PATENTS 1,658,797 Charette et al Feb. 14, 1928 2,639,084 MacKenzie May 19, 1953 2,642,895 Bertin et al. June 23, 1953

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