Water well submersible pump filter

Abstract

The invention relates to a water well submersible pump filter. An example well submersible pump filter may include: (1) a perforated cover; (2) a perforated hollow cylindrical intermediate member joined to the perforated cover at a first end thereof; and (3) a filter crown comprising: (a) a hollow cylindrical crown section joined at a first end thereof to a second end of the perforated hollow cylindrical intermediate member, (b) a hollow conical crown section joined at a second end of the perforated hollow cylindrical intermediate member, (c) a hollow conical crown section joined at a first end thereof to a second end of the hollow cylindrical crown section, and (c) a fin ring joined to the second end of the hollow conical crown section and extending longitudinally from the second end of the hollow conical crown section. A second end of the hollow conical crown section may be joined to proximal ends of fins of the fin ring.

Description

Technical Field

[0001] The invention relates to a water well submersible pump filter. Background Art

[0002] A submersible well pump is a device that pushes water from underground water sources such as wells and reservoirs to the surface. As the name implies, a submersible well pump is usually submerged in the underground water source during operation and draws / pushes water through a specially designed impeller. The motor of a submersible well pump is also usually submerged in water during operation. Therefore, many submersible well pumps rely on the water flow around their motor created by the impeller to cool the motor during operation.

[0003] Water well submersible pumps are common in the agricultural industry and are used to bring water to the surface for irrigation and animal consumption. Water well submersible pumps can also be used in residential applications. Summary of the invention

[0004] An object of the present invention is to effectively filter debris from entering the impeller of a water well submersible pump while reducing / minimizing the negative impact on the operation of the pump.

[0005] According to a first aspect, a water well submersible pump filter is provided, comprising: a perforated cover; a hollow cylindrical intermediate member, the hollow cylindrical intermediate member being joined to the perforated cover at a first end of the hollow cylindrical intermediate member, wherein the hollow cylindrical intermediate member includes a perforated hollow cylindrical section near the first end of the hollow cylindrical intermediate member; and a filter crown, the filter crown comprising: a hollow cylindrical crown section, the hollow cylindrical crown section being joined to the second end of the hollow cylindrical intermediate member at the first end of the hollow cylindrical crown section, a hollow conical crown section, the hollow conical crown section being joined to the second end of the hollow cylindrical crown section at the first end of the hollow conical crown section, and a fin ring, the fin ring being joined to the second end of the hollow conical crown section and extending longitudinally from the second end of the hollow conical crown section, wherein the second end of the hollow conical crown section is joined to the proximal end of the fin of the fin ring.

[0006] According to a second aspect, another water well submersible pump filter is provided, comprising: a dome-shaped perforated cover; a hollow cylindrical intermediate member, the hollow cylindrical intermediate member being joined to the circular end of the dome-shaped perforated cover at the first end of the hollow cylindrical intermediate member, wherein the hollow cylindrical intermediate member comprises a perforated hollow cylindrical section; and a filter crown, the filter crown comprising: a hollow cylindrical crown section, the hollow cylindrical crown section being joined to the hollow cylindrical intermediate section at the first end of the hollow cylindrical crown section a second end of the member, a hollow conical crown segment joined to the second end of the hollow cylindrical crown segment at the first end of the hollow conical crown segment, wherein the diameter of the first end of the hollow conical crown segment is greater than the diameter of the second end of the hollow conical crown segment, and a fin ring joined to and extending longitudinally from the second end of the hollow conical crown segment, wherein the second end of the hollow conical crown segment is joined to the proximal ends of the fins of the fin ring.

[0007] The filter of the present invention prevents harmful debris from reaching the impeller of a submersible well pump into which the filter is inserted, while: (a) allowing sufficient water flow rate to cool the motor of the submersible well pump; and (b) optimizing / improving the structural integrity of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] According to one or more various examples, the present invention is described in detail with reference to the following drawings. These drawings are provided for illustration purposes only and depict only examples.

[0009] Figure 1 An example water well submersible pump installation is shown.

[0010] Figure 2A-2C Depicted is a perspective view of an example water well submersible pump filter according to various examples of the technology disclosed herein.

[0011] Figure 3A-3B Depicted is a perspective view of an example perforated cover for a water well submersible pump filter according to various examples of the technology disclosed herein.

[0012] Figure 4A Depicted is a perspective view of an example water well submersible pump filter including a hollow cylindrical midsection according to various examples of the technology disclosed herein.

[0013] Figure 4B Depicts various examples of the technology disclosed herein Figure 4A A perspective view of an example perforated subsection of a hollow cylindrical middle section.

[0014] Figure 5ADepicted is a perspective view of an example filter crown of a water well submersible pump filter according to various examples of the technology disclosed herein.

[0015] Figure 5B Shown is a perspective view of an example filter crown sub-portion according to various examples of the technology disclosed herein.

[0016] The drawings are not intended to be exhaustive and are not intended to limit the invention to the precise form disclosed. DETAILED DESCRIPTION

[0017] As mentioned above, a submersible well pump is a device that pushes water from underground sources such as wells and reservoirs to the surface.

[0018] like Figure 1 As shown in the example figure of FIG. 1 , a typical submersible water well pump (e.g., submersible water well pump 110) includes a generally cylindrical shape. During operation, such a submersible water well pump is typically suspended in a vertical orientation within a groundwater source (e.g., groundwater source 150). A pipeline (e.g., pipeline 120) can fluidly connect the submersible water well pump to an above-ground receiver of the water being pumped. In many cases, the groundwater source will be contained within a well casing (e.g., well casing 152). Although in Figure 1 In the specific example of FIG. 1 , the well casing 152 is depicted as an idealized / straight-edge cylinder, but in many cases the well casing may be more irregular in shape.

[0019] In a vertical orientation, the motor (e.g., motor 112) is typically located at the bottom of the submersible water well pump. The water inlet (s) and the impeller (e.g., impeller 114) are typically located higher up in the submersible water well pump. As described above, many submersible water well pumps rely on the water flow generated by the impeller around their motor to cool the motor during operation. Generally speaking, higher horsepower (HP) submersible water well pumps (i.e., submersible water well pumps with higher HP motors) require greater motor cooling and, therefore, greater water flow rates around their motors.

[0020] like Figure 1 As shown, a groundwater source (e.g., a groundwater source) in which a water well submersible pump is immersed often contains debris such as rocks, gravel, or other sediments. As an example of the technology disclosed herein, when the diameter of these debris is greater than about 2 millimeters (mm), the debris can seriously damage the impeller of the water well submersible pump during the water extraction process. Impeller damage can significantly reduce the life expectancy of the water well submersible pump, which can increase the operating costs of farmers and residential users who rely on these devices for water supply.

[0021] However, effectively filtering debris from entering the impeller of a submersible well pump while reducing / minimizing the negative impact on the operation of the pump is a daunting technical challenge. For example (and as described above), a submersible well pump typically relies on the water flow generated by the impeller to cool its motor during operation. In other words, if the water flow rate around the submerged motor is below a threshold level, the motor may not be adequately cooled during operation, thereby reducing the expected life of the motor. Therefore, even if the filter effectively prevents impurities from entering the impeller of the submersible well pump, if the filter does not allow sufficient / threshold water flow rate around the submerged motor during operation, the overall life expectancy of the submersible well pump may still be reduced due to insufficient motor cooling. Relatedly, insufficient water flow rate through the filter can also have a negative impact on the ability of the submersible well pump to draw water from a groundwater source. These water flow rate-related issues present technical challenges because the adjustable features of the filter that increase / improve the water flow rate through the filter (e.g., larger pores, more pores per unit area, etc.) typically reduce the filter's debris filtration efficiency and / or structural integrity.

[0022] In this context, examples of the technology disclosed herein provide a filter that is structured and sized specifically to prevent harmful debris from reaching the impeller of a water well submersible pump into which the filter is inserted, while: (a) allowing sufficient water flow rate to cool the motor of the water well submersible pump; and (b) optimizing / improving the structural integrity of the filter. As described in more detail below, this filter also includes unique / strategic design features that help improve ease of use.

[0023] Figure 2A-2C An example water well submersible pump filter of the technology disclosed herein is depicted in FIG. As shown, the water well submersible pump filter 210 may include: (a) a perforated cover 212; (b) a hollow cylindrical middle section 214; and (c) a filter crown 216. Figure 3A-3B , Figure 4A-4B and Figure 5A-Figure 5B Each of these components is described in more detail, as well as the advantages of their specific design features (e.g., the size and spacing design between the holes / perforations, the size design of the hollow cylindrical middle section 214 relative to the submersible well pump inserted into the submersible well pump filter 210, specific / strategic design features of the perforated cover 212 and the filter crown 216, etc.).

[0024] Figure 2A-2CAlso depicted is an example submersible water well pump 220 inserted into the submersible water well pump filter 210. As shown, the submersible water well pump filter 210 can be shaped / sized to accommodate conventional cylindrical submersible water well pumps, such as the submersible water well pump 220. In this regard, the submersible water well pump filter 210 can be provided in a variety of sizes to accommodate different sizes of submersible water well pumps (e.g., 4-inch pumps, 5-inch pumps, 6-inch pumps, 8-inch pumps, etc.).

[0025] As combined Figure 5A-Figure 5B As described in more detail, the filter crown 216 includes a fin ring that is sized / configured to be compressed / folded radially inwardly around the top cylindrical section of the water well submersible pump 220. Once compressed / folded radially inwardly, the fins can be secured to the top cylindrical section of the water well submersible pump 220 using a variety of means, including waterproof tape, mechanical couplings such as rings or bands, etc. By securing the water well submersible pump filter 210 to the water well submersible pump 220, the two devices can be easily lowered into an underground well or reservoir in tandem (as described in more detail below, in some examples, the perforated cover 212 can include a dome shape, which helps to make it easier / smoother to insert the water well submersible pump filter 210 into an irregularly shaped well casing). In related regard, the specific structure of the filter crown 216 (i.e., a fin ring that is sized / configured to be radially compressed / folded inward around the top cylindrical section of the water well submersible pump 220) facilitates a user-friendly method of securing the water well submersible pump filter 210 to / removing it from the water well submersible pump 220.

[0026] like Figure 2C As best shown in the cross-sectional perspective view of FIG. 2 , the submersible water well pump 220 may include a motor 224 located at the bottom (or end facing the bottom of the well) of the submersible water well pump 220. As described above, this is a conventional location for the motor of a submersible water well pump. Figure 2A-2CAs shown, the size of the hollow cylindrical middle section 214 can be designed so that when the water well submersible pump 220 is inserted into the water well submersible pump filter 210, the motor 224 is surrounded by the perforated section of the hollow cylindrical middle section 214. This is another strategic design feature of the water well submersible pump filter 210, which allows for improved / increased water flow around the motor 224 during pump operation, thereby providing improved / sufficient motor cooling. In contrast, in some implementations, the size of the hollow cylindrical middle section 214 can be designed so that the non-perforated section of the hollow cylindrical middle section 214 surrounds the upper portion of the water well submersible pump 220, and the water inlet (e.g., water inlet 222) and the impeller of the water well submersible pump 220 are located in the upper portion. Here, the absence of perforations around the water inlet / impeller can further reduce the possibility of harmful debris entering the impeller. In this regard, a section of the hollow cylindrical middle section 214 without perforations can reduce manufacturing costs and improve the overall structural integrity of the hollow cylindrical middle section 214. Similarly, although the water flow rate may be reduced within the non-perforated section of the hollow cylindrical middle section 214, this reduction in water flow rate should not have a negative impact on motor cooling because the water flow rate around the motor 224 should be relatively high because the motor 224 is surrounded by the perforated section of the hollow cylindrical middle section 214 and the perforated cover 212.

[0027] In various examples, the water well submersible pump filter 210 (including its various components) can include synthetic polymers such as polyvinyl chloride (PVC), various versions of acrylonitrile-butadiene-styrene (ABS), polypropylene, etc. As described below, each of the perforated cover 212, the hollow cylindrical middle section 214, and the filter crown 216 can include one or more separate injection molded parts assembled / joined together. For example, when the water well submersible pump filter 210 (including its various components) includes PVC, PVC glue can be used to join / assemble separate injection molded parts. Here, the choice of PVC (or related materials) can be well suited to the agricultural industry, which generally uses and recognizes PVC.

[0028] Figure 3A-3B A perspective view of an example perforated cover 312 of a water well submersible pump filter according to various examples of the technology disclosed herein is depicted. Here, the perforated cover 312 may include Figure 2A-2C The perforated cover 212 has the same / similar structure.

[0029] As shown, the perforated cover 312 can include a perforated dome-shaped segment 312 (a) and a non-perforated hollow cylindrical segment 312 (b). In some examples, the perforated cover 312 can be injection molded as a single piece. However, in other examples, the perforated dome-shaped segment 312 (a) and the non-perforated hollow cylindrical segment 312 (b) can be injection molded separately and joined together (e.g., using PVC glue).

[0030] As described above, when the associated water well submersible pump filter is lowered into an irregularly shaped well casing, the dome shape of the perforated dome-shaped segment 312(a) can facilitate easier / smoother insertion. In other words, when the associated water well submersible pump filter is lowered into an irregularly shaped well casing, an alternative design including a flat top cover instead of a dome-shaped cover is more likely to catch / get stuck on the irregular portion of the well casing.

[0031] Relatedly, the holes in the perforated dome-shaped segment 312(a) can allow for increased / improved water flow rates around the motor of a water well submersible pump, which is typically located above (and relatively close to) the perforated dome-shaped segment 312(a) (see, e.g. Figure 2C ). The increased / improved water flow rate allowed by the holes of the perforated dome-shaped segment 312(a) is particularly important for cooling higher HP motors. In other words, alternative designs using non-perforated covers may not allow sufficient water flow during operation to cool these higher HP motors, resulting in a reduced life expectancy of the motors.

[0032] As described above, the size and spacing design of the holes of the perforated dome-shaped segment 312 (a) can also be optimized to balance the water flow rate allowance with the following factors: (a) debris filtration efficiency; (b) structural integrity considerations; and (c) manufacturing cost reduction. For example, example tests conducted according to the technology disclosed herein found that debris with a diameter greater than about 2 mm significantly increased impeller damage, while debris with a diameter less than 2 mm was much less likely to cause impeller damage. Although in theory any hole diameter less than 2 mm should filter out particularly harmful debris, smaller hole diameters can also have a negative impact on water flow rate. Relatedly, although more holes per unit area can increase water flow rate when smaller diameter holes are used, more holes per unit area reduce structural integrity and increase manufacturing costs.

[0033] Taking all these factors into consideration, an example test was performed according to the technology disclosed herein to determine the optimal aperture and spacing of the perforated components (e.g., the perforated cover and the perforated section of the hollow cylindrical intermediate member) of the water well submersible pump filter of the technology disclosed herein. According to the test, some implementations utilize an aperture between 1.5mm and 2.5mm, and a spacing between 3mm and 4mm along the diagonal between each hole. However, it should be understood that in other implementations, different hole diameters and spacings can be used. In connection therewith, in various implementations, the perforated cover 312 can include a flat top (i.e., non-dome-shaped) cover, and / or be non-perforated.

[0034] Figure 4AA perspective view of an example water well submersible pump filter 410 according to various examples of the technology disclosed herein is depicted, the filter including a hollow cylindrical middle section 414. As shown, the water well submersible pump filter 410 may include a Figure 2A-2C The water well submersible pump filter 210 is of the same / similar construction.

[0035] As shown, the hollow cylindrical middle section 414 may include a perforated hollow cylindrical section 414(a) and a non-perforated hollow cylindrical section 414(b). In various examples, the perforated hollow cylindrical section 414(a) and the non-perforated hollow cylindrical section 414(b) may be separately injection molded and joined together (e.g., using PVC glue). The bottom end (i.e., the end facing the bottom of the well) of the perforated hollow cylindrical section 414(a) may be joined to the top circular end of the perforated cover 412 in the same / similar manner. Similarly, the top end of the non-perforated hollow cylindrical section 414(b) may be joined to the bottom end of the filter crown 416 in the same / similar manner. Although in Figure 4A and Figure 2A-2C Not shown in the specific examples, but in various examples, the perforated hollow cylindrical segment 414(a) may include multiple subsegments joined by a connector (e.g., a connector that: (1) is joined to the top end of the bottom subsegment of the perforated hollow cylindrical segment 414(a) at the bottom end of the connector; and (2) is joined to the bottom end of the top subsegment of the perforated hollow cylindrical segment 414(a) at the top end of the connector).

[0036] As shown, in some examples, the non-perforated hollow cylindrical segment 414(b) may include: (i) a hollow cylindrical coupler 414(b)(i) coupling the top end of the perforated hollow cylindrical segment 414(a) to the bottom end of the non-perforated hollow cylindrical sub-segment 414(b)(ii); (ii) a non-perforated hollow cylindrical sub-segment 414(b)(ii); and (iii) a hollow cylindrical coupler 414(b)(iii) coupling the top end of the non-perforated hollow cylindrical sub-segment 414(b)(ii) to the bottom end of the filter crown 416. In these examples, the hollow cylindrical coupler 414(b)(i), the non-perforated hollow cylindrical sub-segment 414(b)(ii), and the hollow cylindrical coupler 414(b)(iii) may be separately injection molded and joined together (e.g., using PVC glue).

[0037] As described above, the size of the hollow cylindrical middle section 414 can be designed so that when the water well submersible pump 420 is inserted into the water well submersible pump filter 410, the motor of the water well submersible pump 420 is surrounded by the perforated hollow cylindrical section 414 (a). This is another strategic design feature of the water well submersible pump filter 410, which allows for improved / increased water flow around the motor during pump operation, thereby providing improved / adequate motor cooling. In contrast, in some implementations, the size of the hollow cylindrical middle section 414 can be designed so that the non-perforated hollow cylindrical section 414 (b) surrounds the upper portion of the water well submersible pump 420, where the water inlet and impeller of the water well submersible pump 420 are located. Here, the absence of perforations around the water inlet / impeller can further reduce the possibility of harmful debris entering the impeller. Relatedly, the non-perforated hollow cylindrical section 414 (b) has no perforations, which can reduce manufacturing costs and improve the overall structural integrity of the hollow cylindrical middle section 414. Likewise, while the water flow rate within the non-perforated hollow cylindrical segment 414(b) may be reduced, this reduction in water flow rate should not negatively impact motor cooling since the water flow rate around the motor should be relatively high due to the motor being surrounded by the perforated hollow cylindrical segment 414(a).

[0038] Other parameters of the hollow cylindrical middle section 414 may also be optimized to improve / increase the water flow rate into and within the water well submersible pump filter 410. For example (and as described above), the size and spacing design of the holes of the perforated hollow cylindrical section 414 (a) may also be optimized to balance the water flow rate allowance with the following factors: (a) debris filtration efficiency; (b) structural integrity considerations; and (c) manufacturing cost reduction. As described above, it is known through testing conducted according to the technology disclosed herein that certain implementations utilize pore sizes between 1.5 mm and 2.5 mm, and spacing between 3 mm and 4 mm along the diagonal between each hole (it should be understood that other implementations may utilize pore sizes and spacing designs outside of these ranges, such as to accommodate water well submersible pumps of different sizes and HP). As another example, the hollow cylindrical middle section 414 may be specifically sized to allow a radial clearance of 3 millimeters (mm) to 13 millimeters between the outer periphery of the water well submersible pump 420 and the inner periphery of the hollow cylindrical middle section 414. Here, a smaller radial gap can limit / reduce the water flow rate within the water well submersible pump filter 410. In contrast, a larger radial gap may increase material cost and overall volume, which may make it more difficult to insert a narrow well casing. It should be understood here that the optimal radial gap between the water well submersible pump filter and the water well submersible pump may vary depending on the size and HP of the water well submersible pump. Therefore, in various implementations, the radial gap between the water well submersible pump filter 410 and the water well submersible pump 420 may be less than 3 mm, or greater than 13 mm.

[0039] In some implementations, the perforated hollow cylindrical segment 414 ( a ) can include multiple subsections that are joined together (eg, by PVC glue).

[0040] Figure 4B A perspective view of an example perforated subsection 414(a)(i) of a perforated hollow cylindrical segment 414(a) is depicted. As shown, the perforated subsection 414(a)(i) can span the perforated hollow cylindrical segment 414(a) longitudinally. In various examples, the perforated hollow cylindrical segment 414(a) can include 3-8 perforated subsections having the same / similar construction as the perforated subsection 414(a)(i). Each perforated subsection can be injection molded separately and joined to other perforated subsections (e.g., by PVC glue). This construction / assembly can improve the structural integrity of the perforated hollow cylindrical segment 414(a), and / or reduce manufacturing costs.

[0041] Figure 5A Depicted is a perspective view of an exemplary filter crown 516 of a water well submersible pump filter according to various examples of the technology disclosed herein.

[0042] As shown, the filter crown 516 may include: (a) a hollow cylindrical crown segment 516(a); (b) a hollow conical crown segment 516(b), which is joined to the hollow cylindrical crown segment 516(a) at a first end of the hollow conical crown segment 516(a); and (c) a fin ring 516(c) extending longitudinally from a second end of the hollow conical crown segment 516(b).

[0043] In various implementations, the filter crown 516 may be injection molded as a single piece, while in other examples, the various structural components of the filter crown 516 may be injection molded separately and joined together (eg, using PVC glue).

[0044] like Figure 2A-2C and Figure 4A As shown, the bottom end of the hollow cylindrical crown segment 516(a) can be engaged to the hollow cylindrical middle section of the water well submersible pump filter. The top end of the hollow cylindrical crown segment 516(a) can be engaged to the bottom end of the hollow conical crown segment 516(b). Similarly, the top end of the hollow conical crown segment 516(b) can be engaged to the proximal end of the fins of the fin ring. The diameter of the bottom end of the hollow conical crown segment 516(b) can be larger than the diameter of the top end of the hollow conical crown segment 516(b). This reduction in diameter can help the filter crown 516 (including the fin ring 516(c)) to be more tightly secured around the top cylindrical section of the water well submersible pump inserted into the water well submersible pump filter. As Figure 5AAs shown, in some implementations, the hollow conical crown segment 516(b) can include a notch 516(b)(i) extending from the top end of the hollow conical crown segment 516(b) toward the bottom end of the hollow conical crown segment 516(b). The notch 516(b)(i) can be sized to accommodate a wiring trunk of a submersible water well pump inserted into the submersible water well pump filter. As shown, there can be no fins above the notch 516(b)(i) to further accommodate the wiring trunk.

[0045] As shown, the fins of the fin ring 516 (c) can extend longitudinally from the second end of the hollow conical crown segment 516 (b). In other words, the fins of the fin ring can extend generally parallel to the common axis of the hollow cylindrical crown segment 516 (a) and the hollow conical crown segment 516 (b). Figure 2A-2C and Figure 4A As shown, the common axis of the hollow cylindrical crown segment 516 ( a ) and the hollow conical crown segment 516 ( b ) may also be shared with the hollow cylindrical middle segment (eg, hollow cylindrical middle segment 214 or 414 ) to which the filter crown 516 is joined.

[0046] As described above, the size and shape of the fin ring 516 (c) can be designed to be radially compressed / folded inwardly around the top cylindrical section of the water well submersible pump inserted into the water well submersible pump filter. For example, fin 516 (c) (i) tapers from the proximal end of fin 516 (c) (i) to the distal end of fin 516 (c) (i). The other fins of the fin ring 516 (c) taper in a similar manner. Therefore, there may be triangular slits between the front fins. When the fins are radially compressed inwardly around the top cylindrical section of the water well submersible pump inserted into the water well submersible pump filter, these slits can be reduced / minimized. Once radially compressed inwardly, the fins can be fixed to the top cylindrical section of the water well submersible pump using various devices (including waterproof tape, mechanical connectors such as rings or belts, etc.). By fixing the water well submersible pump filter to the water well submersible pump, the two devices can be easily lowered into an underground well or reservoir one after the other. In related regard, the specific structure of the filter crown 516 (i.e., a tapered fin ring sized / shaped to be compressed radially inward around the top cylindrical section of a submersible well pump) facilitates a user-friendly method of securing the submersible well pump filter to and / or removing it from a submersible well pump.

[0047] In some examples, filter crown 516 may include two (half) sub-sections that are injection molded separately and then joined together (eg, by PVC glue). Figure 5B Depicted Figure 5AA perspective view of an example filter crown subportion 516(A) of a filter crown 516. As shown, the filter crown subportion 516(A) may include a half portion that longitudinally spans the filter crown 516. The filter crown subportion 516(A) may be joined to a corresponding (half) filter crown subportion to form the filter crown 516. This method for forming the filter crown 516 may improve the structural integrity of the filter crown 516 and / or reduce manufacturing costs. In various embodiments, the filter crown 516 may include more than two subportions that are separately injection molded and then joined together (e.g., by PVC glue).

[0048] As used herein, the term "or" may be interpreted in an inclusive or exclusive sense. In addition, descriptions of resources, operations, or structures in the singular should not be interpreted as excluding the plural. Unless otherwise specifically stated or understood otherwise in the context of use, conditional language, especially such as "may," "might," "might," or "can," is generally intended to convey that certain embodiments include and other embodiments do not include certain features, elements, and / or steps.

[0049] Unless expressly stated otherwise, the terms and phrases used herein and variations thereof should be construed as open ended, rather than limiting. Adjectives such as "conventional," "traditional," "normal," "standard," "known," and terms of similar meaning should not be construed to limit the items described to a given time period or items available as of a given time, but should be read to include conventional, traditional, normal, or standard technology that may be available or known at any time now or in the future. In certain cases, the presence of broad words and phrases such as "one or more," "at least," "but not limited to," or other similar phrases should not be read to mean that a narrower situation is intended or required where such broad phrases may not exist.

Claims

1. A water well submersible pump filter, comprising: perforated cover; a hollow cylindrical intermediate member joined to the perforated cover at a first end of the hollow cylindrical intermediate member, wherein the hollow cylindrical intermediate member comprises a perforated hollow cylindrical section proximate the first end of the hollow cylindrical intermediate member; and A filter crown, the filter crown comprising: a hollow cylindrical crown segment joined at a first end of the hollow cylindrical crown segment to a second end of the hollow cylindrical intermediate member, a hollow conical crown segment joined at a first end of the hollow conical crown segment to a second end of the hollow cylindrical crown segment, and a fin ring joined to and extending longitudinally from the second end of the hollow conical crown section, Wherein, the second end of the hollow conical crown section is joined to the proximal end of the fin of the fin ring.

2. The water well submersible pump filter according to claim 1, wherein: The perforated cover includes a dome shape.

3. The water well submersible pump filter according to claim 1, wherein: The hollow conical crown segment includes a notch extending from the second end of the hollow conical crown segment toward the first end of the hollow conical crown segment, and The recess is sized to receive a wiring main of a submersible water well pump inserted into the submersible water well pump filter.

4. The water well submersible pump filter according to claim 1, wherein: Each fin of the fin ring tapers from a proximal end of each fin to a distal end of each fin.

5. The water well submersible pump filter according to claim 1, wherein: The fin ring is sized to compress radially inwardly around a cylindrical section of a submersible water well pump inserted into the submersible water well pump filter.

6. The water well submersible pump filter according to claim 1, wherein: The diameter of the hollow cylindrical intermediate member is dimensioned to surround a submersible well pump centrally inserted into the submersible well pump filter with a radial clearance of between 3 mm and 13 mm.

7. The water well submersible pump filter according to claim 1, wherein: The hollow cylindrical intermediate member further comprises a non-perforated hollow cylindrical section; A first end of the perforated hollow cylindrical section is joined to a circular end of the perforated cover; The second end of the perforated hollow cylindrical segment is joined to the first end of the non-perforated hollow cylindrical segment; and The second end of the non-perforated hollow cylindrical section is joined to the filter crown.

8. The water well submersible pump filter according to claim 7, wherein: The lengths of the perforated hollow cylindrical segment and the non-perforated hollow cylindrical segment are sized such that the perforated hollow cylindrical segment surrounds a motor of a submersible water well pump inserted into the submersible water well pump filter.

9. The water well submersible pump filter according to claim 1, wherein: The perforated hollow cylindrical section comprises a plurality of perforated subsections joined together; and Each perforation subsection spans longitudinally across the hollow cylindrical section of the perforation.

10. The water well submersible pump filter according to claim 1, wherein: The diameter of the holes of the perforated cover and the holes of the perforated hollow cylindrical section is between 1.5 mm and 2.5 mm.

11. The water well submersible pump filter according to claim 1, wherein: The holes of the perforated cover and the holes of the perforated hollow cylindrical section are spaced 3 mm to 4 mm apart along the diagonal between the individual holes.

12. The water well submersible pump filter according to claim 1, wherein: The perforated cover, the hollow cylindrical intermediate member, and the filter crown comprise synthetic polymer plastic.

13. The water well submersible pump filter according to claim 12, wherein: The synthetic polymer plastics include polyvinyl chloride (PVC).

14. The water well submersible pump filter according to claim 13, wherein: The perforated cover, the hollow cylindrical intermediate member, and the filter crown are bonded together by PVC glue.

15. A water well submersible pump filter, comprising: dome-shaped perforated cover; a hollow cylindrical intermediate member joined to a circular end of the dome-shaped perforated cover at a first end of the hollow cylindrical intermediate member, wherein the hollow cylindrical intermediate member comprises a perforated hollow cylindrical section; and A filter crown, the filter crown comprising: a hollow cylindrical crown segment joined at a first end of the hollow cylindrical crown segment to a second end of the hollow cylindrical intermediate member, a hollow conical crown segment joined at a first end of the hollow conical crown segment to a second end of the hollow cylindrical crown segment, wherein the diameter of the first end of the hollow conical crown segment is greater than the diameter of the second end of the hollow conical crown segment, and A fin ring is joined to and extends longitudinally from the second end of the hollow conical crown segment, wherein the second end of the hollow conical crown segment engages the proximal ends of the fins of the fin ring.

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