Modular Skid

Abstract

Disclosed is a modular skid assembly. The modular skid assembly may include a receiving portion to receive a container. The container may be a receptacle for a portable toilet assembly. A portable toilet assembly may be assembled onto the modular skid assembly.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No. 63/442,007, filed on Jan. 30, 2023. The entire disclosure of the above application is incorporated herein by reference.

FIELD

The present disclosure relates to a skid and/or base and particularly to a modular skid and/or base assembly able to be used with a portable toilet.

BACKGROUND

This section provides background information related to the present disclosure which is not necessarily prior art.

A base for a selected system may include a skid or runner portions. The base may also referred to as a skid on which a structure is placed. For example, a portable toilet may be positioned on and/or or attached to a skid. The skid may allow for transport and support of the portable toilet.

SUMMARY

This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

According to various embodiments, a modular skid and/or base assembly is disclosed. The modular skid and/or base may include various portions or members are that connected or assembled together to for the skid and/or base. As used herein, reference to a modular skid is not intended to limit the possible uses and/or portions used thereof.

The modular skid may include a skid base. The skid base may include one or more locking tabs. The locking tabs may allow for secure nesting.

The modular skid includes one or more runners. Each of the runners may attach to the skid base by nesting.

The modular skid may include a skid base, a skid runner assembly that may include a skid runner, and a skid cover and/or a foot or more than one foot. The pieces may be assembled into the modular skid with selected fasteners and/or connection mechanisms.

The skid runner assembly may include a shock absorbent toe or end. In part, the skid cover may include a valley or depression to assist in shock absorption and/or rigidity. The depression may also assist to catch the skid runner assembly as they are slid off a surface such as a hauling trailer.

The modular skid may be transported in an unassembled manner. Each of the modular components may include connection features such as tabs and/or clips for engagement in the nested configuration during transport.

Disclosed in various embodiments is a system comprising a modular skid assembly. The modular skid assembly comprises a skid base and a ground engaging portion. The ground engaging portion may include one or more of a skid runner assembly, a foot, or combinations thereof. The system may further include a fastener. A skid runner or a skid runner cover includes a rigid configuration. The fastener is configured to assemble all of the skid base, the skid runner, and the skid runner cover. The system may be, in various embodiments, included with a portable toilet assembled to the modular skid assembly. The skid base may include a receiving portion, wherein the receiving portion is configured to have a snap fit with a container. The system may also include a container. The skid runner assembly includes a skid runner and a skid runner cover. In various embodiments, each of the skid base, the foot, the skid runner, and the skid runner cover are configured to nest with respective other ones of the skid base, the foot, the skid runner, and the skid runner cover.

Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

DRAWINGS

The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

FIG. 1 is a perspective cutaway view of a portable toilet assembly;

FIG. 2 is a top perspective view of a modular skid and tank assembly;

FIG. 3 is a perspective view of various components in a nested configuration;

FIG. 4 is a top perspective exploded view of a skid assembly;

FIG. 5 is a top perspective exploded view of a skid assembly, according to various embodiments, including skid runner assemblies and feet, according to various embodiments;

FIG. 6 is a perspective view of a fastener insert;

FIG. 7 is a top perspective view of an assembled skid assembly;

FIG. 8 is a detailed exploded and assembled of a skid assembly;

FIG. 9 is a detailed cross-sectional view of an assembled skid assembly; and

FIG. 10 is a bottom exploded view of a skid assembly;

FIG. 11 is a detail view of a bottom of the skid base;

FIG. 12 is an exploded top perspective view of a modular skid assembly, according to various embodiments; and

FIG. 13 is a bottom plan view of the base.

Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings.

DETAILED DESCRIPTION

Example embodiments will now be described more fully with reference to the accompanying drawings.

FIG. 1 illustrates a portable toilet Assembly 20. The portable toilet assembly 20 may include a door assembly or door portion 24, sidewalls 26, and a tank 28. The portable toilet assembly may further include a modular skid assembly 40.

FIG. 2 illustrates the portable, also referred to as modular, skid assembly 40. According to various embodiments, the skid assembly 40 may have a tank or the tank 28 may be connected thereto. The tank 28, however, is not required as a portion of the modular skid 40. In various embodiments, the tank 28 may be coupled to the modular skid 40 at a selected assembly time and/or location. The portable skid assembly 40 may include a skid base 44, a skid runner assembly 90 including a skid runner 48 and a skid runner cover 52. In various embodiments, the skid assembly 40 may include one or more feet 31 (FIG. 3) alternatively or in addition to the skid runner assemblies 90. The skid base 44 may have or define various portions, as discussed herein.

FIG. 3 illustrates a plurality of each of the portions nested together. For example, a plurality of the skid bases 40s may be nested for various purposes, such as transport. Additionally, a plurality of the skid runners 48s may be nested, such as for delivery. Also skid runner covers 52s may be nested for various purposes, such as delivery. Additionally, a plurality of the containers 28s may be nested as may be other portions, such as a container top 29s and cleats or feet 31. Accordingly, each of the components may include a substantially continuous surface and a depression to allow for nesting. For example, the runners 52 may each have a depressed or recessed portion 52d that mates with a raised or second surface. Similarly, each tank 28 may be formed such that each may nest within an internal region 28i of another of the tanks 28. In various embodiments, the skid runner assembly 90 and/or the feet 31 may be ground or surface engaging members or portions.

FIGS. 4 and 5 illustrate an exploded view of the modular skid assembly 40. The modular skid assembly 40 may have components that are configured to be assembled to form the modular skid assembly 40, as illustrated in FIG. 2. The components may include at least the skid base 44, the skid runner 48, and the skid runner cover 52 that may be assembled. In various embodiments, the skid base 44, the skid runner 48, and the skid runner cover 52 may be assembled with various coupling portions. The coupling portion may include and/or be referred to as fasteners, such as one or more bolts 60, such as lag bolts. The lag bolts 60 may include a threaded tip 64 and a substantially smooth shank 68. The lag bolt 60 may be received into the skid base 44 and/or into coupling portion that may also include a fastener such as an insert or a fastener 72 (FIG. 6) that may be inserted therein, as discussed herein.

FIG. 6 illustrates the fastener in detail. The fastener or insert 72 may include an external feature 73 (e.g., a thread or barb) to engage the skid base 44 or another appropriate portion. The fastener or insert 72 may include an internal feature 75 (e.g., a thread or taper) to engage another appropriate portion, such as an external taper or thread of a fastener, such as a bolt as discussed herein.

The modular skid assembly 40 may be assembled by positioning or nesting the skid runner 48 to the or onto the skid runner cover 52. The skid base 44 may then be nested onto the skid runner 48. The base 44 may include pockets, as discussed herein, to engage one or more projections 76 of the skid runner 48. The lag bolt 60 may then be passed through bores or passed through the skid runner 48 and this skid runner cover 52 to engage the skid base 44, or the fastener 72 therein. For example, the lag bolt 60 may include an external thread 77 that engages the internal thread 75 in the assembled configuration, as discussed further herein. In various embodiments, various additional and/or alternative coupling portions may also be or referred to as fasteners such as a screw 80. Further one or more washers 84 may be used to assist in increasing a surface area for engagement.

The modular skid assembly 40, according to various embodiments, may include either the skid runner assemblies 90 and/or the feet 31. As discussed further herein, the skid runner assemblies 90 may be assembled to the base 44. In various embodiments, the feet 31 may alternatively and/or additionally be assembled to the base 44. The feet 31 may be assembled to the base 44 to allow for the base 44 to define a greatest exterior geometry or extent of the modular skid assembly 40 such that the feet 31 are within a perimeter of the base 44. Further, the feet 31 may allow for the engagement of the assembly 40 from all sides with a forklift by allowing clearance relative to the base 44.

According to various embodiments, as illustrated in FIG. 7, in an assembled configuration, the modular skid assembly 40 may include the skid base 44 and two of a skid runner assembly 90. The skid runner assembly 90 may include the skid runner 48 and the skid runner cover 52 assembled together. The two skid runner assemblies 90 may be assembled to the skid base 44, as discussed above.

The skid base 44 may include a grate or grating surface or portion 94. The grating may provide a pass through or ventilation to the portable toilet assembly 20. The base 44 may include connection bores 98. The connection bores 98 may be formed into the skid base 44 in an appropriate manner and may receive selected portions, such as to allow connection of the door assembly 24.

The base 44 may include a receiving portion or area 102 to receive the container or tank 28. The receiving area 102 may include engagement to portions or projections 108 that may positively engage the container 28. The projections 108 may project or extend from a surface 109 of the base 44 into the receiving area 102. The container 28 may include a respective ledge or indent to engage the projection 108. Accordingly, the container may have a snap fit or engagement fit with the skid assembly 40. It is understood, however, that the coupling or engagement regions may be reversed. Additionally or alternatively, the coupling may be gravity fit, friction fit, etc.

Further the skid base 44 may include projection or tabs 120. The tabs 120 may engage an undersurface, as illustrated in FIG. 3, of a respective another skid base to assist in holding and securing multiple skid bases relative to one another, such as for transport. The tabs 120 may therefore, assist in maintaining a nested configuration or assembly of more than one of the bases 44 during storage or transport when not assembled into the assembly 40.

With reference to FIGS. 8 and 9, the skid base assembly 40 may be assembled together, as discussed above and herein. For example, the skid base 44 may include one or more pocket regions 130 to receive one or more of the projections 76 of the skid runner 48. The pocket 130 may be formed by one or more wall portions 133 that may be formed with a selected geometry to ensure passage over the projection 76.

The lag bolt or fastener 60 may pass through the skid runner cover 52 and the skid runner 48 to engage a bore or blind bore 134 of the skid base 44. The blind bore 134 may be formed within the pocket region 130. Therefore, the projection 76 may assist in the aligning and engaging the skid runner 48 to the base 44. The fastener 60 may allow for a selected fixation of the skid runner assembly 90 to the base 44.

As discussed above, positioned within the blind bore may be the fastener 72, according to various embodiments. The bore 134 may be or included in a receiving region for one or more coupling portions, such as the insert fastener 72 and/or to directly receive the fastener 60. The base 40 and/or at least the portion that define the bore 134 may be formed of a polymer or other formable material. The fastener 72 may be formed of a metal or metal allow or other material that is harder and/or tougher than the material that forms the base 40. The fastener 72 may be placed or inserted into the bore 134 while the polymer of the base 44 is still warm or soft to assist in insertion and/or fixation of the fastener 72 to the base 44. The fastener 78 may however, be inserted (e.g., crewing) once the base 44 is formed. Additional fixation may also be used, such as an adhesive or set screw. Additionally, the alternative or additional fasteners 80 may pass through the skid runner cover 52 and engage a blind boar 140 in the skid runner 48 directly without the fastener 78.

The skid runner assembly 90 may include various configurations to assist in resisting deformation and increasing rigidity and shock absorption of the assembly. For example, the skid runner cover 52 may include one or more depressions or valleys 150 that include a selected wall geometry 154. The wall geometry 154 may include a curve or angle formations. The valleys or projections may extend transversely relative to a long axis 155 of the skid runner cover 52. The valley 150 may include a shape or formed portion of the skid runner cover 52 and may assist in providing rigidity to the skid runner cover 52 and the skid runner assembly 90 when assembled to the skid runner 48.

The valley 150 may also provide a stop when loading or unloading the assembly 40, such as engaging an edge 157 of a truck floor. The valley 155 may engage the edge 157 such as when the portable toilet 20 is being removed from a truck. The valley 155 may engage the edge 157 as the portable toilet is tilted or otherwise moved to the edge 157. Thus, the valley 155 may assist in resisting an unintended movement of the portable toilet 20. The valley 155 may be on an underside or ground engaging side of the skid runner cover 52.

The skid runner 48 may include a toe 160 at or near an end of the skid runner 48. The skid runner 48 may also include a depression or valley 164 inboard of the toe 160 or of a distal edge of the skid runner 48. The valley 164 may also assist in or provide a region of shock absorption such as mediation, such as when the two 160 is contacted in an abrupt manner. The valley 164 may also provide a tie down or retention region, such as for the skid assembly and/or the portable toilet 20. For example, the valley 164 may assist in resisting movement of a retention member, such as a strap or chord.

The modular skid assembly 40, including the various components configured to be assembled, allows the assembly to be transported in an unassembled configuration. Further, after assembly, the modular portions allow replacement of one or more portions without disposing of the entire assembly. Thus, the skid 40 may be repaired at a location without replacing the entire skid 40. This may assist in reducing material and repair time. In turn, this may increase efficiencies, including lower cost and lower waste material and/or material consumption.

With reference to FIG. 10, a bottom exploded view of the modular skid 40 is illustrated. The base 44 has a bottom that is open or partially open and may allow nesting with other bases, as discussed above, and/or nesting with the skid runner 48. The skid runner 48 may also include an open or partially open bottom to allow nesting with other of the skid runners 48 and/or the skid runner cover 52. The base 44 and the skid runner 48, therefore, may include an exterior wall that may engage and/or allow nesting with other portions. The nesting may reduce space for storage and transport. Again, this may lead to increased efficiencies, including reduced fuel consumption, storage or transport volume, etc.

The base 44 may further include an open bottom or portion to assist in cleaning and access. The base 44, however, may be rigid based on selected materials and design. For example, one or more ribs 161 may be provided in a selected configuration to assist in maintaining a rigidity of the base 44. The base 44 may be provided to support at least a mass or a person, the tank 28 filled with a selected volume of liquid, and the walls of the portable toilet 20, etc. Thus, the ribs 161 may be provided in a selected quantity, size, and configuration to achieve the selected support.

With additional reference to FIG. 11, the insert 72 may be inserted in the bore 134. The insert may engage the bolt 60, as discussed above. The insert 72 may be inserted into the bore 134 in an appropriate manner for engagement by the bolt 60 during assembly. It is understood by one skilled in the art, however, that the insert 72 may not be necessary. The bolt 60 may therefore, only engage the material forming the bore 134 (e.g., a polymer), engage only the insert 72, or engage both the bore 134 and the inset 72. If provided, the insert 72 may be held in the bore 134 by interaction with the material forming the bore 134, an adhesive, or other appropriate mechanism. As noted above, for example, the insert 72 may include the exterior formations 73 to assist in fixing the insert 72 in the bore 134.

Turning reference to FIG. 12, the assembly 40, according to various embodiments, includes the base 44. Assembled to the base 44 may be a plurality of the feet 31. The feet 31 may be assembled to the base 44 independently and without the skid runner assemblies 90. In other words, the feet 31 may be the only portions assembled to the base of 44 to engage a ground or support surface, rather than also the skid runner assemblies 90. Other portions of the portable toilet assembly 20, however, may also be assembled to the base assembly 40.

The feet 31 may be connected to the base 44 with one or more of the bolts 60. As illustrated in FIG. 12, each of the feet 31 may be assembled to the base 44 with a selected number of the bolts 60. Therefore, each of the feet 31 may 31 may be referred to by a letter and of the respective set of bolts 60 may also be referred to by a letter. For example, a foot 31a may be assembled to the base 44 with a set of bolts 60a. Thus, the foot 31a may be assembled to the base 44 with three of the bolts 60a. Similarly, a second foot 31b may be assembled with a set of three bolts 60b, a foot 31c may be assembled with an appropriate number of bolts, such as two or three both 60c, and a fourth foot 31d may be assembled with a set of three bolts 60d. In various embodiments, for example, a foot 31f may be assembled with four bolts 60f. Therefore, the base 44 may include engagement portions for an appropriate number of bolts or other fasteners to engage the feet 31 to the base 44. The fasteners, such as the bolts 60, may pass through selected bores or fastening regions 148 of the feet 31. The fastening regions 148 may be bores defined through the feet 31 to allow passage and/or engagement of the bolts 60.

With continuing reference to FIG. 12, and additional reference to FIG. 13, the base 44 may be used to allow for engagement of either the skid runner assemblies 90 or the feet 31. As discussed above, the base 44 may include a structure, such as the blind bore 134, to be engaged by respective fasteners to connect the skid runner assemblies 90. The same bores 134 may also be used to engage the bolts 60 for the feet 31 to the base 44. Accordingly, the base 44 may include a plurality of feet engagement regions or areas 160. In various embodiments, four of the areas 160 may be substantially identical and positioned at or near corners of the base 44. A fifth area 160′ may differ by including a selected number of fastener regions and being near a center of the base 44. Thus, the feet 31 may be assembled to the base 44 in a modular manner, according to various embodiments, including alternatively to the skid runners 90.

The feet 31 may also allow for engagement of the base in a selected manner. For example, as illustrated in FIG. 13, the positioning of the feet 31 may allow for the base 44 to be engaged by two forks of a forklift 182 from any of the sides of the base 44. For example, the base 44 may include a first side 44a. The positioning of the feet 31 relative to the base 44 may allow clearance for two forks 150a and 150b extending from the forklift 182, illustrated in phantom, to pass between the feet 31, and engage the base 44. Similarly, the base 44 may include a side 44b and the two forks 150a and 150b extending from the forklift 182, illustrated in phantom, may have clearance to pass under and engage the base 44. It is understood that the configuration may be mirrored on the other two sides of the base 44. Thus, the feet 31 may also allow for engaging the base 44 with forks or members from a selected system, such as the forklift 182, on any selected side.

The assembly 40 and its various portions and members allow for a modular system to be provided in smaller members, or smaller than an assembled assembly, for various purposes. This may decrease storage and/or transport costs and volume. It may further allow for compact movement of the various components. The modular system may also be efficiently and quickly assembled at a desired deployment location. Also, the modular system allows for a maintenance advantage by providing replacement components to be provided and used rather than replacing an entire or larger system, such as a base and skid.

The system allows for the assembly of any one of the portions to another, as discussed and illustrated above. Thus, the skid runner assemblies and/or the feet 31 may be coupled tot eh base 40. The wall 26 or the door 24 or both may be connected to the base 40. The tank 28 and/or other portions (e.g., a urinal, paper dispenser, etc.) may be coupled indirectly or directly to the base 40.

The portable toilet 20, therefore, may be and/or include modular portions to assist in delivery and installation thereof. Further, one or more of the modular portions may be individually assembled, dissembled, etc. for use and/or to continue use thereof.

The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those who are skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “comprising,” “including,” and “having,” are inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It is also to be understood that additional or alternative steps may be employed.

When an element or layer is referred to as being “on,” “engaged to,” “connected to,” or “coupled to” another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly engaged to,” “directly connected to,” or “directly coupled to” another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

Spatially relative terms, such as “inner,” “outer,” “beneath,” “below,” “lower,” “above,” “upper,” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Claims

1. A system comprising a modular skid assembly, wherein the modular skid assembly comprises:

a skid base;

a ground engaging portion including at least one of: a skid runner assembly, or a foot; and

a coupling portion;

wherein the coupling portion is configured to couple together all of the skid base and the ground engaging portion.

2. The system of claim 1, wherein skid runner assembly includes a skid runner and a skid runner cover.

3. The system of claim 2, wherein at least one of the skid runner or the skid runner cover includes a rigid configuration.

4. The system of claim 2, wherein the skid runner and the skid runner cover includes a plurality of skid runners and skid runner covers;

wherein the skid base includes a plurality of skid bases;

wherein each of the skid base, the skid runner, and the skid runner cover are configured to nest with respective other ones of the skid base, the skid runner, and the skid runner cover.

5. The system of claim 1, wherein the coupling portion couples together all of the skid base, the skid runner, and the skid runner cover.

6. The system of claim 1, wherein the coupling portion includes a first fastener and a second fastener;

wherein the skid base includes a coupling portion receiving region configured to receive the first fastener;

wherein the second fastener includes at least a first coupling portion to engage the first fastener.

7. The system of claim 6, wherein the first coupling portion is formed of a first material that is harder than a second material that forms the skid base.

8. The system of claim 1, further comprising:

a container that defines an internal volume;

wherein the skid base includes a receiving portion;

wherein the receiving portion is configured to engage and hold the container.

9. The system of claim 8, wherein the container has a snap fit with the skid base in the receiving portion.

10. The system of claim 1, further comprising:

a portable toilet assembled to the modular skid assembly.

11. The system of claim 9, wherein the portable toil assembly includes at least a wall and a door configured to be coupled to the skid base of the modular skid assembly.

12. The system of claim 1, wherein the foot includes a plurality of feet;

wherein the ground engaging portion includes the plurality of feet coupled to the skid base;

wherein the plurality of feet are coupled to the skid base configured to allow passage of a first fork and a second fork.

13. The system of claim 2, wherein the skid runner includes a depression configured as a shock absorption region of the skid runner and to receive a retention member.

14. A modular system having a modular skid assembly for a portable toilet, comprising:

a skid base having a first side and an opposed second side and a coupling region defined by the skid base near the second side;

at least one wall extending away from the first side;

a ground engaging portion configured to be coupled to the second side including at least one of: a skid runner assembly, or a foot; and

a coupling member configured to extend through the at least one of the skid runner assembly or the foot and engage the skid base at the coupling region;

wherein the coupling member is configured to couple together all of the skid base and the ground engaging portion.

15. The modular system of claim 14, wherein the skid runner assembly includes a skid runner and a skid runner cover.

16. The modular system of claim 15, wherein the skid base includes a plurality of skid bases;

wherein the skid runner includes a plurality of skid runners;

wherein the skid runner cover includes a plurality of skid runner covers;

wherein the foot includes a plurality of feet;

wherein a single one of the plurality of skid bases, the plurality of skid runners, the plurality of skid runner covers, or the plurality of feet is configured to next with another one of the plurality of skid bases, the plurality of skid runners, the plurality of skid runner covers, or the plurality of feet.

17. The modular system of claim 14, wherein each of the ground engaging portion is configured to be removably attached to the skid base.

18. A method for a modular system having a modular skid assembly for a portable toilet, the method comprising:

providing a skid base having a first side and an opposed second side and a coupling region defined by the skid base near the second side;

providing a ground engaging portion configured to be coupled to the second side including at least one of a skid runner assembly or a foot; and

providing a coupling member configured to extend through the at least one of the skid runner assembly or the foot and engage the skid base at the coupling region; and

providing the ground engaging portion with a passage such that the provided coupling portion is operable to couple together all of the skid base and the ground engaging portion.

19. The method of claim 18, further comprising:

coupling the ground engaging portion to the skid base.

20. The method of claim 19, further comprising:

providing at least one wall extending away from the first side.

21. The method of claim 20, further comprising:

coupling the at least one wall to the skid base.