A. Field of the Invention
The present disclosure generally relates to nozzle mounting assemblies for swimming pools, and more specifically to mounting assemblies for attaching in-floor swimming pool cleaning systems.
B. Background Art
In-floor cleaning systems are common in the swimming pool industry. These systems typically consist of pop-up and retractable cleaning nozzles installed in the floor and stairs of a swimming pool. The nozzles are connected to a water supply piping system that is fed from a pool pump. When the cleaning system is not activated, the cleaning nozzles are retracted into a retaining collar and are substantially flush with the surface of the swimming pool. When the cleaning system is then activated, pressurized water from the pump causes the nozzles to pop up from the flush position and to eject a stream of water across the floor surface of the swimming pool.
When a series of nozzles are embedded in the floor of a swimming pool, water flow through nozzles can be used to stir up debris and contaminants on the pool floor. Often, nozzles used in swimming pool applications contain components that allow their position to be automatically adjusted after each period of use to enable gradual spraying of the entire surface of pool floor.
In-floor cleaning systems are commonly used with swimming pool installations that are poured at an excavation site. These pool surfaces may be formed of concrete, plaster, various composites or other materials as known in the applicable art. In-floor cleaning systems may also be used with fiberglass pools. Fiberglass pools generally include a one-piece shell, made with at least fiberglass and resins, and finished with a gel coating.
Fiberglass pools are generally manufactured in a factory setting. After the fiberglass pool shell is created, several pool shells are stacked onto a truck trailer at the manufacturing site and transported to a warehouse, retail outlet or installation location. Standard designs for in-floor cleaning systems require that certain plumbing components be formed into the fiberglass shells at the factory that can be coupled to in-ground plumbing at the installation site. The plumbing parts that are typically molded into the fiberglass shell include a nozzle connector and an elbow section. This is accomplished at the factory by placing the nozzle connector and elbow on the pool casting as the fiberglass pool shell is being created so that the nozzle connector and elbow become an integral part of the shell. When nozzle connectors with elbow sections are formed into the shell, they extend six or more inches from the bottom surface of the shell. When the shells are stacked, spacers are placed between the shells to protect the shells and the plumbing extensions. These plumbing extensions that include the elbow joint encased in fiberglass and resin limit the number of fiberglass shells that may be loaded onto a trailer and increase the risk of damage to the fiberglass pools due to their height.
Traditional nozzle connectors attached to an elbow joint are difficult to consistently align perpendicular to the pool surface when placed within a fiberglass pool casting. It is common, therefore, for the top surface of a nozzle connector to be slightly angled after a fiberglass shell has been formed. This alignment inconsistency can be problematic for field installers who are responsible for connecting all of the plumbing to the in-floor cleaning systems. When the pop-up nozzles are not perpendicular to the surrounding pool surface or are not maintained at a set height in relation to the interior pool surface, they are less efficient during the cleaning process and require filing or other trimming of the nozzle connector that extends from the inside surface of the pool. Alignment problems can also lead to water leaks at points where the fiberglass shell is not fully secured to a nozzle connector.
In one aspect, a swimming pool nozzle mounting assembly includes a plurality of mounting rings and a swimming pool shell with an inner pool surface. The swimming pool shell is formed around the plurality of mounting rings. The plurality of mounting rings is formed of a material that is compatible with fiberglass resins. The plurality of mounting rings may include an inside wall with a substantially cylindrical inner surface defining an inner diameter, and an outside wall with a substantially cylindrical surface and including at least one protrusion. The plurality of mounting rings each also includes open first and second ends.
Particular implementations of a nozzle mounting assembly may also include a plurality of nozzle retainer bodies where each nozzle retainer body corresponds to one of the plurality of mounting rings. Each nozzle retainer body may include a substantially cylindrical outside surface with an outside diameter that is smaller than the inner diameter of the corresponding mounting ring. Each nozzle retainer body may also couple to the second end of the corresponding mounting ring and include a plurality of lugs on an inner surface.
Particular implementations of a nozzle mounting assembly may also include a plurality of trim rings wherein each trim ring corresponds to one of the plurality of mounting rings. The trim rings include a lower fitting that slidably couples with the first end of a corresponding mounting ring, and an upper flange that extends outward from the lower fitting and is substantially parallel to the inner pool surface.
In some implementations, the lower fitting of each of the plurality of trim rings is in contact with the nozzle retainer body that corresponds to the mounting ring upon which a particular trim ring is coupled. The upper flange of each of the plurality of trim rings extends across a transition between the inner pool surface and the corresponding mounting ring, and each of the upper flanges is affixed to the inner pool surface with a silicon sealant.
Particular implementations of a nozzle mounting assembly may further include a first plurality of removable construction caps that slidably couple with the first end of one of the plurality of mounting rings. Implementations may still further include a second plurality of removable construction caps that slidably couple with the second end of one of the plurality of mounting rings.
Particular implementations may include the plurality of mounting rings where the at least one protrusion comprises a substantially continuous annular protrusion. Alternately, particular implementations may include the plurality of mounting rings where the at least one protrusion comprises a plurality of protrusions extending outward from the outside wall.
In another aspect, a particular implementation of a nozzle mounting assembly includes a nozzle retainer body with a first body member, a second body member, a recessed channel, and a plurality of lugs. The first body member includes a substantially cylindrical outside surface, a first end with an outside diameter smaller than an inner diameter of a corresponding mounting ring, and a second end. The second body member includes a substantially cylindrical outside surface with an outside diameter smaller than the outside diameter of the first body member. The second body member also couples with and extends from the first body member. The recessed channel is positioned between a first end of the second body member and the second end of the first body member. The plurality of lugs is positioned on an inner surface of the second body member.
Particular implementations may also include a plurality of nozzle retainer bodies wherein the plurality of nozzle retainer bodies is coupled with a plurality of swimming pool cleaning nozzles.
In another aspect, a particular implementation of a nozzle mounting assembly includes a method of installing a nozzle mounting assembly. The method may include one or more of the following steps: Positioning a plurality of mounting rings within a swimming pool casting; forming a swimming pool shell; removing the swimming pool shell from the swimming pool casting and relocating the swimming pool shell to an installation site; aligning the plurality of mounting rings with a plurality of plumbing connections; installing a plurality of nozzle retainer bodies; and installing a plurality of cleaning head mechanisms.
In particular implementations, the method of installing a nozzle mounting assembly may further include inserting a plurality of first removable construction caps into a first end of one of the plurality of mounting rings prior to forming the swimming pool shell. If the method includes the use of the plurality of first removable construction caps, then the method will also include the step of removing the plurality of first removable construction caps from the plurality of mounting rings after forming the swimming pool shell.
Particular implementations may also include the step of inserting a plurality of second removable construction caps into a second end of one of the plurality of mounting rings prior to forming the swimming pool shell. If the method includes the use of the plurality of second removable construction caps, then the method will also include the step of removing the plurality of second removable construction caps from the plurality of mounting rings after forming the swimming pool shell.
Particular implementations may also include the use of a plurality of trim rings. When trim rings are used, the method of installing a nozzle mounting assembly will include installing a plurality of trim rings by coupling the plurality of trim rings with the first end of a plurality of mounting rings.
These and other nozzle mounting assemblies may have one or more of the following advantages depending on which particular implementation and set of components and features is used. It may be easier for the fiberglass applicators to manufacture a swimming pool shell when using the mounting rings as compared with the more traditional fittings for cleaning systems. There may be reduced preparation required to position the mounting rings within a swimming pool casting, which improves the productivity of the applicators. The mounting rings may be formed of a material that is resistant to the heat used to apply and cure the fiberglass resins than the traditional PVC fittings. Improved heat resistance of the ring materials yields a stronger bond with the surrounding fiberglass. A stronger bond may also result in a more leak proof connection than with previous methods and materials. Other materials may have a higher heat deflection point than PVC to better resist warping caused by high temperatures during application and curing of fiberglass resins.
Another advantage of using mounting rings derives from the low profile of the rings compared with conventional elbow fittings. Traditional implementations of mounting systems produce fittings that extend several inches below the surface of the swimming pool shells. These traditional implementations are difficult to stack, which limits the number of shells that can be loaded onto a truck trailer. The lower profile of the mounting rings allows swimming pool shells to be more closely nested during transport on a truck trailer. More swimming pools per truck load decreases the total transportation cost per unit.
The trim ring component of the nozzle mounting assembly helps to minimize the amount of leakage that can occur around cleaning system fittings. The upper flange of the trim rings overlays the pool surface covering the rough transition area between the fiberglass pool gel coat and the mounting ring, and allows for the addition of sealant around the interface between the trim rings and the pool surface. The trim rings further provide the advantage of having a consistent surface to mount nozzles within the assembly thereby setting the height of the nozzle in relation to the interior surface of the pool at a set distance. Traditional implementations of in-floor cleaning nozzles may be difficult to align perpendicular with a swimming pool floor. The use of trim rings may allow for the nozzles to better align with the inside surface of a prefabricated swimming pool shell.
The nozzle retainer body may provide a further advantage of a structural support joint in particular implementations that improve the connection between the nozzle mounting assembly and the adjoining plumbing. Additionally, the design of the nozzle retainer body in particular implementations may improve the displacement of forces produced by the water once a swimming pool is filled. The annular bulge shape and low profile of the mounting ring example provided in
The foregoing and other aspects, implementations, features, and advantages will be apparent to those artisans of ordinary skill in the art from the DESCRIPTION and DRAWINGS, and from the CLAIMS.
Implementations will hereinafter be described in conjunction with the appended DRAWINGS, where like designations denote like elements, and:
a is a cross section of a conventional arrangement of plumbing parts molded into a prefabricated swimming pool shell;
b is a cross section of a first implementation of a nozzle mounting assembly with mounting rings molded into a prefabricated swimming pool shell;
Nozzle mounting assembly implementations are not limited to the specific components or assembly procedures disclosed herein, and may comprise many additional components and assembly procedures known in the art consistent with the intended nozzle mounting assembly. Accordingly, for example, although particular mounting rings, trim rings, and nozzle retainer bodies are disclosed, such mounting rings, trim rings, and nozzle retainer bodies may comprise any shape, size, style, type, model, version, measurement, and/or the like as is known in the art consistent with the intended operation of a nozzle mounting assembly.
There is a variety of possible nozzle mounting assembly implementations. Several example implementations are shown and described with reference to
Conventional nozzle mountings use ABS and PVC, which is not compatible with the fiberglass resin used for swimming pools because they are soft and can melt and deform easily from the heat caused by the chemical process of applying fiberglass resins. As a result, the conventional fiberglass pool manufacturing process involves the additional steps of coating the individual elbow joints by hand with several thin protective layers of fiberglass and resin that are then allowed to cure overnight. By pre-applying several thin layers of fiberglass and resin by hand to the individual elbow joints, the heat applied in this manual process is kept low enough to not deform the fittings. This hardened layer then protects the fittings from the high heat generated during the heavy thicker layers of the complete pool building process before fiberglass is wrapped around the elbow individually.
a illustrates a cross-section of a conventional nozzle mounting assembly in a prefabricated swimming pool shell. Existing assemblies typically require that a plurality of plumbing elbow sections 2 be formed within a prefabricated swimming pool shell. The elbow sections 2 limit the number of swimming pool shells that can be transported on a single tractor trailer.
b illustrates a nozzle mounting assembly implementation incorporating a plurality of mounting rings 4 rather than elbow connectors. The plurality of mounting rings 4 may be placed at predetermined locations along the surface of a prefabricated swimming pool shell 16, and may be molded into the floor, walls, and/or steps of the swimming pool shell 16. Material applicators add fiberglass or other suitable material as known in the applicable art to a swimming pool casting, and form a swimming pool shell 16 around the plurality of mounting rings 4. Mounting rings of varying sizes, shapes and dimensions may be used to match the nozzles used for a particular implementation. As is apparent for comparison with
Alternative implementations may include mounting rings where the at least one protrusion along the outside surface of the mounting ring is not a substantially continuous, annular protrusion, but instead extends at one or more, and even periodic locations on the outside surface of the mounting ring. The at least one protrusion may alternately be comprised of a non-continuous outside surface, a rectangular protrusion, a parabolic protrusion, or other shape as known in the art consistent with the stated purpose of a mounting ring as disclosed herein. The outside surface of the mounting ring may be smooth or textured to increase adhesion of the fiberglass resins, increasing the bond strength and reducing the chance of leaks between the mounting ring and the pool shell.
Whatever the dimensions or shape, the one or more protrusions act to displace the water force that acts upon a nozzle mounting assembly after water is added to a swimming pool. The protrusion(s) key into the fiberglass material and add strength to the joint in the horizontal direction where traditional fittings would rely on a side frictional and chemical bond to hold it in place.
Referring to
In particular implementations, a trim ring 26, such as that shown in
Particular implementations may further comprise a nozzle retainer body 36, such as that shown in
The nozzle retainer body 36 has a first body member 38 and a second body member 46, which may be formed as a single unit or formed separately and subsequently coupled together. The first nozzle retainer body member 38 has a substantially cylindrical outside surface with a first end 40 diameter 43 that is substantially the same size as, or slightly smaller or slightly larger than, an inside diameter 15 of the corresponding mounting ring 4. Other shapes for the inside surface of the mounting ring 4 and outer surface of the first nozzle retainer body member 38, as well as similar components of the second nozzle retainer body member 46 described more below, are contemplated so long as the two are able to mate together, but cylindrical shapes are standard in the plumbing industry. The first end 40 of the first nozzle retainer body member 38 slidably couples with the second end 8 of the corresponding mounting ring 4.
Similarly, the second nozzle retainer body member 46 has a substantially cylindrical outside surface with an outside diameter 53 that is substantially the same size as, or slightly smaller than, or slightly larger than the outside diameter 43 of the first nozzle retainer body member 38. The second nozzle retainer body member 46 is coupled with the first nozzle retainer body member 38 and extends outward from the second end 42 of the first nozzle retainer body member 38. The second nozzle retainer body member 46 is sized to couple with a plumbing fitting 62 as shown in
The second nozzle retainer body member 46 further may include a plurality of nozzle lugs 54 on an inside surface as shown in the cross section of
Although it is not required for all implementations, the second nozzle retainer body member 46 may be joined to the first nozzle retainer body member 38 by an interfacing section 58 that is oriented generally parallel to the corresponding swimming pool shell inner surface 18. The interfacing section 58 is positioned above the second end 42 of the first nozzle retainer body member 38. For the particular implementation shown in
This disclosure, its aspects and implementations, are not limited to the specific components or assembly procedures disclosed herein. Many implementations are possible. For example, other implementations may include nozzle mounting assemblies that are sized for use on swimming pool steps as depicted in
When the plurality of mounting rings is correctly positioned within the casting (step 202), fiberglass or other suitable material as known in the applicable art is sprayed or otherwise applied into the casting and the swimming pool shell is formed (Step 204). The thickness of the swimming pool shell is generally less than the distance from the first end to the second end of the plurality of mounting rings. A sloping envelope of fiberglass is created between the second end of the plurality of mounting rings and the lower surface of the swimming pool shell. The sloping envelope is narrowest adjacent to the second end of the plurality of mounting rings, and increases in diameter as the envelope transitions towards the bottom surface of the swimming pool shell.
In a conventional swimming pool shell manufacturing process, the installer is required to hand-apply a protective layer of fiberglass or other suitable material around a large elbow joint (see
The swimming pool shell then cures within the casting. Once the swimming pool shell has cured, the shell may be removed from the casting and relocated to an installation site (Step 206). The swimming pool shell may be relocated to a warehouse, retail site, or other suitable storage location in transition to the installation site.
If the first and second plurality of removable construction caps were used during the manufacturing process, the caps are then removed from the plurality of mounting rings (Step 208). With the construction caps removed, a plurality of trim rings may be installed (Step 210) by coupling the plurality of trim rings with the corresponding first end of the plurality of mounting rings at the inside surface of the pool shell. The trim rings may be secured to the first end of the plurality of mounting rings using a PVC glue or other adhesive. A silicone sealant may also be applied between the upper flange of the plurality of trim rings and the inner surface of the swimming pool shell. The trim rings create a smooth and finished look for the plurality of nozzle mounting assemblies along the top surface of the swimming pool shell. The trim rings also correct any misalignment that may exist between the first end of the plurality of mounting rings, or the nozzle retainer bodies, and the top surface of the swimming pool shell. The trim rings help to prevent water seepage around the plurality of mounting rings, especially when there is misalignment of some of the plurality of mounting rings.
After the trim rings are installed, a plurality of nozzle retainer bodies, one for each mounting ring, are installed (Step 212) by coupling the plurality of nozzle retainer bodies with the corresponding plurality of mounting rings. The plurality of nozzle retainer bodies couple at a first end with a second end of the plurality of mounting rings. When the nozzle retainer body 36 is inserted into the trim ring 4, the nozzle retainer body 36 may be pressed up flush against the lower annular fitting so that the nozzle retainer body 36 is always aligned with the inner surface of the pool and always at a known distance (set by the height of the lower annular fitting of the trim ring 26). The combination of the mounting ring, the trim ring and the nozzle retainer body significantly simplify the alignment process so that when a nozzle is installed into the nozzle retainer body, the nozzle is properly positioned and aligned in relation to the inner surface of the pool.
The plurality of nozzle retainer bodies can then be coupled to a plurality of plumbing connections (Step 214) at a second end of the plurality of nozzle retainer bodies. The plurality of plumbing connections are typically in place at the swimming pool installation site prior to the pool being placed. The plurality of plumbing connections may be secured to the second end of the plurality of nozzle retainer bodies with PVC glue or other conventional adhesive.
When the components of the nozzle mounting assembly are installed as described, a plurality of cleaning head mechanisms are installed by inserting the plurality of cleaning head mechanisms within the plurality of nozzle retainer bodies (Step 216). The plurality of cleaning head mechanisms may be secured to the plurality of nozzle retainer bodies. Once the plurality of cleaning head mechanisms are installed, the swimming pool is ready to be filled with water and the underground plumbing system can be activated. The plurality of cleaning head mechanisms will engage whenever pressurized water is activated through the plumbing system.
It will be understood that many modifications of structure, arrangement, proportions, materials, and components may be used, which are adapted to specific environments and operative requirements. Accordingly, nozzle mounting assemblies are not limited to the specific components disclosed herein, as virtually any components consistent with the intended operation of a nozzle mounting assembly implementation may be utilized. For example, although particular components for nozzle mounting assembly implementations are disclosed, such components may comprise any shape, size, style, type, model, version, measurement, concentration, material, quantity, and/or the like consistent with the intended operation of a nozzle mounting assembly implementation. Additionally, implementations are not limited to the use of any specific components, provided that the components selected are consistent with the intended operation of a nozzle mounting assembly implementation.
Furthermore, the components defining any particular nozzle mounting assembly implementation may be formed of any of many different types of materials or combinations thereof that can readily be formed into shaped objects, provided that the components selected are consistent with the intended operation of a nozzle mounting assembly implementation. For example, the components may be formed of plastics, thermoplastics, such as fluoropolymers, polycetal, polycarbonate, polyethane, and the like, thermosets, such as polyimide, polyurethane, and the like, plastic resins and/or other like materials commonly found in the industry. Those of ordinary skill in the art will readily be able to select appropriate materials and manufacture these products from the disclosures provided herein.
Some of the components defining a particular nozzle mounting assembly implementation may be manufactured simultaneously and integrally joined with one another, while other components may be purchased pre-manufactured or manufactured separately and then assembled with the integral components. The various implementations may be manufactured using conventional procedures as added to and improved upon through the procedures described herein.
Accordingly, manufacture of these components separately or simultaneously may involve extrusion, vacuum forming, injection molding, blow molding, casting, pressing, bending, hardening, cutting, and/or the like. Components manufactured separately may then be coupled or removably coupled with the other integral components in any manner, such as with adhesive, a silicone bond, a waterproof fastener, wrapping, any combination thereof, and/or the like. Coupling techniques may depend upon, among other considerations, the particular material forming the components.
In places where the description above refers to particular implementations of a nozzle mounting assembly, it should be readily apparent that a number of modifications may be made without departing from the spirit thereof and that these implementations may be applied to other nozzle mounting assemblies. The accompanying claims are intended to cover such modifications as would fall within the true spirit and scope of the disclosure set forth in this document. The presently disclosed implementations are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the disclosure being indicated by the appended claims rather than the foregoing description. All changes that come within the meaning of and range of equivalency of the claims are intended to be embraced therein.
Number | Name | Date | Kind |
---|---|---|---|
6301723 | Goettl | Oct 2001 | B1 |
6367098 | Barnes | Apr 2002 | B1 |
7481377 | Goettl et al. | Jan 2009 | B2 |
7708212 | Conn | May 2010 | B1 |
7819338 | Goettl | Oct 2010 | B1 |