Enclosure mounting pad with support base

Information

  • Patent Grant
  • 6321928
  • Patent Number
    6,321,928
  • Date Filed
    Friday, October 27, 2000
    24 years ago
  • Date Issued
    Tuesday, November 27, 2001
    23 years ago
Abstract
An enclosure installation assembly comprises a support base and a mounting pad adapted to be secured to the support base. The support base, having a lower portion slightly larger than its upper portion, is placed in a hole in the ground. Dirt is compacted around the support base to secure the support base in place. The mounting pad is then secured to the support base using support braces that internally engage the support base and fasteners that engage the mounting pad. Finally, an enclosure is installed on the mounting pad, with fasteners located inside the enclosure. The resulting enclosure is securely and easily installed, and is tamper resistant.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The invention relates generally to enclosures for securely housing a variety of instruments including electrical systems and electronic controls. In particular, the invention relates to an enclosure mounting pad with a support base for simple and secure installation of enclosures.




2. Description of Related Technology




Enclosures are used by irrigation, plumbing and electrical industry professionals to mount and protect electronic controls as well as backflow prevention devices. These enclosures are often located in an easily accessible, outdoor location. Typically, such electronic controls are located inside a metal box-like structure that securely encloses the controls along with a locking door for access. The enclosures are sometimes large enough to house not only the controls, but also other items such as tools.




The enclosures are located above ground, usually placed on either a grassy or a dirt surface. Thus, vandals and thieves are able to easily uproot the enclosure from the ground and damage, steal or abuse the contents of the enclosure. To solve this problem, a concrete slab is formed on the ground, attached to a support base, and the enclosure is then installed on the concrete slab. However, this solution requires that the ground first be prepared and equipment be obtained for the pouring of concrete at the site. Alternatively, the concrete slab is preformed for installation at the site, requiring highly precise preforming to fit the particular site and the particular enclosure, and heavy equipment to transfer and install the slab at the site.




In come cases, fiberglass mounts are also used. These fiberglass mounts, while lighter and easier to install, also deteriorate upon exposure to ultraviolet (UV) radiation and are easily tampered with.




The concrete slab or fiberglass mount are typically secured to a support base using bolts or similar attachment means. The bolts securing the mount are located above ground and outside the enclosure, where they are exposed to the elements and easily accessed by vandals.




Thus, there is a need for an enclosure support that provides for a simple, yet secure, installation of the enclosure that is vandal-resistant.




SUMMARY OF THE INVENTION




Disclosed herein is an enclosure mounting assembly, and a method of installing the assembly. The invention provides for a secure installation of the enclosure, which is weather-proof, prevents corrosion, and is resistant to vandals and thieves.




In one embodiment, the enclosure mounting assembly comprises a support base having a bottom, a top and a substantially hollow interior, and a mounting pad resting on top of the support base. The mounting pad has an opening in its substantially flat top surface. At least one support brace is used to clamp an upper portion of the support base between the support brace and said mounting pad, thus securing the parts together.




Preferably, the support base has a rectangular footprint, and is made of plastic. The mounting pad is preferably made of metal, and more preferably, marine-grade aluminum. It is preferred that the mounting pad is a rectangular plate.




The assembly can further comprise a fastener for securing the support brace, support base and mounting pad together. The fastener is preferably a nut and bolt assembly. The mounting pad can include a hole in its top surface for receiving the fastener.




In a preferred embodiment, strengthening flanges are located on the support base to provide extra support. The support base bears the weight of the mounting pad, which rests on a top edge of the support base. The support base preferably includes a ledge located on an upper interior surface; the support brace is secured beneath the ledge. The support brace preferably has a U-shaped cross-section.




In another embodiment of the invention, there is disclosed a method of securely installing an enclosure mounting pad on an area of ground. The method comprises digging a hole in the ground to accommodate the support base; inserting the support base in the hole, the support base having a top, a bottom and an interior; placing a mounting pad on top of the support base, the mounting pad having an opening in a top surface; and clamping an upper portion of the support base between a support brace and the mounting pad.




In a preferred embodiment, the method also includes mounting an enclosure on top of the mounting pad, and securing it in place using a fastener. Advantageously, the fastener is located in the interior of the enclosure. The fastener is inserted through a hole provided in the support brace and a hole provided in the mounting pad to secure the support brace, support base and mounting pad together.




To provide for additional security and to minimize rodent and moisture problems, the interior of the support base can be filled with a filler, and the hole can be backfilled after inserting the support base.




In yet another embodiment of the invention, there is provided an enclosure assembly. The assembly comprises a support base having a bottom, a top and a hollow interior; a mounting pad resting on top of the support base, the mounting pad having an opening in a top surface; at least one support brace clamping an upper portion of the support base between the support brace and the mounting pad; and an enclosure having a base mounted on the top surface of the mounting pad, the enclosure having an opening in the base sized so as to surround the opening in the top surface of the mounting pad.




Preferably, at least one fastener is used to secure the support brace, the support base, the mounting pad and the enclosure together. The fastener is advantageously located in an interior of the enclosure, which is preferably a metal cabinet. The mounting pad and the enclosure each have at least one hole therein for receiving the fastener. The fastener is preferably a nut and bolt assembly.




If desired, the mounting pad can include a plurality of openings in its top surface, to accommodate more than one enclosure. The support base is preferably made of plastic, while the mounting pad is preferably made of metal, and more preferably, marine-grade aluminum.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a support base for an enclosure according to one embodiment of the invention.





FIG. 2

is a perspective view of a mounting pad for an enclosure for use with the support base of FIG.


1


.





FIG. 3

is a partially cut-away view of a secure enclosure support system that includes the support base of FIG.


1


and the mounting pad of FIG.


2


.





FIG. 4

is an exploded view of an enclosure support system using the support base of FIG.


1


and the mounting pad of FIG.


2


.





FIG. 5

is cross-sectional view of the enclosure support system of FIG.


3


.





FIG. 6

is a cross-sectional view of the enclosure support system of FIG.


3


.





FIG. 7

is an exploded view of another embodiment of an enclosure support system according to the present invention.











DETAILED DESCRIPTION OF THE INVENTION




Reference is now made to the drawings wherein like numerals refer to like parts throughout.





FIG. 1

illustrates one embodiment of a support base


100


for use in a system for supporting and installing enclosures. A preferred support base of the type described below is commercially available from Associated Plastics, Riverside, Calif. As illustrated, the support base


100


is made of several tiers of rectangular-shaped frames


115


, stacked upon one another. The size of the frames


115


gradually decreases from bottom to top of the support base


100


. The support base


100


is preferably made of a heavy-duty plastic, but may also be formed of fiberglass, metal or any other suitable material. While the support base


100


as illustrated in the figures has several tiers, it is not essential that the support base


100


be so formed. Any support that is larger at its base than at its top and is capable of supporting the weight of the enclosure and mounting pad can be used. It is to be understood that the tiered support is for illustrative purposes only.




The support base


100


preferably has an open bottom (not shown in

FIG. 1

) and an open top


105


and is hollow throughout. The support base


100


has four side surfaces


190


forming the sides of a rectangular box, and a base


110


. The base


110


is the largest of the tiers and forms a relatively large rectangular shape that forms the bottom of the four side surfaces


190


of the rectangular box. The support base


100


is designed to support the mounting pad and the enclosure. Strengthening flanges


140


can be provided at the base


110


to provide additional strength, allowing the support base


100


to support the mounting pad and the enclosure.




As shown in the drawing, The first frame


115


is located above the base


110


. The first frame


115


has a rectangular footprint that is smaller than that of the base


110


. Thus, the footprint of the first frame


115


is a rectangle located inside another rectangle representing the footprint of the base layer


110


. Similarly, a second and a third frame


115


are provided above the first frame


115


, each having a successively smaller rectangular footprint. Each frame


115


has its rectangular footprint within the rectangular footprint of the preceding frame


115


. The height of each of the frames may be designed to provide a desired height for the support base


100


, the height being selected to provide sufficient stability when the support base


100


is installed. This configuration provides the support base


100


with a somewhat conical profile. According to the embodiment illustrated in

FIG. 1

, each side surface


190


is provided with three vertical portions


115


. However, it is understood that any number of vertical portions


115


can be used to form the side surfaces


190


. Alternatively, the side surfaces


190


can be continuous smooth surfaces forming a truncated pyramidal shape. Additionally, it is understood that the support base


100


need not be of a rectangular shape; various shapes can be used, including but not limited to any polygonal cone or a purely circular cone.




Preferably, strengthening flanges


140


are provided on the inside and/or outside surface of the support base


100


. The flanges


140


run substantially vertically along the side surfaces


140


of the support base


100


. The flanges


140


provide support for the vertical portions


115


of the four side surfaces


190


.




A ledge


195


is located on the interior surface of the support base


100


, near the top edge


120


. The top edge


120


is preferably of a substantially rectangular shape. The top edge


120


of the uppermost vertical portion


115


serves as a resting surface for a mounting pad. One embodiment of a mounting pad


200


is illustrated in FIG.


2


and will be described here with reference to FIG.


2


.




The mounting pad


200


is a substantially rectangular plate with a flat top surface


210


. The mounting pad


200


is preferably made of a metallic material such as steel or aluminum or a UV-stabilized plastic. A preferred embodiment of the mounting pad


200


is made from {fraction (3/16)}-inch thick, marine-grade aluminum. Aluminum is preferred, as it provides several advantages over other materials. It has the ability to provide protection against lightening strikes, thereby preventing damage to the enclosure and its contents. Additionally, marine-grade aluminum provides increased resistance to corrosion. In areas where lightening strikes are not a concern, UV-stabilized plastic can be used, thereby reducing costs of manufacture.




The mounting pad


200


is provided with an edging


220


that is formed perpendicular to the plane of the top surface


210


. An opening


240


is provided near the center of the top surface


210


of the mounting pad


200


. The opening


240


is sized so as to fit within the base of the enclosure


300


(see FIG.


6


). Multiple openings can be provided, if desired, to accommodate multiple enclosures (see FIG.


7


). In addition, the size and shape of the opening


240


may be varied to meet specific needs. The opening


240


in the mounting pad


200


should be sized to allow passage of the pipes, cables


310


, and the like from the interior of the enclosure


300


into the ground below (see FIG.


3


).




One or more holes


250


are provided on the top surface


210


of the mounting pad


200


around the opening


240


. These holes


250


are adapted to receive fasteners, such as bolts or screws, used to secure the enclosure to the mounting pad


200


and the support base


100


. Preferably, the through holes


250


are provided with rubber grommets (not shown) to keep the fasteners in place during the installation process.





FIGS. 3-6

illustrate the engagement of the support base


100


, the mounting pad


200


and an enclosure


300


.

FIG. 3

illustrates the support system and the enclosure installed. Prior to installation, a hole roughly the shape of and slightly larger than the size of support base


100


is dug in the ground to accommodate the support base


100


. The location of the hole can be determined by the location of the pipes and cables


310


used, for example, to provide controls for a landscaping irrigation system. Once the hole is dug, the support base


100


is inserted into the hole. Preferably, approximately three inches of the support base


100


are left above ground to facilitate installation of the mounting pad


200


. The inside of the support base


100


is then preferably filled with pea gravel or other filler to minimize rodent and moisture problems. Alternatively, the pea gravel can be added after the installation of the enclosure. This allows for the movement of the pipes and cables


310


during installation. Once the support base


100


is in position, dirt is backfilled and compacted around the outside of the support base


100


. This secures the support base


100


in its location.




The mounting pad


200


is then placed on top of the support base


100


. Support braces or clamps


340


are used to secure the support base


100


to the mounting pad


200


. As more clearly shown in

FIG. 4

, the support braces


340


are elongated metal braces, having a U-shaped cross-section. The braces


340


are provided with at least one hole to accommodate fasteners, such as bolts


320


. Alternatively, the bolts


320


may be permanently affixed to the support braces


340


. All mounting hardware is preferably made of stainless steel to prevent corrosion and rust. As can be seen from

FIG. 5

, the length of the support braces


340


is sufficient to allow the support braces


340


to span the width of the support base


100


and engage an interior ledge


195


of the support base


100


. The interior ledge


195


preferably spans the length of two opposing sides of the support base


100


and is located near the top opening


105


of the support base


100


. Preferably, the support braces


340


are installed with the open side of the U-shape contacting the interior ledge


195


, as shown in FIG.


4


.




The mounting pad


200


is secured to the support base


100


by inserting the fasteners


320


through the holes


250


in the mounting pad


200


. Thus, the support braces


340


clamp the interior ledge


195


of the support base


100


between the support brace


340


and the mounting pad


200


. The fasteners


320


extend through the holes


250


in the mounting pad


200


. The fasteners


320


and, consequently, the support braces


340


are temporarily held in place by the rubber grommets provided around the holes


250


of the mounting pad


200


.




As illustrated in

FIG. 6

, the enclosure


300


is then mounted on the mounting pad


200


. The enclosure


300


is preferably a metal cabinet with a locking door


330


(see FIG.


3


). The enclosure


300


is secured to the mounting pad


200


with the fasteners


320


. The bolts


320


, already inserted through the holes


250


in the mounting pad


200


, are positioned in the corresponding holes provided in the base of


390


of the enclosure


300


, extending into the interior of the enclosure


300


. Nuts


350


are used to secure the bolts


320


in place. The support braces


340


, support base


100


, mounting pad


200


and the enclosure


300


are thereby secured together. The fasteners


320


are advantageously located inside the enclosure


300


, preventing vandals from removing them and accessing or removing the enclosure


300


.




As illustrated in

FIG. 7

, the support base


100


and the mounting pad


200


may be designed to support two or more enclosures. For example, the mounting pad


200


can be provided with two openings


240




a,




240




b


each with a set of through holes


250


. Each opening


240




a,




240




b


in the mounting pad


200


can be accompanied with a set of support braces


340


and interior ledges


195


in the support base


100


. Thus, each opening


240


can accommodate a separate enclosure.




Advantageously, the mounting pad


200


can be provided in a variety of colors adapted to satisfy the varying needs. For example, the mounting pad


200


may be provided in green to match the color of a grassy landscape. Other colors may be used, for example, with desert landscapes.




Thus, the invention provides a secure installation of an enclosure without the need for special preparation of the ground for pouring of concrete. Additionally, the mounting pad is easily manufactured to accommodate a wide variety of support bases and enclosures. Further, the use of the support braces to secure the components of the system eliminates the need for high-precision manufacturing. The installation is made secure by preventing unauthorized access to the mounting hardware.




While the above detailed description has shown, described, and pointed out novel features of the invention as applied to various embodiments, it will be understood that various omissions, substitutions, and changes in the form and details of the device illustrated may be made by those skilled in the art without departing from the spirit of the invention.



Claims
  • 1. An enclosure mounting assembly, comprising:a support base having a bottom, a top, and a substantially hollow interior; a mounting pad resting on said top of said support base, said mounting pad having an opening in a substantially flat top surface; and at least two support braces each having at least one fastener for clamping an upper portion of said support base between said support brace and said mounting pad; wherein each of said at least two support braces clamps said upper portion of said support base in at least two locations.
  • 2. The assembly of claim 1, wherein said support base has a rectangular footprint.
  • 3. The assembly of claim 1, wherein said support base is made of plastic.
  • 4. The assembly of claim 1, wherein said mounting pad is made of metal.
  • 5. The assembly of claim 1, wherein said mounting pad is made of marine-grade aluminum.
  • 6. The assembly of claim 1, wherein the mounting pad is made of UV-stabilized plastic.
  • 7. The assembly of claim 1, wherein said mounting pad is a rectangular plate.
  • 8. The assembly of claim 1, wherein said at least one fastener is located in the substantially hollow interior of the support base.
  • 9. The assembly of claim 8, wherein said fastener is a nut and bolt assembly.
  • 10. The assembly of claim 8, wherein said mounting pad further comprises a hole in said top surface for receiving said fastener.
  • 11. The assembly of claim 1, further comprising strengthening flanges located on said support base.
  • 12. The assembly of claim 1, wherein the mounting pad rests on a top edge of said support base.
  • 13. The assembly of claim 1, wherein said support brace has a U-shaped cross-section.
  • 14. The assembly of claim 1, wherein said support base further comprises a ledge located on an upper interior surface, wherein said support brace is secured beneath said ledge.
  • 15. The assembly of claim 1, wherein said mounting pad has a plurality of openings in its top surface.
  • 16. An enclosure assembly, comprising:a support base having a bottom, a top, and a hollow interior; a mounting pad resting on said top of said support base, said mounting pad having an opening in a top surface; and at least two support braces having at least one fastener for clamping an upper portion of said support base between said support brace and said mounting pad, wherein each of said at least two support braces clamps said upper portion of said support base in at least two locations; and an enclosure having a base mounted on said top surface of said mounting pad, said enclosure having an opening in said base sized so as to surround said opening in said top surface of said mounting pad.
  • 17. The assembly of claim 16, wherein said at least one fastener is located in said interior of said enclosure and secures said support base top, said top surface of said mounting pad and said support brace together.
  • 18. The assembly of claim 16, wherein said enclosure is a metal cabinet.
  • 19. The assembly of claim 17, wherein the mounting pad and the enclosure have at least one hole therein for receiving said fastener.
  • 20. The assembly of claim 16, wherein said mounting pad has a plurality of openings in its top surface.
  • 21. The assembly of claim 16, wherein the fastener is a nut and bolt assembly.
  • 22. The assembly of claim 16, wherein said support base is made of plastic.
  • 23. The assembly of claim 16, wherein said mounting pad is made of metal.
  • 24. The assembly of claim 16, wherein said mounting pad is made of marine-grade aluminum.
  • 25. The assembly of claim 16, wherein the mounting pad rests on a top edge of said support base.
  • 26. The assembly of claim 16, wherein said support brace has a U-shaped cross-section.
  • 27. The assembly of claim 16, wherein said support base further comprises a ledge located on an upper interior surface, wherein said support brace is secured beneath said ledge.
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Entry
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