Abstract:
The present invention relates generally to panels or enclosures. More particularly, the invention encompasses a removable knockout plate for enclosures. The present invention is also directed to a novel electrical panel or enclosure where at least a portion of at least one removable plate or panel is removably attached to a frame. The removable plate can be removed and can be cut at desired locations to create holes or openings for electrical components. The removable panel or plate can be a blank plate where at least one opening is created, as needed, or the removable panel can have at least one knockout which can be removed from the removable panel or plate, as needed.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    The instant patent application is a Continuation-In-Part of pending U.S. patent application Ser. No. 12/731,641, filed on Mar. 25, 2010, titled “Removable Knockout Plate For Enclosures,” the entire disclosure of which pending patent application is incorporated herein by reference, and which patent application claimed priority to and the benefit of U.S. Provisional Patent Application Ser. No. 61/164,596, filed on Mar. 30, 2009, titled “Removable Knockout Plate For Enclosures,” the entire disclosure of which provisional application is incorporated herein by reference. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The present invention relates generally to panels or enclosures. More particularly, the invention encompasses a removable knockout plate for enclosures. The present invention is also directed to a novel electrical panel or enclosure where at least a portion of at least one removable plate or panel is removably attached to a frame. The removable plate can be removed and can be cut at desired locations to create holes or openings for electrical components. The removable panel or plate can be a blank plate where at least one opening is created, as needed, or the removable panel can have at least one knockout which can be removed from the removable panel or plate, as needed. 
       BACKGROUND INFORMATION 
       [0003]    Contractors/electricians/installers spend hours to knockout holes in an enclosure and then they spend time feeding wire(s) through the holes. This becomes a big problem, especially when dealing with larger size wires, when 3 or 4 electricians have to work together coordinating to feed all wires into the knockout holes. This problem increases, for example, when installing a 3 phase 4 wire modular multi-position metering system. This is due to the fact that enclosures are of a compact size, and with the large amount of wires, it may take one electrician to hold the enclosure in position, one electrician to pull the wire out of the conduit hole, one electrician to hold wires on the other side of die wall to lead the wires straight in, and another electrician who from behind has to push and bend the wire(s). As one can appreciate now that the installation of modular multi-position metering system is very labor intensive, and time consuming. Therefore, there is a need for improvement in electrical panels or enclosures, especially for accommodating electrical components, such as, electrical wires, electrical conduits, to name a few. 
         [0004]    U.S. Pat. No. 4,679,867 (Stanley W. Heldenbrand, et al.), the entire disclosure of which is incorporated herein by reference, discloses a cabinet for an electronic apparatus which includes a shelf of removable electronic circuit modules being interconnected by a back plane structure, the cabinet including side walls for supporting the shelf and a rear closure wall detachably fixed to rear edges of the side walls. Connector panels each diagonally straddle rear interior corners at junctions of the rear wall and the side walls to define vertical cable channels. An interconnect cavity behind the back plane structure is defined by a central portion of the rear wall between the connector panels and is limited by upper and lower closure panels at upper and lower ends of the connector panels. Edges of the upper and lower closure panels and the connector panels define a port for convenient physical access to the interconnect cavity when the rear wall is removed. Cable spans between the back plane structure and the connector panels are inherently direct and short, thereby minimizing potential EMI radiation such that feedthrough capacitance of connectors in the connector panel is likewise advantageously minimized. 
         [0005]    U.S. Pat. No. 6,362,423 (Randall Wise, et al.), the entire disclosure of which is incorporated herein by reference, discloses a planar member for use in a support structure, the planar member includes a plurality of apertures which are positioned to align with a set of openings in a wall of the support structure, the set of openings corresponding to a predetermined configuration of electrical components to be installed into the support structure. The number of openings in the wall are larger than the plurality of apertures in the planar member. 
         [0006]    U.S. Pat. No. 6,751,913 (John R. Marrotte, et al.), the entire disclosure of which is incorporated herein by reference, discloses a wall structure includes at least two studs that are designed to support panels front and back, and end caps or raceway channel defining members on the leading and trailing edges of the panel wall structure. Each of the studs includes sets of oppositely arranged flanges that in turn cooperate with marginal edges of both the panels and the raceway defining members. Cross bracing is provided to allow wiring either within the enclosed space between the panels, or more preferably in the wireways defined in the raceway members so that the power and data communication conductors can be isolated from one another. The feature of the panel structure is that the panels themselves can support light fixtures or other lightweight electrical devices, and heavier electrical devices or units can be accommodated from the cross bracing or from shelves secured to the cross bracing and to the studs. Knockout openings in the studs and in the cross bracing provides for convenience in wiring and in mounting of electrical devices generally. 
         [0007]    U.S. Pat. No. 6,838,616 (Michael B. Harrison, et al.), the entire disclosure of which is incorporated herein by reference, where an enclosure is disclosed which is highly secure, permits access to a cabled network system only by one user at a time, permits visual and unequivocal observation of the security status of the enclosure, and prevents access to the interior thereof only by authorized persons. The enclosure has back, front and side walls and an interior, with all connections being internal. Limited interior access is provided only through a door and a service opening. Within the enclosure is a system connection device to the system, which is configured for access thereto by only a single user at a time. A lock secures door closure. Thus access to the cabled system through the enclosure is available only to one user at a time and must be obtained through the open door, with usage thereby being visually identifiable, and the door prevents unauthorized access. 
         [0008]    U.S. Pat. No. 7,286,339 (William C. Baca), the entire disclosure of which is incorporated herein by reference, discloses an underground combination service entrance apparatus for temporary and permanent service comprising two enclosures. A utility enclosure contains a meter socket and the second enclosure contains a breaker panel. The breaker panel on the customer side and the meter on the utility side meet NEC requirements and the local utility company regulations. An optional section in the utility enclosure provides a raceway space for routing wiring. Knockout holes are provided on the utility enclosure for installation of a hub for running wires to and from the service apparatus. The enclosures can be semi-flushed mounted. The two enclosures are isolated from each other, fastened together, and mounted on a wall. A removable hood is provided to weatherproof the customer enclosure for temporary use. 
         [0009]    U.S. Pat. No. 7,706,135 (Jeffrey O. Sharp, et al.), the entire disclosure of which is incorporated herein by reference, discloses a load center enclosure with displaceable end wall plates for easily accessing the wall cavity above and below the load center and adding additional electrical conductors in post installation applications. 
         [0010]    However, this invention improves on the deficiencies of the prior art and provides an inventive removable knockout plate for enclosures. 
       PURPOSES AND SUMMARY OF THE INVENTION 
       [0011]    The invention is a novel removable knockout plate for enclosures. 
         [0012]    Therefore, one purpose of this invention is to provide a removable knockout plate for enclosures. 
         [0013]    Another purpose of this invention is to provide at least one removable knockout plate for an electrical panel or enclosure which can be removed in the field and where at least one opening can be created in the removable knockout plate, and where the removable knockout plate with at least one opening is then secured to the frame of the panel or enclosure. 
         [0014]    Yet another purpose of this invention is to provide a removable knockout panel or plate having at least one knockout, and where the knockout can be removed when desired. 
         [0015]    Still yet another purpose of this invention is to provide a removable panel or plate, where the removable panel or plate is a blank panel or plate, and where one or more openings can be created in the removable panel or plate when desired. 
         [0016]    Therefore, in one aspect this invention comprises an electrical apparatus comprising: 
         [0000]    (a) an enclosure, said enclosure having a back panel, a first side panel, a second side panel, a top end panel, a bottom end panel, and wherein each of said panels are secured to each other to form said enclosure;
 
(b) at least one of said panel having at least one opening to securely engageably and removably accommodate at least one removable knockout plate, and wherein said at least one removable knockout plate substantially covers said at least one opening in said at least one panel of said enclosure; and
 
(c) wherein said at least one removable knockout plate comprises of at least one first knockout, and wherein said at least one first knockout further contains at least one second knockout, and wherein said second knockout is engageably and removably secured to said first knockout.
 
         [0017]    In another aspect this invention comprises an electrical apparatus comprising: 
         [0000]    (a) an enclosure, said enclosure having a back panel, a first side panel, a second side panel, a top end panel, a bottom end panel, and wherein each of said panels are secured to each other to form said enclosure;
 
(b) at least one of said panel having at least one opening to securely engageably and removably accommodate at least one removable knockout plate, and wherein said at least one removable knockout plate substantially covers said at least one opening in said at least one panel of said enclosure;
 
(c) wherein said at least one removable knockout plate comprises of at least one first knockout, and wherein said at least one first knockout is directly interconnected with at least one second knockout, and wherein said second knockout is engageably and removably secured to said first knockout; and
 
(d) at least one means for securing said at least one removable knockout plate with said at least one first knockout and said at least one second knockout, such that said at least one removable knockout plate substantially covers said at least one opening in said at least one panel of said enclosure.
 
         [0018]    In yet another aspect this invention comprises an electrical apparatus comprising: 
         [0000]    (a) an enclosure, said enclosure having a back panel, a first side panel, a second side panel, a top end panel, a bottom end panel, and wherein each of said panels are secured to each other to form said enclosure;
 
(b) at least one of said panel having at least one opening to securely engageably and removably accommodate at least one removable knockout plate, and wherein said at least one removable knockout plate substantially covers said at least one opening in said at least one panel of said enclosure;
 
(c) wherein said at least one removable knockout plate comprises of at least one first knockout, and wherein said at least one first knockout is directly interconnected with at least one second knockout, and wherein said second knockout is engageably and removably secured to said first knockout;
 
(d) at least one means for securing said at least one removable knockout plate with said at least one first knockout and said at least one second knockout, such that said at least one removable knockout plate substantially covers said at least one opening in said at least one panel of said enclosure; and
 
(e) upon removal of one of said at least one first knockout or said at least one second knockout creates a permanent opening is said at least one removable knockout plate.
 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0019]    Although the scope of the present invention is much broader than any particular embodiment, a detailed description of the preferred embodiment follows together with drawings. These drawings are for illustration purposes only and are not drawn to scale. Like numbers represent like features and components in the drawings. The invention may best be understood by reference to the ensuing detailed description in conjunction with the drawings in which: 
           [0020]      FIG. 1 , illustrates a perspective view of a first embodiment of an inventive electrical panel or enclosure of this invention. 
           [0021]      FIG. 2 , illustrates an exploded view of the inventive electrical panel or enclosure of the invention illustrated in  FIG. 1 . 
           [0022]      FIG. 3 , illustrates a top view of an inventive removable knockout plate of this invention. 
           [0023]      FIG. 4 , illustrates a perspective view of a second embodiment of an inventive electrical panel or enclosure of this invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0024]    This invention provides a convenient provision of a removable knockout plate for an electrical panel or enclosure to flexibly fit the incoming or outgoing wire conduits. This invention also provides the convenience of removing the knockout plate, and the knocking out to proper size conduit for the enclosure. Alternatively, a blank removable plate provides even more flexibility for creating an opening for an enclosure. With this invention one can make conduit openings of any size, at anywhere on the removable plate, so as to fit the installation requirements. This invention will reduce hours of wiring time from regular installation. 
         [0025]    It is we known in the art that most commonly in electrical rooms the back wall is usually utilized for exiting the wires so as to ensure clean and neat overall setup. The removable knockout plate of this invention provides a much larger opening (when knockout plate is removed) for installers or contractors to feed wires through. The electrician or installers can also regroup wires in front of the enclosure and cut out knockout holes at designated location(s), and then slide the removable knockout plate with all the wires, now installed, through the designated holes. As one can now appreciate that with this invention only one electrician can do all the wiring on an enclosure with removable knockout plate, and in much less time, when compared to the prior art method where 3 or more electricians were needed when wiring an enclosure without the inventive removable knockout plate. 
         [0026]    The removable knockout plate of this invention also alleviates the need for measuring and transposing conduit profiles on a fixed blank wall. This invention also eliminates the time spent awkwardly aligning conduit to a wall with pre-cut knockouts. Furthermore, this invention also allows contractors/electricians/installers to remove the knock-out plate, and then directly transpose conduit profiles after the panel has been hung or mounted onto the wall or similar surface. Cutting the required hole or openings for a conduit, such as, a wire conduit, using this invention is an easier and much more efficient method. 
         [0027]    The removable knockout plate of this invention provides a convenient method of passing incoming or outgoing wire conduits through the back of an electrical panel or enclosure. This also allows installing the electrical panel or enclosure before creating the openings, and handling a small knockout plate or panel instead of the entire electrical panel or enclosure when adding openings. 
         [0028]    This invention, as stated earlier, comprises of at least one removable knockout plate that can be removed before or after installing an electrical panel or enclosure onto the wall. Removing the knockout plate provides a convenient method for the contractor/electrician/installer to create openings of any size and location required for conduits used white wiring the electrical panel or enclosure. The removable knockout plate can either be blank or consist of knockouts (pre-defined weakened area in a panel used in the industry to create openings as needed) that the contractor/electrician/installer can remove, as needed. This invention will reduce hours of wiring time from an electrical panel or enclosure installation. 
         [0029]      FIG. 1 , illustrates a perspective view of a first embodiment of an inventive electrical panel or enclosure  23 , of this invention. The electrical panel or enclosure or apparatus  23 , comprises of a wrapper  50 , having a base or bottom frame or panel or wall  14 , a top or upper frame or panel or wall  24 , a top endwall or panel or wall  20 , and a bottom endwall or panel or wall  10 . The base frame  14 , comprises of a bottom front frame or panel or wall  16 , a bottom first side frame or panel or wall  17 , a bottom rear frame or panel or wall  18 , and a bottom second side frame or panel or wall  19 . The wrapper  50 , typically comprises of a first side panel or wall  40 , having a bottom side edge  37 , and a top side edge  47 , a primary or front or rear or back panel or wall  30 , comprising a bottom rear edge  38 , and a top rear edge  48 , and a second side panel or wall  60 , having a bottom side edge  39 , and a top side edge  49 . For some applications the wrapper  50 , may have a secondary or front panel or front door or back panel or back door (not shown). The top or upper frame or panel or wall  24 , comprises of a top front frame or panel or wall  26 , a top first side frame or panel or wall  27 , a top rear or back frame or panel or wall  28 , and a top second side frame or panel or wall  29 . The bottom frame  14 , is permanently secured to the wrapper  50 , such that the bottom side edge  37 , is secured to the bottom side frame  17 , the bottom back edge  38 , is secured to bottom back frame  18 , and that the bottom side edge  39 , is secured to the bottom side frame  19 . Similarly, the top frame  24 , is permanently secured to the wrapper  50 , such that the top side edge  47 , is secured to the top side frame  27 , the top back edge  48 , is secured to top back frame  28 , and that the top side edge  49 , is secured to the top side frame  29 . At least one removable panel or plate  35 , is secured to at least one wall of the enclosure  23 . For the purposes of illustration the removable plate  35 , having at least one knockout  58 , is secured to the primary or front or rear or back panel  30 , of the enclosure  23 , as it depends upon the orientation of the wrapper  50 . However, the plate  35 , could be a blank panel or plate  35 . In a typical installation one would pass incoming or outgoing wire conduits (not shown) through the openings  78  (shown in  FIGS. 3 and 4 ) in the removable knockout plate  35 , of the inventive electrical panel or enclosure  23 . For the ease of understanding the other electrical and mechanical components of the inventive electrical panel or enclosure  23 , are not shown. 
         [0030]    For the purposes of illustration the enclosure  23 , shown in  FIG. 1 , could be, for example, a 4 meter position modular metering enclosure  23 . The multi-position modular metering enclosure  23 , could include a meter section  42 , and a tenant section  45 . The two sections  42 ,  45 , are enclosed by the enclosure  23 , having a bottom endwall  10 , a top endwall  20 , and a wrapper  50 . Due to the application of multi-position modular metering  23 , line electrical power is fed through crossing buses  46 , to the meter section  42 . The riser buses  48 , connect the crossing buses  46 , to distribute electrical power to individual meter socket  44 . A watt-hour meter (not shown) provided by a utility bridges the meter socket line and load to designated load tenant when the enclosure  23 , is energized. AU tenants in the tenant section  45 , are connected to residential panels via load wires running through the removable knockout plate  35 , into the walls. 
         [0031]      FIG. 2 , illustrates an exploded view of the inventive electrical panel or enclosure  23 , of the invention illustrated in  FIG. 1 .  FIG. 2 , clearly shows the removable knockout plate  35 , from the enclosure or wrapper  50 . The removable knockout plate  35 , can be a blank plate  35 , when it is initially assembled. However, the removable knockout plate  35 , can have one or more specific sized knockout clusters  58 . The removable knockout plate  35 , can be removed or assembled to the primary or back panel  30 , of the wrapper  50 , with the use of hardware or securing means  36 . The hardware or securing means  36 , can be selected from a group comprising, screws, nuts, bolts, welds, to name a few. The removable knockout plate  35 , has at least one opening or location  34 , to secure the removable knockout plate  35 , to the back panel  30 , via at least one securing means  36 . The back panel  30 , has at least one opening or location  32 , to secure the removable knockout plate  35 , to the back panel  30 , via at least one securing means  36 . Thus, the removable knockout plate  35 , is a removable panel or plate  35 , from the inventive electrical panel or enclosure  23 . As one can see that the back panel  30 , has at least one opening or cutoff  55 , which opening or cutoff  55 , is covered when the removable knockout plate  35 , is secured to the back panel  30 , using at least one securing means  36 . It is preferred that the back panel  30 , has at least one hole or location  32 , which mates with or corresponds with at least one hole or location  34 , on the removable knockout panel  35 , so that the securing means  36 , uses locations  32 , and  34 , to secure the removable knockout panel  35 , to the back panel  30 . 
         [0032]    As stated earlier  FIG. 2 , shows an exploded view of a removable knockout plate  35 , and a cutoff  55 , on the primary or back panel  30 , of the electrical enclosure or apparatus  23 . The removable knockout plate  35 , can have a plurality of specific sized knockout clusters  58 , or a blank plate  35 , with at least one mounting hole or location  34 . On the back of the wrapper  50 , a maximal sized cutoff  55 , with at least one mounting provision  32 , fits the removable knockout plate  35 . Fastening means  36 , such as, screws  36 , securely attach the removable knockout plate  35 , onto the back panel  30 , of the wrapper  50 , at the designated locations so as to cover the opening or cutoff  55 . 
         [0033]      FIG. 3 , illustrates a top view of an inventive removable knockout plate  75 , of this invention. The removable knockout plate  75 , is similar to the removable knockout plate  35 , however, the removable knockout plate  75 , has either at least one knockout  58 , or at least one hole or opening  78 . The removable knockout plate  75 , could have at least one opening or location  34 , for securing the removable knockout plate  75 , to the primary or back panel  30 , of the inventive electrical panel or enclosure  23 , using at least one securing means  36 . The knockout  58 , could comprise of one or more knockouts, such as, knockout  71 ,  72 ,  73 ,  74 , having a weakened outline  81 ,  82 ,  83 ,  84 , respectively. The knockouts  71 ,  72 ,  73 ,  74 , could also have one or more perforations or tabs  91 ,  92 ,  93 ,  94 , respectively, along, the weakened outline  81 ,  82 ,  83 ,  84 , respectively. This concept of a knockout within a knockout allows an operator or installer to select the opening that is desired and remove each knockout as desired or needed for the application. Additionally, having one or more perforations or tabs  91 ,  92 ,  93 ,  94 , along the knockout outline or weakened area, allows an installer to easily pop-out a knockout from the removable knockout panel  35 ,  75 , without the use of specialized tools. 
         [0034]      FIG. 4 , illustrates a perspective view of a second embodiment of an inventive electrical panel or enclosure  53 , of this invention. The electrical panel or enclosure  53 , is similar to the enclosure  23 , however it has at least one removable knockout plate  75 , secured to a back panel  30 , in the area of the cutoff or opening  55 . The removable knockout plate  75 , could have at least one knockout  58 , or at least one hole or opening  78 . However, the removable knockout plate  75 , could be similar to removable knockout plate  35 . As shown in  FIGS. 1 and 2 , the removable knockout plate  35 , does not have an opening, however, when desired, an operator could remove the removable knockout plate  75 , and creating one or more opening  78 . As one can appreciate that it is rather easy for an operator to remove knockout plate  35 ,  75 , and then work on the removable knockout plate  35 ,  75 , as desired, and then easily secure the removable knockout plate  35 ,  75 , back into the back panel or frame  30 . With this invention an operator does not have to manipulate the whole electrical panel or enclosure  23 ,  53 , but only the removable knockout plate  35 ,  75 . The opening  78 , can be made by methods well known in the art, such as, for example, using a saw, a snip, a cutter, a laser beam, or any other device or tool that can cut a hole or opening in a panel or plate or knockout plate  35 ,  75 . 
         [0035]    For some applications the electrical apparatus  23 ,  53 , could comprise of a wrapper  50 , wherein the wrapper  50 , could have a primary or front or rear or back panel or wall  30 , a first side panel or wall  40 , a second side panel or wall  60 , a top end panel or wall or endwall  20 , a bottom end panel or wall or endwall  10 , and wherein each of the panels are secured to each other to form the wrapper  50 . It should be appreciated that at least one of the panels  10 ,  20 ,  30 ,  40 ,  60 , could have at least one cutoff or opening  55 , to securely engageably and removably accommodate at least one removable knockout plate  35 ,  75 , and wherein the at least one removable knockout plate  35 ,  75 , substantially covers at least one opening or cutoff  55 , in the at least one panel  10 ,  20 ,  30 ,  40 ,  60 , of the wrapper  50 . The at least one removable knockout plate  35 ,  75 , comprises of at least one first knockout  58 ,  71 ,  72 ,  73 ,  74 , and wherein the at least one first knockout  58 ,  71 ,  72 ,  73 ,  74 , is directly interconnected with at least one second knockout  58 ,  71 ,  72 ,  73 ,  74 , and wherein for example, the second knockout  73 , is engageably and removably secured to for example, the first knockout  72 , or  74 . The apparatus  23 ,  53 , also has at least one means for securing the at least one removable knockout plate  35 ,  75 , with the at least one first knockout  58 ,  71 ,  72 ,  73 ,  74 , and the at least one second knockout,  58 ,  71 ,  72 ,  73 ,  74 , such that the at least one removable knockout plate  35 ,  75 , substantially covers the at least one opening or cutoff  55 , in the at least one panel  10 ,  20 ,  30 ,  40 ,  60 , of the wrapper  50 , and upon removal of one of the, for example, at least one first knockout  73 , or for example, the at least one second knockout  72 ,  74 , creates a permanent hole or opening  78 , in the at least one removable knockout plate  35 ,  75 . It should be appreciated that the knockout  58 , comprises of a plurality of knockouts, such as, for example, knockouts  71 ,  72 ,  73 ,  74 , having weakened outlines  81 ,  82 ,  83 ,  84 , and having a perforations or tabs  91 ,  92 ,  93 ,  94 . 
         [0036]    It should be appreciated that the top endwall  20 , has a top frame  24 , having a top side frame  29 , that connects to the top side edge  49 , of the side panel  60 , while the top side frame  27 , of the top frame  24 , is connected to the top side edge  47 , of the side panel  40 , and similarly the top rear or back frame  28 , is securely connected to the top rear or back edge  48 , of the primary or front wall or panel or back wall or panel  30 . 
         [0037]    It should also be appreciated that the bottom endwall  10 , has a bottom frame  14 , having a bottom side frame or edge  39 , that connects to the bottom side frame or edge  19 , of the side panel  60 , while the bottom side frame  17 , of the bottom frame  14 , is connected to the bottom side edge  37 , of the side panel  40 , and similarly the bottom back or rear edge or frame  38 , is securely connected to the bottom rear or back edge  38 , of the primary or front wall or panel or back wall or panel  30 . 
         [0038]    As one can see in  FIGS. 1-4 , that the knockout  58 , comprises one or more knockouts  58 ,  71 ,  72 ,  73 ,  74 , within the cluster of knockouts in the removable knockout plate  35 ,  75 . Also shown in  FIGS. 1-4 , that the removable knockout plate  35 ,  75 , contains a knockout within a knockout, i.e., knockout  74 , is an outer most knockout  74 , while knockout  71 , is the inner most knockout  71 , and knockouts  72 ,  73 , are intermediate level knockouts  72 ,  73 . Thus this scheme of knockouts  71 ,  72 ,  73 ,  74 , allows a person in the field to just remove the knockout as needed, for example, a person in the field could just remove knockouts  71 ,  72 , and leave knockouts  73 ,  74 , for any future removal when an expansion for wiring or other electrical need is needed. This also allows to just have the minimum opening that is needed to get the job done, that is, if an opening the size of knockout  71 , is only needed, then knockout  71 , is removed, while leaving behind other knockouts, such as, knockouts  72 ,  73 ,  74 . It should be noted that when a knockout is removed, for example, knockout  71 , it is permanently removed, and which creates a permanent hole or opening  78 , and thus in order to fill or cover the removed knockout opening  78 , in the future one would need to replace the old knockout plate  35 ,  75 , with a new removable knockout plate  35 ,  75 . For some applications it is preferred that knockouts  71 ,  72 ,  73 ,  74 , are in a concentric configuration with respect to each other. It should also be appreciated that the knockouts  71 ,  72 ,  73 ,  74 , vary in size or area, and thus knockout  71 , is the smallest size knockout  71 , while knockout  74 , is the biggest size knockout  74 , and thus when knockout  74 , is removed from the removable knockout plate  35 ,  75 , the inner knockouts  71 ,  72 ,  73 , are also removed, and thus that removal of knockout  74 , creates the largest hole or opening  78 , in the removable knockout plate  35 ,  75 . 
         [0039]    The shape of the hole or opening  78 , could be selected from a group comprising, a rectangular shape, a circular shape, an elliptical shape, a triangular shape, a polygonal shape, a jagged shape, to name a few, as clearly shown in  FIGS. 1-4 . 
         [0040]    The shape of the knockout  58 , could be selected from a group comprising, a rectangular shape, a circular shape, an elliptical shape, a triangular shape, a polygonal shape, a jagged shape, to name a few, as clearly shown in  FIGS. 1-4 . 
         [0041]    The material for the removable knockout plate  35 , could be selected from a group comprising, a metallic material, a plastic material, a fiberglass material, a rubber material, a composite material, to name a few. 
         [0042]    The material for the wrapper  50 , could be selected from a group comprising, a metallic material, aplastic material, a fiberglass material, a rubber material, a composite material, to name a few. 
         [0043]    While the present invention has been particularly described in conjunction with a specific preferred embodiment, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. It is therefore contemplated that the appended claims will embrace any such alternatives, modifications and variations as falling within the true scope and spirit of the present invention.