Abstract:
A method of blocking tennis balls from one tennis court at a tennis facility from entering an adjacent tennis court. The method includes providing a vertical frame defining a front and a back, installing a removable panel on the frame, the vertical frame and the removable panel defining a temporary, removable, portable partition, temporarily placing the partition between a first tennis court and a second court at a tennis facility, the first and second tennis courts being adjacent to each other, via the partition, blocking a tennis ball played on the first tennis court from entering the second tennis court, and after play has concluded on the first tennis court, removing the partition from between the first and second tennis courts. The partition includes a hollow base having a fill port to receive water, sand, or another pourable, fungible substance for weighting the base and partition down.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application is a U.S. nonprovisional patent application of, and claims priority under 35 U.S.C. §119(e) to, U.S. provisional patent application Ser. No. 61/856,712, filed Jul. 21, 2013, which provisional patent application is incorporated by reference herein. 
    
    
     COPYRIGHT STATEMENT 
     All of the material in this patent document is subject to copyright protection under the copyright laws of the United States and other countries. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in official governmental records but, otherwise, all other copyright rights whatsoever are reserved. 
     BACKGROUND OF THE PRESENT INVENTION 
     Field of the Present Invention 
     The present invention relates generally to tennis court accessories, and, in particular, to tennis court partitions. 
     Background 
     It is common that a tennis court area is surrounded with a peripheral wall with a plurality of tennis courts arranged therein just by drawing lines on the surface of the courts plus it is conventional that there is no partition wall serving as a boundary between one tennis court and another adjacent to it. 
     A tennis ball typically rebounds strongly without reduction of rebounding force after impact against the surface of the fence located rearward of the back line. If such a strong rebound of a tennis ball takes place just at the rear of the back line, the ball may conveniently return back near to the player. However, if the ball is sent obliquely to either side of the fence rearward of the back line and runs into such a side, the ball may rebound toward and onto the adjacent tennis court when there is no partition between the tennis courts adjacent to each other. As a result of this, the players on the offending court are obliged to interrupt their game to retrieve the errant ball. Moreover the play going on in the adjacent court is also obliged to be interrupted when the tennis ball comes running in the adjacent court or service area thereof. Such interruptions occur frequently, and as a result critical points must be replayed. There is a further possibility that a player may accidentally tread on a tennis ball coming from the other court, causing injury. 
     Hence, an aspect of the technology described herein is to provide for addressing this situation. 
     Related patents known in the art include the following U.S. Pat. No. 4,014,521, issued to Berman on Mar. 29, 1977; U.S. Pat. No. 4,116,436, issued to Bjorhn on Sep. 26, 1978; U.S. Pat. No. 4,290,602, issued to Kennedy on U.S. Pat. Nos. 4,290,602; 4,456,252, issued to Hartland on Jun. 26, 1984; U.S. Pat. No. 4,491,321, issued to Veenema on Jan. 1, 1985; U.S. Pat. No. 4,834,377, issued to Weiss on 1989; U.S. Pat. No. 4,941,663, issued to Walker on Jul. 17, 1990; U.S. Pat. No. 5,004,235, issued to Sugu on Apr. 2, 1991; U.S. Pat. No. 5,141,226, issued to Cavanagh on Aug. 25, 1992; U.S. Pat. No. 5,407,178, issued to Long on Apr. 18, 1995; and U.S. Pat. No. 5,482,269, issued to Scott et al. on Jan. 9, 1996. 
     SUMMARY OF THE PRESENT INVENTION 
     Broadly defined, the present invention according to one aspect is a tennis court facility utilizing a temporary tennis court partition to prevent balls played on one tennis court from entering another tennis court, including: a first tennis court and a second tennis court, the first and second tennis courts disposed next to each other; and a temporary, removable, portable partition disposed between the first and second tennis courts to block balls played on the first tennis court from entering the second tennis court, the partition including a vertical frame, and an advertising panel, removably supported by the vertical frame. 
     In a feature of this aspect, the vertical frame has a front side and a back side and wherein the advertising panel is a sleeve that is installed over a top of the vertical frame and covers the front and back sides of the vertical frame. 
     In another feature of this aspect, the frame includes a weighted base to prevent the partition from being blown or knocked over. In further features, the base is hollow and is temporarily filled with water, sand, or another pourable, fungible substance; the hollow base includes a fill port; and/or the fill port is covered by a removable cap. 
     In another feature of this aspect, the frame includes a base, two vertical columns extending upward from the base, and a cross member extending from tops of the vertical columns, wherein each column includes a cylindrical portion attached to a rectilinear portion, and wherein the cylindrical portion and rectilinear portion each interface with the base. In a further feature, the base includes a cylindrical pedestal and a rectilinear pedestal for each column, wherein a lower end of the cylindrical portion of each column is hollow and rests on a respective cylindrical pedestal, and wherein a lower end of the rectilinear portion of each column is hollow and rests on a respective rectilinear pedestal. 
     In another feature of this aspect, the frame includes a base, two vertical columns extending upward from the base, and a cross member extending from tops of the vertical columns, wherein each column includes a cylindrical portion attached to a rectilinear portion, and wherein the cylindrical portion and rectilinear portion each interface with the cross member. In a further feature, the cross member includes a cylindrical opening and a rectilinear opening for each column, wherein an upper end of the cylindrical portion of each column is inserted into a respective cylindrical opening, and wherein an upper end of the rectilinear portion of each column is inserted into a respective rectilinear opening. 
     In another feature of this aspect, the frame includes a base, two vertical columns extending upward from the base, and a cross member extending from tops of the vertical columns, wherein the base is flared outward and downward from the vertical columns to provide improved support. 
     In another feature of this aspect, the tennis court facility further includes a fence extending along the first and second tennis courts, wherein the partition is temporarily disposed adjacent the fence and angled relative thereto. In a further feature, the fence is a first fence, wherein the partition is a first partition, wherein the tennis court facility further comprises a second fence extending along the first and second tennis courts opposite the first fence, and wherein the tennis court facility further comprises a second partition that is similar to the first partition and is temporarily disposed adjacent the second fence and angled relative thereto. 
     In another feature of this aspect, the sleeve includes perforations or other openings to permit airflow therethrough. 
     In another feature of this aspect, the sleeve includes indicia displayed thereon. 
     In another feature of this aspect, the partition includes a hollow base, flared outward and downward, having a fill port to receive water, sand, or another pourable, fungible substance for weighting the base and partition down, wherein the vertical frame includes two columns and a cross member extending across tops of the two columns, wherein the frame defines front and back sides, and wherein the advertising panel is a hollow sleeve, displaying indicia thereon, that is installed down over the cross member and columns so as to cover the front and back sides of the frame. 
     Broadly defined, the present invention according to another aspect is a temporary, removable, portable partition adapted to be disposed between two tennis courts to block balls played on one court from entering the other court, including: a hollow base, flared outward and downward, having a fill port to receive water, sand, or another pourable, fungible substance for weighting the base and partition down; a vertical frame, including two columns and a cross member extending across tops of the two columns, the frame defining front and back sides; and a hollow sleeve, displaying indicia thereon, that is installed down over the cross member and columns so as to cover the front and back sides of the frame. 
     Broadly defined, the present invention according to another aspect is a method of blocking tennis balls from one tennis court at a tennis facility from entering an adjacent tennis court at the same facility, including: providing a vertical frame defining a front and a back; installing a removable panel on the frame, the vertical frame and the removable panel defining a temporary, removable, portable partition; temporarily placing the partition between a first tennis court and a second court at a tennis facility, the first and second tennis courts being adjacent to each other; via the partition, blocking a tennis ball played on the first tennis court from entering the second tennis court; and after play has concluded on the first tennis court, removing the partition from between the first and second tennis courts. 
     In a feature of this aspect, the method further includes a step, after removing the partition from between the first and second tennis courts, of removing the removable panel from the frame. 
     In another feature of this aspect, the removable panel is an advertising panel, and wherein the method further comprises displaying one or more advertising indicia thereon. In further features, the step of displaying one or more advertising indicia includes displaying one or more advertising indicia commemorating a facility, an event, an organization or a sponsor; the step of displaying one or more advertising indicia includes displaying one or more advertising indicia including a web site address; the step of displaying one or more advertising indicia includes displaying one or more advertising indicia including a telephone number; and/or the step of displaying one or more advertising indicia includes displaying one or more advertising indicia including an email address. 
     In another feature of this aspect, the step of providing a vertical frame includes providing a base in conjunction with two vertical columns and a cross member. In further features, the step of installing a removable panel on the frame includes installing the panel over a top of the vertical frame and covers the front and back sides of the vertical frame; and/or the step of providing a base includes providing a hollow base with a fill port, and wherein the method further comprises filling the hollow base, via the fill port, with water, sand, or another pourable, fungible substance. 
     In another feature of this aspect, the step of installing a removable panel on the frame includes installing a sleeve over the frame. 
     In another feature of this aspect, a fence extends behind a respective baselines of the first and second tennis courts, and wherein the step of temporarily placing the partition between the first tennis court and the second court includes placing the partition adjacent the fence behind the baselines. 
     Broadly defined, the present invention according to another aspect is a free-standing tennis court partition as shown and described. 
     Broadly defined, the present invention according to another aspect is a free-standing tennis court partition, including: a frame, having a base, a plurality of columns extending upward from the base, and a cross member, connecting upper portions of the columns; and a sleeve extending over the frame. 
     In a feature of this aspect, the sleeve include structural features to which a sign may be attached. In a further feature, the structural features include a strip of hook and loop material. 
     In a further feature of this aspect, a sign is temporarily attached to a face of the sleeve. 
     Broadly defined, the present invention according to another aspect is a free-standing tennis court partition, including: a frame, having a hollow base, a plurality of columns extending upward from the base, and a cross member, connecting upper portions of the columns; and a covering extending over the frame. 
     In a feature of this aspect, the covering extends only over once face of the frame. 
     In another feature of this aspect, the base has a fill port. 
     In another feature of this aspect, the base is temporarily filled with a weighted material. In further features, the base is temporarily filled with water and/or sand. 
     Broadly defined, the present invention according to another aspect is a system for deterring tennis balls from going to an adjacent court including: a support device comprising a frame configured to stand upright on a planar surface wherein the frame is comprised of a plurality of tubular material components dimensioned to friction fit into each corresponding component to form a hollow rectangular shape having a top portion, a bottom portion and two opposing side portions connecting the top portion to the bottom portion, each of the two opposing side portions extending downward beyond the bottom portion towards the planar surface to form at least one planar surface contact point, each planar surface contact point having a planar surface foot attached thereon, the planar surface foot configured to have a non skid surface, creating an air gap between the planar surface and the bottom portion, wherein the air gap is slightly less than the height of a standard tennis ball; a water resistant air-permeable covering configured to attach to the support device and form a barrier over the hollow of the frame to a tennis ball striking the barrier, the air-permeable covering permitting the flow of air up to 20 miles per hour without destabilizing the support structure, wherein the covering has indicia disposed thereon; at least one of a transparent sleeve configured for insertion of a placard, the transparent sleeve affixed on the air-permeable covering; at least one connector attached to the support device and configured to releasably attach the support device to a tennis court fence positioned behind a base line of a tennis court; and at least one hinge attached to the support device, configured to allow the support device to pivot horizontally on the planar surface, the at least one hinge connected to the tennis court fence. 
     In a feature of this aspect, a method for deterring tennis balls from going from a first tennis court to an adjacent tennis court includes attaching the system to a first tennis court distal baseline fence approximately halfway between the first tennis court and the adjacent tennis court; attaching the system to a first tennis court proximal baseline fence approximately halfway between the first tennis court and the adjacent tennis court, and inserting a placard into each transparent sleeve. 
     Broadly defined, the present invention according to another aspect is a device for deterring tennis balls from going to an adjacent court including: a support for a standing on a tennis court surface, and a covering disposed on the support. 
     In a feature of this aspect, the support further includes a one-piece frame configured to stand upright on a planar surface and having a space beneath the frame and above the tennis court surface, the space having a height less than the height of a regulation tennis ball. In further features, the covering further includes a water resistant air permeable covering configured to attach to the support device; the covering has indicia disposed thereon; the device further includes one or more connectors configured to releasably attach the support to a tennis court baseline fence; the device further includes one or more of a hinge attaching the support to the tennis court baseline fence; the covering further includes one or more of a transparent sleeve dimensioned for insertion of a sheet of material conveying event information; the indicia commemorates a facility, an event, an organization or a sponsor; the indicia is a web site address; the indicia is a telephone number; and/or the indicia is an email address. 
     Broadly defined, the present invention according to another aspect is a temporary tennis court partition as shown and described. 
     Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Further features, embodiments, and advantages of the present invention will become apparent from the following detailed description with reference to the drawings, wherein: 
         FIG. 1  is a top schematic view of a tennis court facility employing two free-standing tennis court partitions in accordance with one or more preferred embodiments of the present invention; 
         FIG. 2  is an isometric view of one of the free-standing tennis court partitions of  FIG. 1 ; 
         FIG. 3  is an isometric view of the tennis court partition of  FIG. 2 , shown with the sleeve removed; 
         FIGS. 4A and 4B  are an isometric view and a front view, respectively, of the base of  FIGS. 2 and 3 ; 
         FIGS. 5A and 5B  are an isometric view and a front view, respectively, of one of the columns of the frame of  FIG. 3 ; 
         FIGS. 6A and 6B  are an isometric view and a bottom view, respectively, of the cross member of the frame of  FIG. 3 ; 
         FIGS. 7, 8, and 9  are orthogonal bottom views of the base, one of the columns, and the cross member, illustrating additional structural features thereof; 
         FIG. 10  is an isometric view of the sleeve of  FIG. 2 ; 
         FIG. 11  is a fragmentary perspective view of a free-standing tennis court partition, attached to a fence, for deterring tennis balls from going from one court into an adjacent court, all in accordance with one or more preferred embodiments of the present invention; 
         FIG. 12  is a partially exploded fragmentary perspective view of the covering removed from the frame of  FIG. 11 ; 
         FIG. 13  is a perspective view of the frame of  FIG. 12 ; 
         FIG. 14  is an exploded perspective of the frame of  FIG. 13 ; 
         FIG. 15  is a front view of another alternative free-standing tennis court partition in accordance with one or more preferred embodiments of the present invention; 
         FIG. 16  is a front view of the free-standing tennis court partition of  FIG. 15 , shown without a mesh net, but using a different attachment mechanism; 
         FIG. 17  is a front view of an alternative main body for the partition of  FIG. 15 ; and 
         FIG. 18  is a front view of yet another embodiment of a partition. 
     
    
    
     DETAILED DESCRIPTION 
     As a preliminary matter, it will readily be understood by one having ordinary skill in the relevant art (“Ordinary Artisan”) that the present invention has broad utility and application. Furthermore, any embodiment discussed and identified as being “preferred” is considered to be part of a best mode contemplated for carrying out the present invention. Other embodiments also may be discussed for additional illustrative purposes in providing a full and enabling disclosure of the present invention. As should be understood, any embodiment may incorporate only one or a plurality of the above-disclosed aspects of the invention and may further incorporate only one or a plurality of the above-disclosed features. Moreover, many embodiments, such as adaptations, variations, modifications, and equivalent arrangements, will be implicitly disclosed by the embodiments described herein and fall within the scope of the present invention. 
     Accordingly, while the present invention is described herein in detail in relation to one or more embodiments, it is to be understood that this disclosure is illustrative and exemplary of the present invention, and is made merely for the purposes of providing a full and enabling disclosure of the present invention. The detailed disclosure herein of one or more embodiments is not intended, nor is to be construed, to limit the scope of patent protection afforded the present invention, which scope is to be defined by the claims and the equivalents thereof. It is not intended that the scope of patent protection afforded the present invention be defined by reading into any claim a limitation found herein that does not explicitly appear in the claim itself. 
     Thus, for example, any sequence(s) and/or temporal order of steps of various processes or methods that are described herein are illustrative and not restrictive. Accordingly, it should be understood that, although steps of various processes or methods may be shown and described as being in a sequence or temporal order, the steps of any such processes or methods are not limited to being carried out in any particular sequence or order, absent an indication otherwise. Indeed, the steps in such processes or methods generally may be carried out in various different sequences and orders while still falling within the scope of the present invention. Accordingly, it is intended that the scope of patent protection afforded the present invention is to be defined by the appended claims rather than the description set forth herein. 
     Additionally, it is important to note that each term used herein refers to that which the Ordinary Artisan would understand such term to mean based on the contextual use of such term herein. To the extent that the meaning of a term used herein—as understood by the Ordinary Artisan based on the contextual use of such term—differs in any way from any particular dictionary definition of such term, it is intended that the meaning of the term as understood by the Ordinary Artisan should prevail. 
     Regarding applicability of 35 U.S.C. §112, ¶6, no claim element is intended to be read in accordance with this statutory provision unless the explicit phrase “means for” or “step for” is actually used in such claim element, whereupon this statutory provision is intended to apply in the interpretation of such claim element. 
     Furthermore, it is important to note that, as used herein, “a” and “an” each generally denotes “at least one,” but does not exclude a plurality unless the contextual use dictates otherwise. Thus, reference to “a picnic basket having an apple” describes “a picnic basket having at least one apple” as well as “a picnic basket having apples.” In contrast, reference to “a picnic basket having a single apple” describes “a picnic basket having only one apple.” 
     When used herein to join a list of items, “or” denotes “at least one of the items,” but does not exclude a plurality of items of the list. Thus, reference to “a picnic basket having cheese or crackers” describes “a picnic basket having cheese without crackers,” “a picnic basket having crackers without cheese,” and “a picnic basket having both cheese and crackers.” Finally, when used herein to join a list of items, “and” denotes “all of the items of the list.” Thus, reference to “a picnic basket having cheese and crackers” describes “a picnic basket having cheese, wherein the picnic basket further has crackers,” as well as describes “a picnic basket having crackers, wherein the picnic basket further has cheese.” 
     Referring now to the drawings, in which like numerals represent like components throughout the several views, one or more preferred embodiments of the present invention are next described. The following description of one or more preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. 
       FIG. 1  is a top schematic view of a tennis court facility  10  employing two free-standing tennis court partitions  100  in accordance with one or more preferred embodiments of the present invention. As shown therein, the tennis court facility  10  includes two adjacent courts  12  that are jointly surrounded by a fence  14 . The construction of the courts  12  and fence  14  may be conventional in nature. Notably, in at least some embodiments, the fence  14  does not include any portion extending between the two courts  12  themselves. However, two free-standing tennis court partitions  100  are shown installed near the back fences  16  that extend behind the baselines of the two tennis courts  12 . 
       FIG. 2  is an isometric view of one of the free-standing tennis court partitions  100  of  FIG. 1 , and  FIG. 3  is an isometric view of the tennis court partition  100  of  FIG. 2 , shown with the sleeve  102  removed. As shown therein, the tennis court partition  100  includes a base  110 , a frame  120 , and a sleeve or other cover  102  installed over the frame  120 . 
       FIGS. 4A and 4B  are an isometric view and a front view, respectively, of the base  110  of  FIGS. 2 and 3 . The base  110  includes a main body  112 , a pair of double pedestal structures  113 , and a fill port  116 . The double pedestal structures  113  each include a cylindrical pedestal  114  and a smaller square pedestal  115  extending upward from the top of the main body  112  and are designed to interconnect with the columns  122  as described further below. The main body  112  itself is hollow to accommodate a quantity of water, sand, or other inexpensive, easily obtainable, weighted material suitable for maintaining the main body  112 , and thus the partition  100  as a whole, in an upright position when the frame  120  and sleeve  102  are installed thereon, even when the partition  100  is subjected to wind, struck balls, contact with tennis players, and the like. The weighted material may be loaded into the hollow main body  112  via the fill port  116 , which is preferably threaded to receive a correspondingly-threaded cap  104  (shown in  FIG. 3 ). Although the fill port  116  is shown as being in the middle of the top surface of the base  110 , a fill port could alternatively or additionally be located elsewhere, such as at the end of the base  110 . The main body  112  may also include a pair of flat areas  106  (one shown) for accommodating a brand, logo, or the like, which may be applied via molding, engraving, separate adhesive strip, or the like. 
     The frame  120  includes two columns  130  and a cross member  122 .  FIGS. 5A and 5B  are an isometric view and a front view, respectively, of one of the columns  130  of the frame  120  of  FIG. 3 , and  FIGS. 6A and 6B  are an isometric view and a bottom view, respectively, of the cross member  122  of the frame  120  of  FIG. 3 . Each column  130  includes an elongated cylindrical portion  132  and a square portion  133  running the length of the cylindrical portion  132 . Recesses  138  having molded or drilled apertures  139  therein may also be provided, such as between the upper end of the cylindrical portion  132  and the upper end of the square portion  133 , and between the lower end of the cylindrical portion  132  and the lower end of the square portion  133 . The lower end of each of the cylindrical portion  132  and the square portion  133  is preferably hollow so as to form a respective female fitting  134 , 135  that fits over and around a corresponding pedestal  114 , 115  on the main body  112  of the base  110 . The upper end of each of the cylindrical portion  132  and the square portion  133  comprises a respective male fitting  136 , 137  adapted to fit into a respective corresponding downward-oriented female fitting  126 , 127  in the bottom of the cross member  122  (shown in  FIG. 6B ). In other words, each end of the cross member  122  includes a cylindrical female fitting  126  and a square female fitting  127  sized to accommodate the upper ends  136 , 137  of the cylindrical portion  132  and the square portion  133 , respectively, of one of the columns  130 . As with the frame columns  130 , recesses  128  having molded or drilled apertures  129  therein may be provided, such as between the each cylindrical female fitting  126  and the adjacent square female fitting  127 . 
     In some embodiments, at least some of the respective female fittings  126 , 127 , 136 , 137  may be snap-fit into place for easy assembly and disassembly, but other constructions may alternatively or additionally be utilized. In the illustrated embodiment, snap-fitting between the columns  130  and the base  110  is facilitated via a notch  111  in each of the two cylindrical pedestals  114  on the base  110  and a corresponding feature  131  in the wall of the bottom of the cylindrical portion  132  of each column  130 . 
       FIGS. 7, 8, and 9  are orthogonal bottom views of the base  110 , one of the columns  130 , and the cross member  122 , respectively, illustrating additional structural features thereof. In some embodiments, the joints between the columns  130  and the base  110 , the joints between the cross member  122  and the columns  130 , or both, may be secured via fasteners (not shown) of various types. In the illustrated embodiment, the columns  130  may be clamped to the pedestals  114 , 115  of the base  110  by inserting fasteners through the apertures  139  in the lower recesses  138  and tightening them, thereby pulling opposing walls of the lower end of each column  130  toward each other. Although not shown, fasteners may additionally or alternatively be used to fasten the columns  130  directly to the pedestals  114 , 115 . Also in the illustrated embodiment, the cross member  122  may be attached to the columns  130  by inserting fasteners (not shown) through the apertures  129  in the recesses  128  of the cross member  122  and through corresponding apertures  139  in the upper recesses  138  of the columns  130 . Although not shown, fasteners may additionally or alternatively be used to clamp the cross member  122  to the tops of the columns  130 . 
     In at least some embodiments, the elements of the frame  120  are constructed using rotational molding. In one contemplated commercial embodiment, the base  110  (and thus the partition  100  as a whole) is 54 inches long and 12 inches wide, the columns  130  are approximately 47 inches high, and the overall height of the partition  100  is 54 inches. These dimensions are thought to provide a good balance between the percentage of tennis balls that are blocked and the overall impedance the partition  100  provides and its ease of use. 
     To prepare the tennis court partition  100  for use, the base  110 , columns  130 , and cross member  122  are assembled as described above to produce the frame  120  shown in  FIG. 3 . The base  100  is filled with water, sand, or the like using the fill port  116 , and the cap  104  is replaced. A selected sleeve  102  is installed over the assembled frame  120  by pulling an open lower end  108  over the top of the frame  120  and pulling the sleeve  102  downward until the upper end  109  of the sleeve  102  is seated on the top of the frame  120 .  FIG. 10  is an isometric view of the sleeve  102  of  FIG. 2 . The sleeve  102  is preferably sized to fit relatively snugly over the frame  120 , but not so tightly that it cannot be readily removed, and to extend to exactly or close to the top of the base  110  when fully seated on the frame  120 . In some embodiments, the sleeve  102  is made from mesh or otherwise includes holes or openings to lessen wind resistance, but in other embodiments, the sleeve  102  does not have such openings. The sleeve  102  is preferably made from a material that will stand up to wind, rain, and other environmental elements. One material suitable for use is polyester. 
     In at least some embodiments, the sleeve  102  is adorned with artwork in the form of a tennis club, facility or tournament brand, school name or logo, corporate sponsor (third party product brand or other) brand, or other readable information (such as informational signs). 
     In one embodiment (not illustrated), the sleeve includes structural features, such as hook and loop elements, grommets, or the like, to which a more easily removable sign may be removably attached via corresponding structural features of its own. The removable signs may be adorned with artwork of the type described above. In this way, it may be possible to change the artwork shown on the tennis court partitions without preparing an entirely new sleeve. 
     Advantageously, when a tennis match is being played, the free-standing tennis court partition  100  helps prevent tennis balls from rolling or bouncing from the court  12  that the tennis match is being played on to adjacent courts  12 . When positioned in one of the locations shown in  FIG. 1 , the partition  100  specifically helps prevent this from happening along the area of the back fences  16  of the tennis court  12 , but it will be appreciated that the partition  100  can be placed elsewhere as well. This is particularly important on tennis courts  12 , a large number of which exist and are in regular use today, that have only a fence  14 , and no side partition, along the backs thereof. 
     Notably, the weight that exists when water or sand is put into the base  110  creates enough overall weight for the assembly so that the assembly does not have to be connected to the back fence  16  in any way. By not being connected to the fence  16 , the assembly is a free standing unit and can be moved when maintenance of the courts  12  (i.e. sweeping, watering) is being done. The free standing unit also allows for moving the partition  100  from one court  12  to another if needed for any reason (for example, if a limited number of partitions  100  are available and it is desired to use the partitions  100  on various different courts  12 , or for tournaments or special events) and for easily removing the unit during the winter season if needed. 
     Overall, the tennis court partition  100  of the present invention prevents balls from rolling or bouncing from one court  12  to another. This enhances the tennis match experience by reducing interruptions (due to fewer “lets” being called and points having to be replayed) and reducing match length. It also enhances the experience of tennis lessons and clinics because teaching professionals and players do not have to pick up balls on adjacent courts  12 . Furthermore, tennis facilities have the opportunity for branding their facility, school, corporate sponsors, or the like by having their logos placed on the sleeve  102  of the assembly, or on signs mounted thereon. 
     Other free-standing tennis court partitions are also possible. For example,  FIG. 11  is a fragmentary perspective view of a free-standing tennis court partition  600 , attached to a fence  16 , for deterring tennis balls from going from one court  12  into an adjacent court  12 , all in accordance with one or more preferred embodiments of the present invention, and  FIG. 12  is a partially exploded fragmentary perspective view of the covering  602  removed from the frame of  FIG. 11 . As shown therein, the free-standing tennis court partition  600  comprises a frame  620  and a covering  602 . The partition  600  is configured to stand upright on a planar surface wherein the frame  620  is comprised of a plurality of tubular material components dimensioned to friction fit into each corresponding component to form a hollow rectangular shape.  FIG. 13  is a perspective view of the frame  620  of  FIG. 12 , and  FIG. 14  is an exploded perspective of the frame  620  of  FIG. 13 . As shown therein, the frame  620  includes a top portion, a bottom portion and two opposing side portions connecting the top portion to the bottom portion, each of the two opposing side portions extending downward beyond the bottom portion towards the planar surface to form at least one planar surface contact point, each planar surface contact point having a planar surface foot  601  attached thereon, the planar surface foot  601  configured to have a non-skid surface  603 , creating an air gap  605  between the planar surface and the bottom portion, wherein the air gap  605  (shown in  FIG. 11 ) is slightly less than the height of a standard tennis ball (not shown). The covering  602  may be a water resistant air-permeable covering  602  configured to attach to the frame  620  and form a barrier over the hollow of the frame to a tennis ball striking the barrier, the air-permeable covering  602  permitting the flow of air up to 20 miles per hour without destabilizing the support structure, wherein the covering has indicia  640  disposed thereon, a transparent sleeve (not shown) configured for insertion of a placard, or both. If used, the transparent sleeve may be affixed on the air-permeable covering  602 . The frame  620  may be attached to a tennis court fence  16  via a fence connector  107  attached to the frame  620  and configured to releasably attach the frame  620  to the tennis court fence  16  positioned behind a base line of a tennis court  12  (or elsewhere), such as is shown in  FIG. 1 . A hinge may further be attached to the frame  620 , configured to allow the frame  620  to pivot horizontally on the planar surface, the at least one hinge connected to the tennis court fence  16 . 
     In this embodiment, the partition  600  deters tennis balls from rolling from one court  12  into another court  12 , and comprises a windscreen-like material  602 , tubing that creates an outer frame  620  for this material  602 , and a clip  607  that attaches the partition  600  to the tennis court fence  16 . These components are connected as follows: tubular material is connected to configure, for example, a 4 foot long×3 foot high outer frame, the polypropylene windscreen like material has sewn and reinforced sleeves that attaches to the tubular outer framing material to form outer frame, with U-bolts that attaches/secures the frame to a fence. The tubular moldings that run vertical to the court can have small (just big enough for the moldings to fit into) rubber shoes placed on the end of the tubular moldings that extend down to the tennis court surface. 
     In one contemplated embodiment, the bottom of the frame  620  will rest approximately two inches above the surface of the court  12  so that leaves, debris, and the like will not gather around the bottom of the partition  600 . This space will not be higher than the height of a tennis ball so that the tennis ball cannot roll underneath the partition  600 . The partition  600  can be used to keep tennis balls from rolling from one court  12  into a tennis court  12  adjacent to it and placed strategically (in between the two courts  12  and secured to baseline fence  16 ) in an area where numerous balls roll or bounce from one court to the other. The partition  600  is not intended to keep every ball from rolling or bouncing from one court  12  to another but rather to block/prevent a high percentage of balls that would normally enter the adjacent court  12  if it were not for this device. 
     There is also the option of having a hinge placed on the partition  600  between the partition  600  and the tennis court fence  16  so that the partition  600  can swing back flush against the fence  16  when it is not in use. Another option for the partition  600  is having it in three to four components that be folded into one piece so it can be shipped more efficiently and carried on and off the tennis court  12  more easily. 
     The technology described herein also comprises a method for deterring tennis balls from going from a first tennis court  12  to an adjacent tennis court  12 , the method comprising attaching a partition according to the partition just described above to a first tennis court distal baseline fence  16  approximately halfway between the first tennis court  12  and the adjacent tennis court  12 ; attaching the partition to a first tennis court proximal baseline fence  16  approximately halfway between the first tennis court  12  and the adjacent tennis court  12 , and inserting a placard into each transparent sleeve. 
     In yet another embodiment a partition for deterring tennis balls from going to an adjacent court comprises: a support for a standing on a tennis court surface, and a covering disposed on the support. In this embodiment the support further comprises a one-piece frame configured to stand upright on a planar surface and having a space beneath the frame and above the tennis court surface, the space having a height less than the height of a regulation tennis ball. The covering may further comprise a water resistant air-permeable covering configured to attach to the support device, where the covering has indicia disposed thereon. 
     One or more connectors may be configured to releasably attach the support to a tennis court baseline fence. 
     One or more hinge may be used in attaching the partition to the tennis court baseline fence. 
     The covering may further include one or more of a transparent sleeve dimensioned for insertion of a sheet of material conveying event information. The indicia can commemorate a facility, an event, an organization or a sponsor, can be a web site address, a telephone number, an email address, a public service message, or the like. 
     Other variations of a tennis court partition  700  are shown in  FIGS. 15-17 , wherein  FIG. 15  is a front view of another alternative free-standing tennis court partition  700  in accordance with one or more preferred embodiments of the present invention,  FIG. 16  is a front view of the free-standing tennis court partition  700  of  FIG. 15 , shown without a mesh net, but using a different attachment mechanism, and  FIG. 17  is a front view of an alternative main body for the partition of  FIG. 15 . The tennis court partition  700  of  FIG. 15  includes a first rod  721 , a second rod  722 , a third rod  723 , a main body  702 , fasteners  707  and a main body  702 , which is shown as a mesh net. The first rod  721  connects to the second rod  722  and the third rod  723  connects to the second rod  722 , as shown. The first rod includes a groove  725  that accepts a plastic tube or other tongue structure  726  on the mesh net  702 . The fasteners  707  connect to the back of the first rod  721  in order for the tennis court partition  700  to be releasably attached to a tennis court fence  16  such that a gap  705  is high enough to allow most debris to not be trapped between court surface  17  and the connected second rod  722  and third rod  723 , yet to low enough to stop a tennis ball. 
     In one embodiment the main body  702  is a mesh net and is attached to the first rod  721  and the third rod  723  by clamps or hooks. In an alternate embodiment, the mesh net is attached to the first rod  721  by sliding in groove  022  and attaching to a hook  742  on the third rod  723 . In yet another embodiment the main body  702  is made of hard plastic and has a plastic tube  726  that slides into the groove  725 . The main body  702 , whether it is a mesh net or a hard plastic, can have indicia thereupon, e.g. a logo  744 , contact information  746 , and the like. 
       FIG. 18  is a front view of yet another embodiment of a partition  800 , wherein the main body is attached to a top pole  811  and a bottom pole  821 , and the bottom pole  821  has a peg  831  attached or affixed thereon to provide support to the bottom pole  821  to the court surface below. 
     In at least some embodiments, a main body is comprised of hard material, e.g. rubber or plastic, and has strong plastic or metal rods for the perimeter of the device to provide sturdiness and the ability for it to withstand a ball hitting it multiple times. The device may further include fasteners, e.g. latches, of metal or hard plastic, which enables the device to lock into a tennis court fence at the base of the device. In some embodiments a hinge is between the fasteners and the main body of the device to allow the device to swing into the court while being used and swung back over to the fence and latching onto the fence while not being used. In some embodiments the technology described herein has a slot for insertion of identifying indicia therein. In other embodiments an area of the technology is operable for the placement of identifying indicia thereon. 
     In at least some other embodiments, a main body is comprised of a strong flexible material, e.g. nylon, plastic or cloth, with strong plastic or metal rods for the perimeter of the device to provide sturdiness and the ability for it to withstand a ball hitting it multiple times. The device may further include latches, e.g. metal or hard plastic, that enable the device to lock into a tennis court fence at the base of the device. In some embodiments a hinge is between the latches and the main body of the device to allow the device to swing into the court while being used and swung back over to the fence and latching onto the fence while not being used. In some embodiments the technology described herein has a slot for insertion of identifying indicia therein. In other embodiments an area of the technology is operable for the placement of identifying indicia thereon. 
     In an exemplary embodiment the device is comprised of two (2) soft, flexible poles, a main pole and a second pole. The main pole is mounted, e.g., via 2 clamps, on the fence between the courts. The second pole is positioned to hover 1-2 inches above the surface of the court. Upon initial install, the second pole is flush with the fence. Once the main pole is mounted on the fence, the second pole is pulled away from the fence until it clicks into position. The main pole is 3′ in length and the second pole is 3′ in length. The third pole is an extension to the second pole which is shipped in the initial packaging. This third pole has a threaded end which screws into the second pole thus making that pole a total of 3′ in length as it hovers above the court&#39;s surface. 
     Once the main bar is mounted on the fence and the second pole is clicked into position, the customer then installs a flag, e.g. a mesh flag. The mesh flag is triangular in shape. The long side of the flag slides into a groove on the main pole until the flag clicks into position. The other end of the flag has a hollow opening which slides over the hook on the end of the third pole. The flexible bars and mesh netting are sturdy enough to withstand the force of the tennis ball, but soft enough to slow the motion of the tennis ball and settle the tennis ball on the original court of play. 
     In an alternate embodiment the technology described herein has three flexible poles (i.e., bars)—one of which is mounted (e.g., via 2 hooks) on the fence between courts. Once the main bar is mounted on the fence, the 3 feet long×3 feet high mesh netting is pulled out away from the fence into the court. The mesh netting has a soft flexible top pole attached to the top and a soft flexible bottom pole attached to the bottom. The bottom pole has a small adjustable peg that extends out from the bottom pole to rest on the court&#39;s surface. This peg supports the far end of the mesh netting as the mesh netting is extended out into the court. The flexible bars and mesh netting are sturdy enough to withstand the force of the tennis ball, but soft enough to slow the motion of the tennis ball and settle the tennis ball on the original court of play. If the device is not desired nor needed, a user can simply push a button at the top of the fence mounted pole, release the clasp and allow the mesh netting to be pushed back flush against the fence. At any time, the device can then be unhooked from the fence and removed. The bar mounted on the fence is approximately 3 feet in height. The bar at the top of the mesh netting and the bar at the base of the mesh netting are both 3 feet in length (therefore extending 3 feet into the court). The bar located along the court surface is suspended approximately 1-2 inches above the court surface. 
     When the device is not desired or needed, a user can push the second pole back flush against the fence. Additionally, the device can be unhooked from the fence and removed. 
     The main pole, when mounted on a fence will be approximately 3 feet in height. The pole hovering above the court (second and third poles combined) is 3 feet in length. The bar located along the court surface will suspend approximately 1-2 inches above the court surface. 
     In one embodiment the technology described herein is portable and is not secured to the tennis court fence. Instead it has a weighed base, thus allowing it to have sufficient inertia to stop tennis balls, yet still be able to be placed on a court during play, and easily removed afterwards. Similarly the second and third pole arrangement can be replaced by a pole that telescopes. 
     In one embodiment the technology described herein is made by taking a 3 foot long and 3 foot high piece of hard plastic or strong nylon material, running a strong plastic or metal rod (approx ½ inch in diameter inside the perimeter of each outer boundary of the material, taking two metal clamps and attach them to the material, one that is two inches from the top of material and one that is two inches from the bottom of the material, and taking these two clamps and connecting each of them to the tennis court fence. (Once clamped to the tennis court fence the device can extend up to five feet out from the tennis court fence and stand approximately two feet above the court. When clamped to the fence, the device is positioned so that there is 2-3 inches between the bottom of the device and the tennis court playing surface.) 
     Based on the foregoing information, it will be readily understood by those persons skilled in the art that the present invention is susceptible of broad utility and application. Many embodiments and adaptations of the present invention other than those specifically described herein, as well as many variations, modifications, and equivalent arrangements, will be apparent from or reasonably suggested by the present invention and the foregoing descriptions thereof, without departing from the substance or scope of the present invention. 
     Accordingly, while the present invention has been described herein in detail in relation to one or more preferred embodiments, it is to be understood that this disclosure is only illustrative and exemplary of the present invention and is made merely for the purpose of providing a full and enabling disclosure of the invention. The foregoing disclosure is not intended to be construed to limit the present invention or otherwise exclude any such other embodiments, adaptations, variations, modifications or equivalent arrangements; the present invention being limited only by the claims appended hereto and the equivalents thereof.