in the following description , the term “ net ” refers to any type of net for sporting or recreational use which is sized and shaped for reversible attachment to the posts . unless otherwise explained , any technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs . the singular terms “ a ” “ an ” and “ the ” include plural referents unless the context clearly indicates otherwise . similarly , the word “ or ” is intended to include “ and ” unless the context clearly indicates otherwise . although methods and materials similar or equivalent to those described herein can be used in the practice or testing of this disclosure , suitable methods and materials are described below . the term “ comprises ” means “ includes .” all publications , patent applications , patents , and other references mentioned herein are incorporated by reference in their entirety for all purposes . in case of inflict , the present specification , including explanations of terms , will control . in addition , the materials , methods , and examples are illustrative only and not intended to be limiting . referring generally to fig1 - 8 , a portable net support system with tensioning adjustment for a supported net 100 includes a pair of end - post assemblies 200 , posts 260 attachable to the end - post assemblies , a series of spacers 310 connected between the end - post assemblies , wherein the spacers possess a substantially elliptical transverse cross - section , and a mid - frame sub - assembly 270 . the particular length and number of spacers may vary depending on the particular implementation . fig1 a and 1 b show respectively in left and right side views , an embodiment of a net support system with end - post assemblies 200 , a connector 220 , a series of spacers 310 forming a cross - member , and a mid - frame sub - assembly 270 that possesses a net tensioner support 272 . the frame assembly as shown in the exploded view depicts a simplified arrangement and an exemplary number of spacers . the number of spacers and the respective lengths and proportions of the spacers may vary . the end posts 260 may vary in length width or diameter . while the particular embodiment depicted has casters 400 , other embodiments may lack casters , or may be adapted to receive casters . fig2 a and 2 b show respectively in left and right top down views , an embodiment of a net support system with end - post assemblies 200 , a connector 220 , a series of spacers 310 forming a cross - member , and a mid - frame sub - assembly 270 that possesses a net tensioner support 272 . the frame assembly as shown in the exploded view depicts a simplified arrangement and an exemplary number of spacers . the number of spacers and the respective lengths and proportions of the spacers may vary . fig3 a and 3 b show respectively in left and right side views , an embodiment of an assembled net support system with end - post assemblies 200 , end posts 260 , connector 220 , a series of spacers 310 forming a cross - member , and a mid - frame sub - assembly 270 that possesses a net tensioner support 272 . the embodiment depicted has a net 150 having end sleeves 152 that are placed over the end posts 260 . also shown is a center sleeve 154 as part of the net 150 that is adapted to receive a tensioning rod 160 therein to stiffen the center portion of the net . one end of the tensioning rode 160 fits into cup 274 that may be adjusted in an up or down direction to move the tensioning rod up to increase upward forced on the center portion of the net , or down to relieve tensioning on the net . fig4 a and 1 b show respectively in left and right top down views , an embodiment of an assembled net support system with end - post assemblies 200 , an installed net 150 having end sleeves 152 placed over the end posts 260 , connector 220 , a series of spacers 310 forming a cross - member , and a mid - frame sub - assembly 270 that possesses a net tensioner support 272 with cup 274 . fig5 a and 5 b show respectively in left and right side views , another embodiment of an assembled net support system with end - post assemblies 200 , end posts 260 , a connector 220 , a series of spacers 310 forming a cross - member , and a mid - frame sub - assembly 270 that possesses a net tensioner support 272 . the particular embodiment depicted has a net 150 having end sleeves 152 that are placed over the end posts 260 . also shown is a center sleeve 154 as part of the net 150 that is adapted to receive a tensioning rod 160 therein to stiffen the center portion of the net . one end of the tensioning rode 160 fits into cup 274 that may be cylindrical member welded to the mid - frame sub - assembly , and may or may not permit height adjustment of the rod 160 in an up or down direction to increase or decrease upward force on the center portion of the net . fig6 a and 6 b show respectively in left and right side top down views , another embodiment of an assembled net support system with end - post assemblies 200 , end posts 260 , a connector 220 , a series of spacers 310 forming a cross - member , and a mid - frame sub - assembly 270 . in various embodiments herein , adjustment of tensioning rod 160 position within center sleeve 154 may be accomplished by placing spacers ( not shown ) between the rod end and the inside of cup 274 , or , in cases where the cup is fitted to a threaded post ; turning the cup to raise or lower it ( not shown ), or , substituting a tube ( see fig7 ) as part of the mid - frame sub - assembly 270 which is adapted to receive one end of the rod and employs a set screw that when tightened , arrests the movement of the rod so as to fix it in place to obtain a desired amount of net tension or center net height . rod tensioning means shown in the multiple embodiments herein are merely exemplary . other rod tensioning means will suggest themselves to those having skill in the art and benefit of this disclosure . it should be understood that the specific elements , features and objects of the various embodiments described herein may be interchanged , shared or substituted among the various embodiments without departing from the scope of the invention . fig8 is an cross - sectional detail view taken along lines 8 ′- 8 ′ of ( fig5 c ). the particular profile shown is not intended to be limiting . the width and height of the elliptic profile can vary depending on the particular implementation . the profile need not be a perfect ellipse . it should be understood by those having skill in the art , that while due in part to economy and space considerations , each end - post assembly of the particular embodiment shown depicts a substantially horizontal leg member or base , it is not intended that the invention be necessarily limited one leg member or base for each sub - assembly . while preferably the end - post sub - assembly and the spacers are constructed of light weight steel channel , it can be of any material of sufficient rigidity and stability as would suggest itself to those skilled in the art . in some embodiments , the cross - member formed by the spacers is substantially straight ( see fig5 a , 5 b ), while in other embodiments , the formed cross - member is arched . in view of the many possible embodiments to which the principles of the disclosed invention may be applied , it should be recognized that the illustrated embodiments are only preferred examples of the invention and should not be taken as limiting the scope of the invention .
an easily assembled and disassembled frame for a net game includes a rigid multi - part frame with a cross - member that is non - sagging . sections of the multi - part frame have an elliptical profile . a net stabilizer includes a tensioning member coupled at one end to a retention member of the frame , and having the other end of the tensioning member inserted into a center sleeve of the net , and , a center sleeve with a securing member for fastening securely at one end to the cross - member .