Tennis net lifter system and associated method
First Claim
1. A tennis net lifter system for assisting a player to practice various skills-improvement tests, said tennis net lifter system comprising:
- first and second upstanding portable lifter posts positioned adjacent to stationary anchor posts of an existing tennis net assembly stretching across a width of a tennis court, said first and second lifter posts being registered parallel to said anchor posts and traveling along entire longitudinal lengths thereof respectively;
means for connecting said first and second lifter posts to said anchor posts such that said first and second lifter posts remain at a substantially stable and vertical positions during playing conditions;
means for telescopically locking said first and second lifter posts at selected heights above said anchor posts respectively;
a lifter net section operably coupled to said first and second lifter posts and positioned adjacent to an existing net of said tennis net assembly; and
means for selectively raising and lowering said lifter net section along a vertical plane aligned parallel with said existing net such that the player can vertically and uniformly bias said lifter net section along the entire width of the tennis court;
wherein the existing net remains stationary while said lifter net section is selectively raised and lowered along the vertical plane;
a plurality of rectilinear rods vertically aligned along a longitudinal length of said lifter net section, each of said rods being orthogonally registered to a around surface and being removably affixed to the existing net, each of said rods including a C-shaped locking clasp attached approximately midway a longitudinal length thereof, said C-shaped locking clasps being directly abutted with said lifter net section in such a manner that said rods can withstand lateral external forces from a tennis ball during playing conditions, said C-shaped clasps being slidably positional along the width of the existing tennis net such that said rods can be equidistantly juxtaposed side-by-side as desired by the player.
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Abstract
A tennis net lifter system includes first and second portable lifter posts positioned adjacent to existing tennis net anchor posts in various positions. A mechanism is included for connecting the lifter posts to the anchor posts. A mechanism is included for telescopically locking the lifter posts at selected heights above the anchor posts. A mechanism is included for raising and lowering the lifter net section along a vertical plane aligned parallel with the existing net such that the player can uniformly bias the lifter net section along a width of the tennis court. In addition to providing at least four alternate net section embodiments, the present invention further includes a portable dolly and a hand-operable winding apparatus for storing and transporting the net sections, respectively.
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Citations
18 Claims
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1. A tennis net lifter system for assisting a player to practice various skills-improvement tests, said tennis net lifter system comprising:
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first and second upstanding portable lifter posts positioned adjacent to stationary anchor posts of an existing tennis net assembly stretching across a width of a tennis court, said first and second lifter posts being registered parallel to said anchor posts and traveling along entire longitudinal lengths thereof respectively; means for connecting said first and second lifter posts to said anchor posts such that said first and second lifter posts remain at a substantially stable and vertical positions during playing conditions; means for telescopically locking said first and second lifter posts at selected heights above said anchor posts respectively; a lifter net section operably coupled to said first and second lifter posts and positioned adjacent to an existing net of said tennis net assembly; and means for selectively raising and lowering said lifter net section along a vertical plane aligned parallel with said existing net such that the player can vertically and uniformly bias said lifter net section along the entire width of the tennis court; wherein the existing net remains stationary while said lifter net section is selectively raised and lowered along the vertical plane; a plurality of rectilinear rods vertically aligned along a longitudinal length of said lifter net section, each of said rods being orthogonally registered to a around surface and being removably affixed to the existing net, each of said rods including a C-shaped locking clasp attached approximately midway a longitudinal length thereof, said C-shaped locking clasps being directly abutted with said lifter net section in such a manner that said rods can withstand lateral external forces from a tennis ball during playing conditions, said C-shaped clasps being slidably positional along the width of the existing tennis net such that said rods can be equidistantly juxtaposed side-by-side as desired by the player. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A tennis net lifter system for assisting a player to practice various skills-improvement tests, said tennis net lifter system comprising:
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first and second upstanding portable lifter posts positioned adjacent to stationary anchor posts of an existing tennis net assembly stretching across a width of a tennis court, said first and second lifter posts being registered parallel to said anchor posts and traveling along entire longitudinal lengths thereof respectively; means for connecting said first and second lifter posts to said anchor posts such that said first and second lifter posts remain at a substantially stable and vertical positions during playing conditions; means for telescopically locking said first and second lifter posts at selected heights above said anchor posts respectively; a lifter net section operably coupled to said first and second lifter posts and positioned adjacent to an existing net of said tennis net assembly; means for selectively raising and lowering said lifter net section along a vertical plane aligned parallel with said existing net such that the player can vertically and uniformly bias said lifter net section along the entire width of the tennis court, wherein said lifter net section raising and lowering means is spaced from the existing anchor posts; wherein the existing net remains stationary while said lifter net section is selectively raised and lowered along the vertical plane; and a portable dolly for winding and storing said lifter net section during non-playing and transport conditions, said portable dolly comprising a base member including first and second pairs of casters rotatably secured thereto and equidistantly offset from a center of said base member such that said base member can be tilted about one of said first and second caster pairs during transport, an elongated and rectilinear spool having a bottom end directly connected to said base member and extending vertically upward therefrom, a turn-table disposed above said base member, first and second annular flanges seated above said turn-table and statically coupled to said spool, said first and second flanges being vertically stacked along a bottom end of said spool and further being rotatable and concentrically journaled about said spool, a third annular flange statically coupled to said spool and axially aligned from said first and second flange, and a handle directly linked to said third flange, said handle protruding vertically upward from said third flange; wherein said spool is rotatable in sync with said turn-table, said spool having at least one connector pin passing therethrough for latching onto said lifter net section during winding and unwinding operations. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification