Tennis instructional aid and method

• US 4,948,372 A
• Filed: 03/10/1989
• Issued: 08/14/1990
• Est. Priority Date: 03/10/1989
• Status: Expired due to Term

• Current Assignee: Duane Stotland
• Original Assignee: Duane Stotland
• Inventors: Stotland, Duane
• Primary Examiner(s): Grieb, William H.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/321,387
• Time in Patent Office: 522 Days
• Field of Search: 434/247, 434/248, 434/250, 434/251, 434/255, 273/29 A, 273/29 R, 273/30, 273/31
• US Class Current: 434/247
• CPC Class Codes: G09B 19/0038 Sports

Abstract

Tennis gauge 10 uses a plurality of adhesive dots 11 and 12 to teach relative positioning of a tennis player on tennis court 1 with respect to the bouncing point of a ground stroked tennis ball. First indicia adhesive dots 11 are positioned along service box centerlines 7 nine feet fore and aft service line 4. Second indicia adhesive dots 12 are attached along the longitudinal service box centerline 7 at points nine feet aft base lines 6. Tennis player uses the adhesive dots to indicate the relative distance behind the bouncing point of a ground stroked tennis ball for the return stroke.

Claims

1. A tennis instructional aid which comprises:

a tennis court, including a tennis playing surface having a net, a service line and a service box; and

a plurality of position locating indicia being attached to particular points on the tennis playing surface which correspond to the most statistically probable distance behind the net that a ground stroked tennis ball will impact with the playing surface and to the statistically optimum hitting position behind the net for a player returning the ground stroked tennis ball, for indicating the relative positioning of a tennis player with respect to the location of the bounce of a ground stroked tennis ball.

2. The tennis instructional aid of claim 1 wherein said plurality of position locating indicia comprises pairs of indicia wherein a first indicia of any given pair is positioned on the playing surface at a point behind the tennis net which corresponds to the most statistically probable bouncing point of a ground stroked tennis ball, and further wherein the second indicia of any given pair is positioned on the playing surface at a point behind said first indicia which corresponds to the optimum hitting position for a player returning the most probable ground stroked tennis ball.

3. The tennis instructional aid of claim 2 wherein said first indicia is positioned on the playing surface at a point behind the net and nine feet in front of the service line and along a service box centerline.

4. The tennis instructional aid of claim 3 wherein said first and second indicia comprise round dots having adhesive on one side and a diameter approximately equal to that of a tennis ball.

5. The tennis instructional aid of claim 2 wherein said first indicia is positioned on the playing surface at a point nine feet behind the service line and

6. The tennis instructional aid of claim 1 wherein said plurality of locating indicia comprises a strip of material having rectangular colored segments and being arranged in a repeating color code having three distinct colors.

7. The tennis instructional aid of claim 6 wherein said rectangular segments are three feet in length.

8. The tennis instructional aid of claim 6 wherein said rectangular segments are six feet in length.

9. A tennis instructional aid which comprises:

a tennis court, including a tennis playing surface having a net, a service line and a service box; and

a plurality of round dots having adhesive on one side and a diameter approximately equal to that of a tennis ball, being attached to particular points on a tennis playing surface at distances of approximately nine and eighteen feet behind the net, which correspond to the most statistically probable distance behind the net that a ground stroked tennis ball will impact with the playing surface and to the statistically optimum hitting position behind the net for a player returning the ground stroked tennis ball, for indicating the relative positioning of a tennis player with respect to the location of the bounce of a ground stroked tennis ball.

10. A method of teaching relative positioning of a tennis player with respect to the bounce of a ground stroked tennis ball on a tennis court having a net, a service line, a service box and a base line, comprising the steps of:

A) attaching a first locating indicia to a point on the tennis court playing surface at a known distance behind the net which corresponds to the most statistically probable distance behind the net that a ground stroked tennis ball will impact with the playing surface;

B) attaching a second locating indicia to a point on the tennis court playing surface behind said first indicia which corresponds to the statistically optimum hitting position behind the net for a player returning the ground stroked tennis ball; and

C) adjusting the player'"'"'s hitting position relative to said second indicia according to the point of impact on the tennis court of the ground stroked tennis ball relative to said first indicia.

11. The method of claim 10 wherein step A) further comprises attaching an adhesive dot approximately the size of a tennis ball to a point along a centerline of the service box and nine feet in front of the service line.

12. The method of claim 10 wherein step A) further comprises attaching a first adhesive dot, being approximately the size of a tennis ball, to a point on a centerline of the service box nine feet in front of the base line, and step B) further comprises attaching a second adhesive dot, being approximately the size of a tennis ball, to a point on the centerline of the service box nine feet behind the baseline.