US PATENT SUBCLASS 473 / 461
.~.~.~ Racket or paddle swing analyzer or guide

Current as of: June, 1999
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473 /   HD   GAMES USING TANGIBLE PROJECTILE

415  DF  PLAYING FIELD OR COURT GAME; GAME ELEMENT OR ACCESSORY THEREFOR OTHER THAN PROJECTOR OR PROJECTILE, PER SE {14}
422  DF  .~ Practice or training device {7}
459  DF  .~.~ For game using field or court having dividing means thereon for separating opponents (e.g., for tennis, volleyball, table tennis, etc.) {5}
461.~.~.~ Racket or paddle swing analyzer or guide

DEFINITION

Classification: 473/461

Racket or paddle swing analyzer or guide:

(under subclass 459) Practice or training device comprising either (a) a means, separate from a racket or paddle-type projecting implement, for detecting and displaying to a user at least one aspect of racket or paddle movement or position when it is swung in a manner similar to the manner in which it should ideally be swung in an attempt to hit a projectile during play of the game, or (b) a means to constrain a racket or paddle-type projecting implement, when it is swung in practice, to follow the same path it should ideally follow when it is swung during play of the game.