Speed-sensing projectile

Details Speed-sensing projectile Speed-sensing projectile

A - Human Necessities

63

B

A63B 43/00 (2006.01)

Patent

CA 2269784

A speed-sensing projectile (10) such as for example a baseball includes a generally spherical body (16). An inertial switch (42) is positioned within the body (16) and is actuable between open and closed conditions in response to accelerations of the body (16) greater than a threshold value. A processor (160) also within the body (16) is responsive to the inertial switch (42) and calculates the average speed at which the baseball is thrown over a fixed distance. A visible display (64) on the body (16) is in communication with the processor (160) and displays the calculated speed.

L'invention concerne un projectile (10) détecteur de vitesse, tel, par exemple, une balle de baseball, comprenant un corps (16) généralement sphérique. Un interrupteur à inertie (42) est placé à l'intérieur du corps (16), et est susceptible de se déclencher en position ouverte ou fermée en réponse à des accélérations du corps (16) supérieures à une valeur limite. Un processeur (160) situé également à l'intérieur du corps (16) est sensible à l'interrupteur à inertie (42), et calcule la vitesse moyenne à laquelle la balle de baseball est lancée sur une distance fixée. Un affichage (64) visible sur le corps (16) est relié au le processeur (160) et affiche la vitesse calculée.

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