Speed-sensing projectile

Details Speed-sensing projectile Speed-sensing projectile

1996-11-01

1998-06-02

Voeltz, Emanuel T.

Boots, shoes, and leggings

364569, 364410, 368 2, 368225, G06F 1520

Patent

active

057610967

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

REFERENCES:
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patent: 4771394 (1988-09-01), Cavanagh
patent: 4775948 (1988-10-01), Dial et al.
patent: 5163014 (1992-11-01), Calimeri
patent: 5199705 (1993-04-01), Jenkins et al.
patent: 5393974 (1995-02-01), Jee
patent: 5526326 (1996-06-01), Fekete et al.
patent: 5566934 (1996-10-01), Black et al.
patent: 5636146 (1997-06-01), Flentov et al.

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