Signals and indicators – Alarms – Reeled material end
Patent
1981-06-15
1983-03-22
Gill, James J.
Signals and indicators
Alarms
Reeled material end
73493, 116 74, 273186A, A63B 6936
Patent
active
043771254
ABSTRACT:
A training or practice device especially designed for use on athletic club type of equipment such as a golf club, tennis racket, baseball bat or the like which is swung to strike a game ball during normal game use and which device is releasably attached to the club, racket or bat and operable to provide an audible and visual indication when the swing of said equipment is proper. The device includes an element that is actuatable to give an audible and visual indication when the swing of the club type equipment has the optimum velocity and power for striking the game ball. The element is manually resettable after each swing of the equipment for subsequent and repeatable use of said equipment whereby the user, by practice, may repeatedly obtain the optimum velocity and power on each swing of the equipment.
REFERENCES:
patent: 2780098 (1957-02-01), Maroth
patent: 3575419 (1971-04-01), Davis
patent: 3601081 (1971-08-01), Smith et al.
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