Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1979-07-30
1981-08-25
Mancene, Gene
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
33355R, 324260, 434301, A63H 3326, G01C 1702
Patent
active
042851580
ABSTRACT:
A toy including a housing having a front panel, a compass having a magnetic needle mounted on the panel, a pair of LED's on opposite sides of the compass, a sound alarm on the panel, and an electronic circuit, having a pair of contacts, which energizes one of the LED's and the sound alarm in response to the needle being pivoted in one direction to close one of the contacts, and which energizes the other LED and the sound alarm in response to the needle being pivoted in the other direction to close the other contact. The needle is pivoted by strategically positioned bar magnets external of the toy. The electronic circuit can be manually reset or automatically reset after a predetermined period.
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Courts Randall L.
Wilfong Joseph R.
Courts Randall L.
Foycik, Jr. Michael J.
Mancene Gene
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