Oscillator with blinking light emitting diode for ornamental rin

Details Oscillator with blinking light emitting diode for ornamental rin Oscillator with blinking light emitting diode for ornamental rin

1975-06-16

1976-10-12

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

63 15, 240 64W, 240 59, 250552, 315200A, 315238, 315241R, 331113R, 340331, F21V 3300, H05B 3702, A44C 900

Patent

active

039861449

ABSTRACT:
An ornamental ring having a flashing capacity controlled by a minute electrical circuit incorporating one or more light-emitting diodes which are confined in the gem-display region of the ring, is disclosed. A time delay, capacitor-resistor arrangement governs the activation and deactivation of a pair of transistors whose function is to cause the light-emitting diodes to alternately flash or blink in substantially identical intervals.

REFERENCES:
patent: 3240989 (1966-03-01), Grunwaldt
patent: 3696311 (1972-10-01), Oushige et al.
patent: 3803515 (1974-04-01), Carlson
patent: 3901121 (1975-08-01), Kleiner

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