Method and apparatus for causing electric lamp to flash

Details Method and apparatus for causing electric lamp to flash Method and apparatus for causing electric lamp to flash

1994-09-01

1995-09-19

Pascal, Robert J.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Flashers

315217, 315225, 315125, 315362, 315 77, H05B 3700

Patent

active

054518440

ABSTRACT:
A circuit that includes a latch and an oscillator is attached to a common lamp control switch to cause the lamp to flash when the switch is manipulated in accordance with a prescribed pattern. The flashing draws attention to the lamp and is used, for example, in an emergency. In a first embodiment, the circuit is placed in parallel with the switch. In a second embodiment, the circuit is placed in series with the switch. In both embodiments, the circuit is small enough to fit within an existing switch box.

REFERENCES:
patent: 360124 (1987-03-01), Thomson
patent: 3058032 (1962-10-01), Woodward
patent: 3170050 (1965-02-01), Buturuga
patent: 3728713 (1973-04-01), Alten
patent: 3940657 (1976-04-01), Kasiewicz et al.
patent: 4038582 (1977-07-01), Horwinski
patent: 4114071 (1978-09-01), Thrower, Jr. et al.
patent: 4556863 (1985-12-01), Devitt et al.
patent: 4739187 (1988-04-01), Nelson et al.
patent: 4952906 (1990-08-01), Buyak et al.
patent: 4983960 (1991-01-01), Dunn
patent: 5070327 (1991-12-01), Ellingson

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