Method of maintaining an uninterrupted warning signal

Details Method of maintaining an uninterrupted warning signal Method of maintaining an uninterrupted warning signal

1986-02-24

1987-09-01

Kyle, Deborah L.

Ammunition and explosives

Pyrotechnics

Flare

102343, 102360, F42B 424, F42B 420

Patent

active

046900594

ABSTRACT:
An emergency flare for road and railway use which changes so a different color during the final stage of illumination, thus warning that burnout is approaching, and thereby allowing time for replacement or other means to warn oncoming traffic.

REFERENCES:
patent: 356135 (1887-01-01), Jordan
patent: 362905 (1887-05-01), Sibley
patent: 617376 (1899-01-01), Warner
patent: 794371 (1905-07-01), Matthew
patent: 1154165 (1915-09-01), Beckwith
patent: 2120580 (1938-06-01), Sherman
patent: 3149566 (1964-09-01), Klinger
patent: 3283717 (1966-11-01), Balch
patent: 4148258 (1979-04-01), Powers

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