Hazard warning light

Details Hazard warning light Hazard warning light

1990-09-06

1992-06-16

Ng, Jin F.

Communications: electrical

Land vehicle alarms or indicators

External signal light system

340908, 116 63P, B60Q 700

Patent

active

051227819

ABSTRACT:
A hazard warning device for use in place of a conventional flare has a lamp assembly using a long shelf life battery to over-run light emitting diodes under control of a low duty cycle low frequency oscillator. The lamp assembly is built into a lens at one end of a baton-like device, the remainder of which is a stem provided with a strut assembly similar to an umbrella frame which can be deployed between a folded condition with the struts lying against the stem and a deployed condition in which it forms a tripod support for the device.

REFERENCES:
patent: 2144858 (1939-01-01), Smith
patent: 2237536 (1941-04-01), Wells
patent: 2586149 (1952-02-01), Coble
patent: 2972739 (1961-02-01), Opper
patent: 2975412 (1961-03-01), Fuller
patent: 3415476 (1968-12-01), McDermott
patent: 4447802 (1984-05-01), Bose
patent: 4547837 (1985-10-01), Bennett
Wagner, "2-Color LED+Driver", v. 25, No. 19, Oct. 20, 1980.

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