Illumination – Self powered lamp – Having plural lamp bulbs or lamp sockets
Patent
1997-01-27
1997-12-16
Yeung, James C.
Illumination
Self powered lamp
Having plural lamp bulbs or lamp sockets
362102, 362800, 340321, F21L 700
Patent
active
056976950
ABSTRACT:
A signal stick including a handle holding a battery set, a connector connected to the handle by a screw joint to hold a circuit board, a transparent sleeve coupled to the connector, an inner tube mounted within the transparent sleeve and having a bottom end plugged into an annular top open chamber of the connector and a top end made with locating grooves, a negative metal wire rod and three positive metal wire rods respectively hung on the locating grooves of the inner tube within the transparent sleeve and connected to the circuit board, a plurality of LEDs of different colors respectively connected between the negative metal wire rod and the positive metal wire rods, a selector switch mounted on the connector and adapted for turning on a particular color of LEDs, and a manual/auto control switch shifted between an automatic mode to automatically turn on the LEDs in a predetermined order, and a manual mode to let the LEDs be controlled by the selector switch.
REFERENCES:
patent: 2611019 (1952-09-01), Warner
patent: 5036442 (1991-07-01), Brown
patent: 5079679 (1992-01-01), Chin-Fa
patent: 5081568 (1992-01-01), Dong et al.
patent: 5622423 (1997-04-01), Lee
Lin Adam
Lin Kuo-Tsen
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