Illumination – Guard means
Patent
1997-06-16
1999-10-05
Sember, Thomas M.
Illumination
Guard means
362542, 439502, 439236, H01R 3302
Patent
active
059612070
ABSTRACT:
A trouble light apparatus including a cage in which low voltage (e.g. 12 volt) light(s) are housed, a handle connected to the cage which manual switches are mounted and in which a transformer is secured is disclosed. The handle has a primary cord running from it to a plug that may be fitted into a mating plug. Additionally, a number of secondary cord and mating plugs are provided, one of which can be received in a 12-volt dc cigarette lighter socket, another of which can be received into the conventional ac power (e.g. 120/240 volt ac) receptacle and another of which may have alligator clips for attachment to a battery (e.g. 12 volt automobile battery). The secondary cords contain two electrical lines and the primary cord has three lines. The plugs allow connection to two of the three lines with different pairs of lines connected for the high voltage ac source and the low voltage source. The primary cord pairs from the high voltage ac source and is coupled to the input of the transformer and whose output is connected to the lamp sockets when the switches are operated to select that arrangement. The primary cord pairs from the low voltage source and is connected to the lamp sockets when the switches are operated to select that arrangement. Thus, the trouble light may be powered from either low voltage ac or dc or higher voltage ac by selecting and attaching the correct secondary cord unit to such a source and to the plug of the primary cord and operating the switches on the handle. Two embodiments are disclosed, one for a large 12 volt screw-socket lamp, and a second using a plurality of automobile bayonet base lamps connected either in series or in parallel by manual switches.
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Kinney Richard G.
Sember Thomas M.
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