H - Electricity – 02 – B
Patent
H - Electricity
02
B
H02B 1/044 (2006.01)
Patent
CA 2161019
A signal indicating device mounted on the wall (11) of a cover box or the like. The box encloses electrical components such as contactors, relays and other means for registration of e.g. the operational conditions of an industrial process. A printed circuit indicating or control card (12) is connected between said electrical components and the signal indicating device. The signal indicating device comprises at least one row of signalling lamps (2) mounted on a printed circuit card (1), which is hermetically enclosed in a case (4) with the signalling lamps (2) projecting through holes (6) formed in one of the sides (5) of the case (4). Also mounted on the printed- circuit card (1) are plugs (3) passing through one side of the case (4) so as to project externally thereof and arranged to be connected with corresponding plugs (14) onthe printed circuit indicating or control card (12) via an opening (17) formed in said wall (11) of the cover box (10). The case (4) is arranged to exert a compressing force on a sealing gasket (21) mounted about the opening (17) in the wall (11), in the interconnected position of said plugs (3, 14).
Fetherstonhaugh & Co.
Gustafson Lars
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