Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1987-05-19
1988-09-13
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335128, 335276, H01K 714
Patent
active
047712538
ABSTRACT:
An operation indicating device for electromagnetic relay which comprises a working member interlockable with an armature of an electromagnetic relay and extending into a space above a yoke, and an indicating member coupled to the working member and having an axis rotatably supported in the space above the yoke, the indicating member having a recognizable indicating portion and being rotatable by the working member interlocking with the armature during the operation of the armature, the indicating portion of indicating member thus rotated arriving at a position corresponding to an indication window formed in a case cover.
When the armature is activated, the working member, interlockable with armature, is activated and the indicating member coupled to the working member is rotated around a supporting shaft serving as the fulcrum. The indicating portion of the indicating member moves to a position located immediately below an indication window formed in the case cover and the operation of the electromagnetic relay can be visibly confirmed.
REFERENCES:
patent: 3083359 (1963-03-01), Smith
Kasama Toshiyuki
Sasaki Naruhito
Tsujimura Shigeru
Watanabe Toshio
Harris George
IDEC Izumi Corporation
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