Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Periodic
Patent
1985-01-09
1985-10-22
Scott, J. R.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Periodic
74568R, 200 38FB, 200 38C, 200 38D, 335 89, 335 93, 250200, 368 62, 368 85, 368184, 368327, H01H 4300, G05B 1906, G04C 2300, G04C 2100
Patent
active
045491542
ABSTRACT:
A switching control device having a plurality of displaceable fingers programmable for controlling a sequence of switching operations in a time-controlled system has a magnetic element for exerting a magnetically retentive force on displaced fingers to hold the displaced fingers in displaced or programmed position, and permitting easy release of a displaced finger upon cancellation of a program so that the finger can return to an unprogrammed neutral position. The fingers may be mounted in a control disc having a permanent magnet or an electromagnet, the control disc functioning as a magnetic yoke, or the fingers themselves may be magnetic.
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Dieter Graesslin Feinwerktechnik
Scott J. R.
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