Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Reexamination Certificate
2006-09-26
2006-09-26
Dinkins, Anthony (Department: 2831)
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
C361S170000, C361S154000, C361S210000
Reexamination Certificate
active
07113385
ABSTRACT:
For controlling a magnetic flux of an electromagnet with a relay pulling characteristic and at least two stabile levels of values of a magnetic flux in a magnetic guide, controlling pulses of electric current are supplied into a winding of a magnetizing coil with obtaining a pulling force of a moving part of a magnetic guide of the electromagnet at least with one air gap, wherein the magnetic guide is formed at least partially of a magnetically hard material, two short-term pulses having an opposite polarity are supplied into the magnetizing coil on the magnetic guides of the electromagnet, for closing a magnetic circuit and minimization of magnetic resistance of the magnetic guide due, and holding or attracting force is provided until a supply of a second controlling pulse of electric current of the opposite polarity transferring the magnetic guide into a second stabile condition. Also, an electromagnet is proposed for an electromagnetic drive of an executing device.
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Dinkins Anthony
SPB United, Inc.
Zborovsky I.
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