Patent ID: 11862388
Assignee: XTRACTION SCIENCE AND TECHNOLOGY, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 19:
20. An intrinsically safe electromagnetic device comprising:
a ferromagnetic core including at least three arms that are angularly displaced from one another;
at least first, second and third safe coils that are each wound about the at least three arms of the ferromagnetic core and respectively electrically connected to first, second and third independent electrical power supplies to form respective first, second and third intrinsically safe circuits with each of the first, second and third independent electrical power supplies having a maximal voltage and a short-circuit current under a limit ignition curve corresponding to a total equivalent inductance of the respective first, second and third safe coils, there existing no electrical connection between the first, second and third safe coils; and
a plurality of insulators that electrically insulate the first, second and third safe coils from the first, second and third arms and that insulate the first, second and third safe coils from one another.