Magnetic and electric field shield

Details Magnetic and electric field shield Magnetic and electric field shield

1992-10-19

1994-09-20

Nimmo, Morris H.

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

174106R, 174108, H01B 734

Patent

active

053491335

ABSTRACT:
A magnetic field and electric field shield having an electrically conductive layer and two layers of thin, soft magnetic material wrapped in opposite directions about a common axis. One layer of magnetic material is wrapped in a clockwise direction and the other layer of magnetic material is wrapped in the counter clockwise direction. The electrically conductive layer is grounded and provides a barrier to electric field penetration. The two layers of magnetic material oppositely wrapped provide a barrier to magnetic field penetration. An outer wrapping of material may be used to secure the magnetic wrappings in place. The shield is applicable to electric devices, in particular electrical wires and cables for automotive vehicles and other high current discharge operations.

REFERENCES:
patent: 2576163 (1951-11-01), Weston et al.
patent: 2879318 (1959-03-01), Straube
patent: 4816614 (1989-03-01), Baigrie et al.

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