Tamperproof magnetic switch assembly

Electricity: magnetically operated switches – magnets – and electr – Permanent magnet-actuated switches

Reexamination Certificate

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C335S206000, C335S207000

Reexamination Certificate

active

11203497

ABSTRACT:
An improved magnetic switching assembly for detecting relative movement between first and second members, the switching assembly including a flux directing device for channeling a majority of applied magnetic flux away from a shiftable body such that an externally applied magnetic field cannot be used to defeat the magnetic switch assembly. The improved magnetic switching assembly also including at least one tamper switch to detect application of an external magnetic field.

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patent: 2003/0052780 (2003-03-01), Buckely

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