Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1987-12-17
1989-05-30
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
343895, G08B 1314, H01Q 136
Patent
active
048355240
ABSTRACT:
A resonant circuit which forms part of a security tag for use in an electronic security system includes a fusible link which opens the circuit in response to radio frequency at the resonant frequency. The fusible link opens at a lower signal intensity than otherwise, because the substances of which it is made include at least one accelerator that promotes the fuse action.
REFERENCES:
patent: 3967161 (1976-06-01), Lichtblau
patent: 4567473 (1986-01-01), Lichtblau
patent: 4689636 (1987-08-01), Tait et al.
patent: 4728938 (1988-03-01), Kaltner
Gill Peter L.
Lamond Lee T.
Checkpoint System, Inc.
Mullen Jr. Thomas J.
Stapler Alfred
Swann III Glen R.
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