Wallet anti-theft device

Details Wallet anti-theft device Wallet anti-theft device

1987-06-15

1988-10-25

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340568, 340574, G08B 1314

Patent

active

047807040

ABSTRACT:
The present invention is similar to the prior art devices in that it is a two part system. One part is a small and elongated magnet which is placed in the wallet. The other part is the electronic circuitry and audio producing device in which the circuit activating switch is held open as long as the wallet with its magnet is in proximity to the second part. When the wallet and the signaling device are separated sufficiently, the magnet no longer holds the activated switch open and the switch closes thus producing the audio signal.

REFERENCES:
patent: 3530451 (1970-09-01), Devine
patent: 3851326 (1974-11-01), Costa
patent: 4090183 (1978-05-01), Miller
patent: 4584571 (1986-04-01), Smit et al.
patent: 4633232 (1986-12-01), Nelson et al.

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