Flexible tying member for theftproof device

Details Flexible tying member for theftproof device Flexible tying member for theftproof device

1982-11-01

1988-01-05

Sikes, William L.

350 9620, G02B 644

Patent

active

047172355

ABSTRACT:
A flexible tying member for a theftproof device which is adapted to give warning in response to a change in a photo signal transmitted in an optical fiber extending through the flexible tying member. The flexible tying member has a first layer including the optical fiber and at least one electric wire connected to at least one photoelectric element, and a second layer including a reinforcing member. The flexible tying member has a coaxial structure having an inner layer formed by the above first layer, and an outer layer formed by the above second layer, or a parallel structure in which the above first and second layers longitudinally extend parallel with each other.

REFERENCES:
patent: 3660590 (1972-05-01), Conant
patent: 4278835 (1981-07-01), Jackson
patent: 4379289 (1983-04-01), Peek

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