Apparatus to induce stress into a fiber optic cable to...

Details Apparatus to induce stress into a fiber optic cable to... Apparatus to induce stress into a fiber optic cable to...

2006-09-19

2006-09-19

Healy, Brian M. (Department: 2883)

Optical waveguides

Optical waveguide sensor

C385S013000, C385S100000, C340S398100, C340S550000, C340S555000

Reexamination Certificate

active

07110625

ABSTRACT:
A stress inducing device for inducing stress into a fiber optic cable is useful for detecting a person attempting to breach a security fence by climbing over the security fence. A stress inducing device is attached adjacent to a top of each fence post of the security fence. A fiber optic cable runs adjacent to a top of the security fence, and passes through each of the stress inducing devices. Once activated, a pressing member of the stress inducing device will pinch the fiber optic cable therein causing an alarm. The stress inducing device will be activated if a person leans a ladder against the fiber optic cable or the stress inducing device itself, or if a person attempts to open or tamper with the stress inducing device.

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