Patent ID: 6980108

Claim:
An apparatus for producing a measurable attenuation to at least one light pulse through a fiber optic cable when said fiber optic cable is subjected to a displacement force, said apparatus comprising: a housing having a cable ingress opening and a cable egress opening, said fiber optic cable inserted through said housing through said ingress opening and said egress opening; securing means disposed within said housing for securing a portion of said fiber optic cable relative to a predetermined position within said housing; movable securing means disposed within said housing, said movable securing means allowing a second portion of said fiber optic cable to displace relative to said housing when said fiber optic cable is subject to the displacement force; and light signal attenuation producing means disposed within said housing, said attenuation producing means being responsive to said displacement force, and producing an attenuation to said light pulse wherein said light signal attenuation producing means holds the attenuation even after the displacement force disappears.