Railing

Details Railing Railing

1988-08-11

1990-05-01

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

350 9629, 340552, G08B 1318

Patent

active

049222287

ABSTRACT:
The present invention relates to a railing selected among hollow railings, grilles, tubes or the like in which a continuous sensor made of an optical fiber extends, which railing is filled with a suitable filling material, the sensor fiber being connected to outside control and/or alarm units to form a complete circuit. The optical fiber has advantageously a numerical aperture (NA) of 0.08.ltoreq.NA.ltoreq.0.5 preferably the following parameters:

REFERENCES:
patent: 4586030 (1986-04-01), Klostermann
patent: 4701614 (1987-10-01), Jaeger et al.

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