Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1989-12-18
1990-12-18
Goldstein, Herbert
Communications: electrical
Condition responsive indicating system
Specific condition
256 1, 340541, G08B 1312
Patent
active
049789430
ABSTRACT:
A new and improved apparatus and process for continuously forming an intrusion detection barrier coil from a strip of barbed metal tape is provided. The apparatus includes a series of rollers for deforming the central portion of the barbed metal tape into a generally U-shaped configuration, as well as a dispenser for depositing an elastomeric filler material into the U-shaped tape, and a mechanism for feeding a continuous length of vibration-sensitive electrical cable in the elongated, U-shaped tape. Thereafter, the composite assembly of U-shaped barbed tape, elastomeric and electrical cable is continuously forced through a set of opposed rollers so as to roll form the U-shaped section into a generally circular, closed configuration. The composite structure is then bent by a series of offset rollers in a generally horizontal plane to form a helical coil of intrusion detection barbed tape. The subject process is performed in a continuous manner as the strip of barbed tape is advanced through a roll forming station to define the U-shaped central portion of the tape, through the stations wherein the elastomeric filler material and vibration-sensitive cable are fed into the U-shaped central portion of the barbed tape, through the roll forming station wherein the cable and filler material are encased within the barbed tape, and through the edge bending station wherein the composite barbed tape is formed into a helical coil.
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Intrusion Detection Systems by Robert L. Barnard 1981 (pp. 71-74).
"Peristop" Brochure-Bigotec AG, Aaron, Switzerland.
"Guardwire 300 Series" Brochure; Printed in U.K.-Guardwire of Kingsfield Industrial Estate, Derby Road, Wirksworth, Derby DE4 4BG, England-Complete Brochure.
Heinlein Thomas J.
Mainiero John W.
Mainiero Michael R.
Casella Anthony J.
Goldstein Herbert
Hespos Gerald E.
MRM Security Systems, Inc.
Mullen Jr. Thomas J.
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