Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1990-04-20
1992-04-07
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
340565, 340566, 340666, G08B 1312
Patent
active
051032074
ABSTRACT:
A sensor post has a hollow interior and a semi-rigid surface which flexes in response to an applied force. Sensor bars are mounted to the semi-rigid surface in a cantilevered fashion, and include an intermediate electrically insulated section located inside the interior of the sensor post. The sensor element mounting means is rigidly mounted to a portion of the sensor post which remains essentially stationary during an intrusive event. Sensing elements are made of a flexible semi-conductive sensing material, whose resistance increases when the material is stretched, and are mounted so as to straddle an electrically insulated section of the sensor bars. A signal analysis means detects an increase in the resistance of the sensing elements and generates an alarm. A wire guiding device uses a separator bar shaped into a zig-zag configuration which is provided with a series of apertures forming an axial channel, and a locking rod dimensioned for insertion into the axial channel formed in the separator bar, thereby entrapping the taut wires.
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Information sheet of Vindicator Corporation for a "Locator TW-3000 Taut Wire Fence Alarm".
Kerr Reginald J.
Saubolle Malcolm
Hitek-Protek Systems Incorporated
Swann III Glen R.
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