Pressurized security barrier and alarm system
Patent
·
OSTI ID:35045
A security barrier for placement across a passageway is made up of interconnected pressurized tubing made up in a grid pattern with openings too small to allow passage. The tubing is connected to a pressure switch, located away from the barrier site, which activates an alarm upon occurrence of a pressure drop. A reinforcing bar is located inside and along the length of the tubing so as to cause the tubing to rupture and set off the alarm upon an intruder`s making an attempt to crimp and seal off a portion of the tubing by application of a hydraulic tool. Radial and rectangular grid patterns are disclosed. 7 figures.
- Research Organization:
- Lockheed Martin Energy Syst Inc
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5,406,258/A/
- Application Number:
- PAN: 8-233,677
- OSTI ID:
- 35045
- Country of Publication:
- United States
- Language:
- English
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