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Title: Conductive fabric seal

Disclosed are several examples of a system and method for detecting if an article is being tampered with. Included is a covering made of a substrate that is coated with a layer of an electrically conductive material that forms an electrically conductive surface having an electrical resistance. The covering is configured to at least partially encapsulate the article such that the article cannot be tampered with, without modifying the electrical resistance of the electrically conductive surface of the covering. A sensing device is affixed to the electrically conductive surface of the covering and the sensing device monitors the condition of the covering by producing a signal that is indicative of the electrical resistance of the electrically conductive surface of the covering. A measured electrical resistance that differs from a nominal electrical resistance is indicative of a covering that is being tampered with and an alert is communicated to an observer.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1349678
Assignee:
UT-Battelle, LLC ORNL
Patent Number(s):
9,612,219
Application Number:
14/823,013
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2015 Aug 11
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

Wheatstone-Thomson Combined Electrical Measuring Bridge
patent, February 1972

Intrusion warning wire-lattice, and method and device for manufacturing same
patent, December 1985

Security and protection panel
patent, July 1986

Screen for burglar alarms and method of making the same
patent, March 1991

Conductive polymer coated fabrics for chemical sensing
patent, October 1997

Method of making a flexible closure incorporating an alarm system
patent, October 1997

Changing Indicia in an electronic tag when tampered with
patent, December 1999

Conductive security article and method of manufacture
patent, February 2000

Detector constructed from fabric having planes with differing conductance
patent, August 2002

Detector contructed from fabric
patent, September 2002

Resistance measurement
patent, February 2004

System and device for detecting object tampering
patent, September 2007

Sample resistance measurement device
patent, April 2008

Tamper detection system
patent, October 2009

Anti-tampering security material
patent, January 2010

Tamper respondent enclosure
patent, July 2011

Energy weapon protection fabric
patent, August 2011

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