Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-09-20
2011-11-15
Mehmood, Jennifer (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S660000, C340S664000, C324S691000, C324S713000, C073S779000, C073S776000
Reexamination Certificate
active
08059008
ABSTRACT:
A cementitious compound provides a brittle undercoat for making a surface-mounted crack sensor on a surface. A low percent elongation and low tensile strength of the cementitious compound have proven valuable in ensuring that cracks in the underlying surface are transmitted through the undercoat so that a trace of conductive ink or paint on the undercoat more reliably detects the crack.
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Davis Jason E. J.
Fan Hongmin
Mehmood Jennifer
National Research Council of Canada
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