Composite materials
OwnerDavid Lusseyinventor
Life of this patent
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Abstract
Composite Materials A composite material responsive to mechanical and/or electrical stress comprises at least one substantially non-conductive binder and at least a first electrically conductive filler. The conductivity of the composite material in an unstressed state is related to the conductivity of the at least one substantially non-conductive binder and in a stressed state to the conductivity resulting from the presence of the at least first electrically conductive filler in the composition. The first electrically conductive filler is comprised of magnetite particles in a particle size distribution, and the at least one binder may include an oil, a gel, a wax a gel-wax, gel-ink or mixtures thereof.
Claims25
A composite material responsive to stress selected from the group of mechanical and electrical stress, the composite material comprising at least one substantially non-conductive binder and at least a first electrically conductive filler, wherein the conductivity of the composite material in an unstressed state is related to the conductivity of the at least one substantially non-conductive binder and in a stressed state to the conductivity resulting from the presence of the at least first electrically conductive filler in the composition, wherein the first electrically conductive filler is comprised of magnetite particles in a particle size distribution, and the at least one binder selected from the group comprising an oil, a gel, a wax, a gel-wax, a gel-ink and mixtures thereof.
(canceled)
A sensor comprising a body, the body including a composite material responsive to stress selected from the group of mechanical and electrical stress, the composite material comprising at least one substantially non-conductive binder and at least a first electrically conductive filler, wherein the conductivity of the composite material in an unstressed state is related to the conductivity of the at least one substantially non-conductive binder and in a stressed state to the conductivity resulting from the presence of the at least first electrically conductive filler in the composition, wherein the first electrically conductive filler is comprised of magnetite particles in a particle size distribution, and the at least one binder selected from the group comprising an oil, a gel, a wax, a gel-wax, a gel-ink and mixtures thereof and electrical contacts connected to the body.
Dependencies are inferred from the claim text.