Electrical resistors – Resistance value responsive to a condition – Force-actuated
Reexamination Certificate
2005-06-21
2005-06-21
Easthom, Karl D. (Department: 2832)
Electrical resistors
Resistance value responsive to a condition
Force-actuated
C338S099000, C338S114000, C338S128000
Reexamination Certificate
active
06909354
ABSTRACT:
The cost and complexity of an electronic pressure sensitive transducer are decreased by constructing such a transducer directly on a printed circuit board containing support electronics. Conductive traces are formed on the printed circuit board to define a contact area. A flexible substrate having an inner surface is positioned over the contact area. An adhesive spacer, substantially surrounding the contact area, attaches the flexible substrate to the printed circuit board. At least one resistive layer is deposited on the flexible substrate inner surface. In use, the resistive layer contacts at least two conductive traces in response to pressure applied to the flexible substrate to produce an electrical signal indicative of applied pressure.
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Baker Jeffrey R.
Sanchez Carlos S.
Brooks & Kushman P.C.
Easthom Karl D.
Interlink Electronics, Inc.
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