Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2006-04-25
2006-04-25
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S213000
Reexamination Certificate
active
07034527
ABSTRACT:
Described are systems of recording piston rod position information in a magnetic layer on the piston rod. A piston rod moving with respect to a cylinder has a magnetically hard layer formed thereon to provide a recording medium. A magnetic pattern is recorded in the magnetically hard layer. A magnetic field sensor senses the recorded magnetic pattern while the piston rod is moving with respect to the cylinder and generates signals in response to the magnetic pattern that are used to determine an instantaneous position of the piston rod.
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Clark C. Bruce
Eckerle Joseph S.
Low Thomas P.
Pelrine Ronald E.
Smith Chris
Guerin & Rodriguez LLP
LeDynh Bot
Rodriguez Michael A.
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