Valves and valve actuation – Electrically actuated valve – Remote or follow-up control system for electrical actuator
Reexamination Certificate
2005-04-05
2005-04-05
Keasel, Eric (Department: 3754)
Valves and valve actuation
Electrically actuated valve
Remote or follow-up control system for electrical actuator
C251S065000, C137S554000
Reexamination Certificate
active
06874750
ABSTRACT:
An electromagnetic actuator that detects the position or speed of a drive unit, a valve drive unit and a position or speed sensor that employs the electromagnetic actuator are provided. In the electromagnetic actuator, a magnetic flux generator generates and distributes the magnetic flux. When the magnetic flux changes because of movement of a movable unit, a magnetic path is formed in a magnetic path component that is provided along the direction of movement of the movable unit. The magnetic path passes through a magnetic component. The magnetic flux distributed to the magnetic component is then detected.
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Keasel Eric
Mikuni Corporation
Wenderoth , Lind & Ponack, L.L.P.
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