Valves and valve actuation – Electrically actuated valve – Solenoid having plural coils
Patent
1992-04-29
1993-03-16
Michalsky, Gerald A.
Valves and valve actuation
Electrically actuated valve
Solenoid having plural coils
25112916, 25112921, F16K 3108
Patent
active
051937816
ABSTRACT:
An electro-pneumatic valve which includes a spiral coil formed of electrically conductive material bonded to an insulative substrate. A second layer of substrate material is mounted substantially beneath the combination of the spiral coil and insulative substrate. The second layer of substrate has both a recess and an outer edge. There is a first passage communicating between the recess and the other edge. Within the recess is a magnetic armature that is operatively aligned with the spiral coil. There is a second passage communicating between the spiral coil and the recess. There is a magnetically conductive member located below the magnetic armature. The magnetic armature moves in response to electric current passing through the spiral coil to close the second passage.
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Kercher Kevin M.
Michalsky Gerald A.
Milliken Research Corporation
Petry H. William
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