Valves and valve actuation – Electrically actuated valve – Having element dimensionally responsive to field
Reexamination Certificate
2006-09-01
2008-12-30
Fristoe, Jr., John K (Department: 3753)
Valves and valve actuation
Electrically actuated valve
Having element dimensionally responsive to field
C310S026000
Reexamination Certificate
active
07469878
ABSTRACT:
A magnetostrictive valve assembly includes a housing that defines a passage with a seat being formed therein. A magnetically-biased and axially-compressed magnetostrictive assembly slidingly fitted in the passage is configured as a hollow and open-ended conduit adapted to support a flow of a fluid therethrough. Current-carrying coil(s) disposed about the passage in the region of the magnetostrictive assembly generate a magnetic field in the passage when current flows through the coil(s). A hollow valve body with side ports is coupled on one end thereof to an axial end of the magnetostrictive assembly. The other end of the valve body is designed to seal with the seat formed in the housing's passage when brought into contact therewith.
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Bergen Peter J. Van
Fristoe, Jr. John K
McGroary James J.
The United States of America as represented by the Administrator
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