Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2005-12-20
2005-12-20
Michalsky, Gerald A. (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C137S625480, C251S900000
Reexamination Certificate
active
06976506
ABSTRACT:
A body element for a spool valve is provided that includes a body having an inner surface that defines an internal valving chamber having a longitudinal axis, and at least one transverse surface to the longitudinal axis. The transverse surface has at least one port comprising an annular flow passage, an intermediate flow passage and an outer flow passage extending outward from and in fluid communication with the inner surface of the internal valving chamber.
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Headley Thomas R.
Towne Lloyd I.
Ingersoll-Rand Company
Michael & Best & Friedrich LLP
Michalsky Gerald A.
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