US PATENT SUBCLASS 137 / 625.33
.~.~.~ Reciprocating
Current as of:
June, 1999
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137 /
HD
FLUID HANDLING
561 R
DF
SYSTEMS
{32}
625
DF
.~ Multi-way valve unit {12}
625.28
DF
.~.~ Dividing into parallel flow paths with recombining {4}
625.33
.~.~.~ Reciprocating {2}
625.34
DF
.~.~.~.~
> Spool {2}
625.37
DF
.~.~.~.~
> Piston {1}
DEFINITION
Classification: 137/625.33
(under subclass 625.28) Devices wherein the valve has a linear motion to and from flow obstructing position.
