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Class Information
Number: 137/270.5
Name: Fluid handling > Convertible > Unit orientable in a single location between plural positions > Reversible stop and vent or waste
Description: Devices comprising stop and vent or waste valve units having means to associate the waste port with either principal port.

Patents under this class:

Patent Number Title Of Patent Date Issued
5775199 Rotary valve and directional valve combination Jul. 7, 1998
4974625 Four mode pneumatic relay Dec. 4, 1990
4848392 Solenoid on-off valve Jul. 18, 1989

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