Fluid handling – Systems – Multi-way valve unit
Patent
1986-10-14
1987-12-29
Michalsky, Gerald A.
Fluid handling
Systems
Multi-way valve unit
13762569, F15B 13044
Patent
active
047154071
ABSTRACT:
A fluid flow control valve having a block defining a spool valve chamber and ports communicating with the chamber. A spool valve assembly for selectively controlling flow through the valve includes a spool body having an annular end provided with at least one axially outwardly opening notch. A spool end on the spool body defines a first frustoconical, axially outwardly narrowing outer surface concentrically within the annular end of the spool body, and a second, frustoconical, axially outwardly widening radially outer surface extending axially outwardly from the axial outer end of the first frustoconical surface and axially outwardly of the spool outer end.
REFERENCES:
patent: 4056126 (1977-11-01), Hauser et al.
patent: 4155535 (1979-05-01), Seamone
patent: 4611632 (1986-09-01), Kolchinsky et al.
Bauman Russell E.
Clevite Industries Inc.
Michalsky Gerald A.
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