.~ Including flow passage liner (e.g., wear liner)
DEFINITION
Classification: 239/591
(under subclass 589) Apparatus in which the flow passage at or near the nozzle is provided with an insertable flow conducting member usually for replacement or wear resistant reasons.
SEE OR SEARCH THIS CLASS, SUBCLASS:
265.15, for a reaction motor nozzle liner which is at least partially worn away by melting, breaking or corroding.
461+, for insertable rotation controlling means of liner form which serve as anti-turbulence devices.
SEE OR SEARCH CLASS
175, Boring or Penetrating the Earth,
340, and 393 for a liner member in a conduit delivering a fluid to an earth boring or penetrating bit or bit element.
