US PATENT SUBCLASS 137 / 270
.~ Unit orientable in a single location between plural positions

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

269  DF  CONVERTIBLE {3}
270.~ Unit orientable in a single location between plural positions {1}
270.5  DF  .~.~> Reversible stop and vent or waste

DEFINITION

Classification: 137/270

(under subclass 269) Apparatus in which a part or a unitary subassembly of parts may be assembled with the remainder of the apparatus in only one location, but plural relative angular positions or orientations with respect thereto are possible with corresponding changes in the mode of operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

329+, for devices in which parts may be shifted to replace a worn area, but without any change in the mode of operation.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

290, for a valve or actuator having plural selective neutral positions.