US PATENT SUBCLASS 417 / 238
CHANGEABLE BY ASSEMBLY OR DISASSEMBLY


Current as of: June, 1999
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417 /   HD   PUMPS

238CHANGEABLE BY ASSEMBLY OR DISASSEMBLY {1}
239  DF  .~> For reverse drive or flow


DEFINITION

Classification: 417/238

(under the class definition) Apparatus which by relative rearrangement of its parts or by the addition or omission of a part is so changed as to operate in a different way or change its function or enhance its operation in some way.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82, for the combination of a rotary nonexpansible chamber-type pump and a jet pump in which the location of the jet pump is changeable by assembly or disassembly.

236, for pumps convertible to basic subject matter of another class.