US PATENT SUBCLASS 29 / 889
.~ Impeller making

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
889.~ Impeller making {7}
889.1  DF  .~.~> Repairing or disassembling
889.2  DF  .~.~> Turbomachine making {3}
889.3  DF  .~.~> Axial blower or fan
889.4  DF  .~.~> Centrifugal blower or fan
889.5  DF  .~.~> Fluid coupling device
889.6  DF  .~.~> Propeller making {1}
889.7  DF  .~.~> Blade making {2}

DEFINITION

Classification: 29/889

Impeller making:

(under subclass 592) Process of manufacturing a device including a rotor (e.g., rotary bladed spindle) for imparting motion in connection with fluid flow.

SEE OR SEARCH CLASS

416, Fluid Reaction Surfaces (i.e., Impellers), for particular fluid flow devices.