US PATENT SUBCLASS 29 / 888.023
.~.~.~ Screw or gear type, e.g., Moineau type

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

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
888  DF  .~ Prime mover or fluid pump making {12}
888.02  DF  .~.~ Fluid pump or compressor making {5}
888.023.~.~.~ Screw or gear type, e.g., Moineau type

DEFINITION

Classification: 29/888.023

Screw or gear type, e.g., moineau type:

(under subclass 888.02) Process wherein the driving means or prime mover of the manufactured article is (1) a toothed machine element or a train of such elements, (2) a cylindrical machine element with a helical groove cut into its surface or (3) a part especially adapted for (1) or (2) which is not elsewhere classified.