US PATENT SUBCLASS 29 / 888.012
.~.~.~ Rotary or radial engine making


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}
888.01  DF  .~.~ I.C. (internal combustion) engine making {2}
888.012.~.~.~ Rotary or radial engine making


DEFINITION

Classification: 29/888.012

Rotary or radial engine making:

(under subclass 888.01) Process of manufacturing an I.C. engine wherein (1) the thermodynamic cycle is carried out in a mechanism relying entirely upon circular movement about an axis without any reciprocating components such as a piston, crankshaft or connecting rod; (2) the cylinders are arranged like the spokes of a wheel or at equiangular intervals around a crankshaft; or (3) a component, part of subcombination of (1) or (2) which are not elsewhere specifically provided for.

(1) Note. Stern engine making and stem turbine making are not included in this subclass since they are not internal combustion engines.