US PATENT SUBCLASS 29 / 888.06
.~.~ Cylinder, cylinder head or engine valve sleeve 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}
888.06.~.~ Cylinder, cylinder head or engine valve sleeve making {1}
888.061  DF  .~.~.~> With liner, coating, or sleeve

DEFINITION

Classification: 29/888.06

Cylinder, cylinder head or engine valve sleeve making:

(under subclass 888) Process wherein the manufactured article is (1) a tube in which a piston moves and where a work is done on the piston by the conversion of various forms of energy into mechanical force and motion as in an internal combustion engine or fluid pump; (2) a cap that serves to close the end of the piston chamber of a reciprocating engine; (3) a cylindrical part especially adapted for fitting inside (1) or (2); or (4) a covering or deposited layer for the inner surface of (1) or (2).

(1) Note. A method of making a cylinder block by diverse manufacturing steps is found in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

888.01, for a process of making an internal combustion engine.