US PATENT SUBCLASS 29 / 899
.~ Ball making
Current as of:
June, 1999
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29 /
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METAL WORKING
592
DF
METHOD OF MECHANICAL MANUFACTURE
{54}
899
.~ Ball making {1}
899.1
DF
.~.~
> Hollow ball
DEFINITION
Classification: 29/899
Ball making:
(under subclass 592) Process for manufacturing a spheroid element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1.22, for bullets or shot making.
34, for plural diverse manufacturing apparatus used for ball making.
413, for process of obtaining plural pieces by breaking through weakened portion.
417, for process of obtaining plural pieces by dividing sequentially from leading end.
898.069, for process of manufacturing a spheroid element for use in a anti-friction bearing.
SEE OR SEARCH CLASS
72, Metal Deformation,
365, for "rolling" type process.
148, Metal Treatment, directed to particular operations defined therein.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
15, for spheroiding or rounding of solid particles.
451, Abrading,
49+, for a method of ball grinding.
