US PATENT SUBCLASS 72 / 60
.~ Using fixed die

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

54  DF  BY APPLICATION OF FLUENT MEDIUM, OR ENERGY FIELD {4}
60.~ Using fixed die {2}
61  DF  .~.~> Expanding hollow work {1}
63  DF  .~.~> Utilizing diaphragm between fluid and work

DEFINITION

Classification: 72/60

Using fixed die:

(under subclass 54) Subject matter comprising a step of, or means for, limiting or restraining the movement of work subjected to deforming force by passive or stationary

work-shape-imposing structure.

(1) Note. Compare Die* in the Glossary; for this subclass the die should be undriven and should have a definite shaping or reshaping effect on the engaged work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

57+, for an actuated tool or die in combination with fluid pressure acting on work.