US PATENT SUBCLASS 53 / 358
.~.~.~.~.~ Helical spring

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

285  DF  CLOSING PACKAGES AND FILLED RECEPTACLES {7}
287  DF  .~ Separate closure applying {17}
329  DF  .~.~ Closure securing means {9}
341  DF  .~.~.~ Die {7}
357  DF  .~.~.~.~ Resilient annulus {1}
358.~.~.~.~.~ Helical spring

DEFINITION

Classification: 53/358

(under subclass 357) Apparatus wherein the torus member is a yielding wire spring coil.

SEE OR SEARCH THIS CLASS, SUBCLASS:

347, for sectional dies utilizing a helical spring coil as a

face member.