US PATENT SUBCLASS 53 / 556
APPARATUS FOR CONTRACTION OF COVER BY STRETCHING OR SHRINKING


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

556APPARATUS FOR CONTRACTION OF COVER BY STRETCHING OR SHRINKING {1}
557  DF  .~> By heat shrinking


DEFINITION

Classification: 53/556

APPARATUS FOR CONTRACTION OF COVER BY STRETCHING OR

SHRINKING:

(under the class definition) Apparatus for associating a cover or cover material with its contents and then drawing the cover or cover material into tight frictional engagement about or against the contents by elastic memory of the cover or cover material.

(1) Note. Included here are devices which stretch a cover to a slightly larger cross section than the contents and then allow the cover to shrink tightly over the contents.

SEE OR SEARCH THIS CLASS, SUBCLASS:

255+, for apparatus including devices which may enter and incidentally stretch a cover receptacle.

441, for corresponding methods.