Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1986-06-30
1988-04-19
Swisher, Nancy A. B.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428 40, 428349, 174 92, 174DIG8, 138110, 138128, 138170, 156 86, F16L 5700, C09J 702
Patent
active
047388838
ABSTRACT:
A heat shrinkable closure is disclosed having a central section which has been hot stretched and cooled while in stretched condition sandwiched between a pair of unstretched end sections and in which one end section has a tapered grooved extension.
REFERENCES:
patent: 3412891 (1968-11-01), Bastone et al.
patent: 3959052 (1976-05-01), Stanek
patent: 3973064 (1976-09-01), Paine
patent: 4153747 (1979-05-01), Young et al.
patent: 4378393 (1983-03-01), Smuckler
patent: 4521470 (1985-06-01), Overbergh et al.
Bozzelli Beth A.
Sigmaform Corporation
Swisher Nancy A. B.
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