Package making – Methods – Forming a cover adjunct or application of a cover adjunct to...
Patent
1977-08-19
1979-02-27
Sipos, John
Package making
Methods
Forming a cover adjunct or application of a cover adjunct to...
53419, 53133, 531393, B65B 6118
Patent
active
041411951
ABSTRACT:
A method and apparatus for forming a heat-sprinkable secondary closure for a container are disclosed, wherein filled, lidded containers moved by conveyor means are delivered to a secondary closure formation and application station, where a band of heat-shrinkable thermoplastic adhesive tape is wrapped around each container such that the tacky side of the tape faces the container, with tape overlapping the seam formed between the periphery of the lid and the sidewall of the container. The tape band is severed from the tape supply during wrapping, and heater means located adjacent the container shrinks the tape into compressive engagement with the periphery of the lid and the sidewall of the container as the tape is wrapped thereabout. Integral gripping tabs are formed at spaced positions in the tape prior to wrapping of the tape band and shrinking thereof, and once the band is shrunk into tight adhesive engagement with the container, the tab is positioned near an outer overlapping end of the band to provide convenient means for removal of the tape from the container. The end of the tape beyond the gripping tab is adhesively secured to an underlying portion of the band to retain the gripping tab in place.
REFERENCES:
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patent: 3905859 (1975-09-01), Patterson
Mueller Martin
St. Clair David
Click Myron E.
Mensing Harold F.
Owens--Illinois, Inc.
Sipos John
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