Pressure closing mechanism

Details Pressure closing mechanism Pressure closing mechanism

1995-04-21

1996-09-17

Sipos, John

Package making

Apparatus for forming or partially forming receptacle and...

Forming a receptacle around a mandrel or former and removing...

533773, 53565, 493141, 493164, B65B 102

Patent

active

055557082

ABSTRACT:
A pressure sealing mechanism having a yoke into which a mandrel is positioned while having a carton tube mounted thereon with overlapped end closure panels, the yoke including side walls, a closed outer end wall, oppositely disposed, inwardly extending flanges formed on the inner ends of the side walls, with cooperating slots formed in the mandrel, and an expansible bladder and a pressure pad mounted in the yoke for sealing the panels upon expansion of the bladder by forcing the yoke radially outwardly such that the flanges engage the slots providing a compressive force on the panels.

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