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Apparatus and method for opening and transporting a flat-folded tube of flexible material

  • US 4,545,181 A
  • Filed: 10/03/1983
  • Issued: 10/08/1985
  • Est. Priority Date: 11/08/1982
  • Status: Expired due to Term
First Claim
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1. In apparatus for guiding a flat-folded tube of flexible plastic film from a supply source over a spreader mandrel to open the plastic tube whereby the opened tube may be fitted over an object to be packaged or stored therein,wherein the spreader mandrel includes means for conveying the opened plastic tube to and beyond its downstream end, and means for cutting off an opened tube section at the downstream end of the spreader mandrel independently of the location of said object,the improvement comprising an extension piece for said spreader mandrel mounted downstream of said cutting means and providing means for guiding the opened cut tube to the object to be packaged or stored therein with said object being spaced apart from said extension piece, and drive means, operating independently of said conveying means and without any contact between said object and said extension piece, for driving the opened cut tube beyond the extension piece and over the object to be packaged or stored therein.

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