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Class 29/2.23 - Including means to handle produced strip or web


Subclass of Class 29 - Metal working
Definition: Apparatus including means to feed or convey the product
No. of patents: 2
Last issue date: 11/08/1994


NumberTitleIssue Date
5361469Apparatus for helical cutting of a flexible tubular sheet of polymeric material
In an apparatus for cutting a tubular film into an elongated strip wherein the tubular film is fed at a given velocity in flattened form from a supply reel to an expansion zone where the film is expanded into a tube, advanced after such expansion along a ...
11/08/1994
5248366Method for helical cutting of a flexible tubular sheet of polymeric material
Flexible tubular film is helically cut into a flat strip by feeding the tubular film in flattened form from a supply source to a film feeding means advancing the flat film tube at a predetermined velocity to a tube expansion zone in which the flat tube is...
09/28/1993
 
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