Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for the reduction of the sag and/or of the varying stress profile of a flattened tubular film web produced by a blown film process

Method and apparatus for the reduction of the sag and/or of the varying stress profile of a flattened tubular film web produced by a blown film process

US Patent 5384080 · Granted Jan 24, 1995

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Device for the extrusion of multi-layer plastic films, boards or tubes2002
Process for the prevention of socalled fish eyes in plastic films manufactured a2000
Procedure for feeding plastic granulate into the intake opening of a plastic ext2000
Apparatus for determining the sag of a running web of material transversely to i1994
Apparatus for controlling the flow of air for external cooling of an extruder tu1994
Process for controlling the degree of orientation of tubular films1993
Process for controlling the degree of orientation of tubular films1993
Method of measuring thickness of extruded films1992