Quick thread wrapping machine stretch head and wrapping film met

Details Quick thread wrapping machine stretch head and wrapping film met Quick thread wrapping machine stretch head and wrapping film met

1997-11-06

1999-01-26

Johnson, Linda

Package making

Methods

Conforming by stretching or shrinking of cover over contents

53556, B65B 5300

Patent

active

058626476

ABSTRACT:
A wrapping machine stretch head comprises a pair of tension rollers having first ends mounted upon a base plate and second ends mounted within separate and independent brackets such that the second ends of the tension rollers are not connected to each other and define an axially open space therebetween. In this manner, when wrapping film is to be threaded or routed between and around the tension rollers, the wrapping film is able to be inserted into the axially open space in an axially oriented mode. The rotary drive system for the tension rollers is also mounted upon the base plate and not within an upper frame member as is characteristic of conventional wrapping machine stretch heads.

REFERENCES:
patent: 4302920 (1981-12-01), Lancaster et al.
patent: 4497159 (1985-02-01), Lancaster
patent: 4914891 (1990-04-01), Suolahti
patent: 5287678 (1994-02-01), Leitzel
patent: 5414979 (1995-05-01), Moore et al.
patent: 5447008 (1995-09-01), Martin-Cocher
patent: 5477658 (1995-12-01), Berger et al.

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