Method of reinforcing flattened tubular film with tape layers

Details Method of reinforcing flattened tubular film with tape layers Method of reinforcing flattened tubular film with tape layers

1978-03-03

1980-07-15

Kittle, John E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156198, 15624412, B29F 310

Patent

active

042126959

ABSTRACT:
A flattened tube of continuous film is opened up by being fed over a mandrel which is floatingly disposed within the tube. As the tube is passing over the mandrel, which serves as a backing, a layer of reinforcing tapes is helically wound thereabout and fixed thereto, whereafter the tube is flattened again. Each side of the tube is then successively provided with a layer of parallel further reinforcing tapes which are anchored by a plastics covering layer that is extruded thereon and pressed thereto.

REFERENCES:
patent: 2723705 (1955-11-01), Collins
patent: 3008862 (1961-11-01), Haine et al.
patent: 3370999 (1968-02-01), Schwarzrock
patent: 3371002 (1968-02-01), Reddeman
patent: 3413169 (1968-11-01), Krings et al.
patent: 3437537 (1969-04-01), Takada
patent: 3444019 (1969-05-01), Van Leeuwen
patent: 3953557 (1976-04-01), Brax et al.
patent: 3957940 (1976-05-01), Schubert et al.

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