Method for twisting strip material

Plastic and nonmetallic article shaping or treating: processes – With twining – plying – braiding – or textile fabric formation

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Details

156156, 264173, 264174, 425112, 425391, B29F 310

Patent

active

041170644

ABSTRACT:
A method for shaping a helical twist in a ribbon of thermoplastic material, as well as a method of making a composite structured article in which a tubular sheet is formed around the twisted ribbon is disclosed.

REFERENCES:
patent: 60067 (1866-11-01), Sanford
patent: 738933 (1903-09-01), O'Donnell
patent: 1201582 (1916-10-01), Hasselberg et al.
patent: 1257435 (1918-02-01), Williams
patent: 2545869 (1951-03-01), Bailey
patent: 2636923 (1953-04-01), Perzel
patent: 2778059 (1957-01-01), Henning et al.
patent: 3441637 (1969-04-01), Davis
patent: 3579623 (1971-05-01), Thomson et al.
patent: 3725178 (1973-04-01), Kleykamp et al.

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