Method for making flexible duct

Details Method for making flexible duct Method for making flexible duct

1976-08-05

1978-08-01

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156189, 156195, 156425, 156431, B31C 100, B31C 500

Patent

active

041040970

ABSTRACT:
The present invention relates to an apparatus and method for making a flexible duct of wire-reinforced construction made from a plurality of adhesive-coated polymeric tapes. The tapes are simultaneously applied from angularly oppositely disposed directions in conjunction with application of a reinforcement wire to provide a helix construction with overlapping convoluted edges to provide a duct of predetermined length.

REFERENCES:
patent: 3019154 (1962-01-01), Helly-Hansen
patent: 3524779 (1970-08-01), Masters et al.
patent: 3728189 (1973-04-01), Hannes et al.
patent: 3863551 (1975-02-01), Murphy
patent: 3897297 (1975-07-01), Perusse et al.

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