Apparatus for producing corrugated tube

Details Apparatus for producing corrugated tube Apparatus for producing corrugated tube

1995-10-27

1997-09-02

Johnstone, Adrienne C.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

156189, 156195, 15624415, 156498, 425366, 425369, B29C 4788, B29C 5322, B29C 5362, B29C 5372

Patent

active

056627645

ABSTRACT:
An apparatus for producing a corrugated tube contains a roller assembly composed of plural rollers having plural convexed rings, respective convexed rings forming a helix as a whole so as to substantially form a single rotating shaft body, and a synthetic resin supplier for supplying a strip of synthetic resin onto the roller assembly. The pitches between the convexed rings, and the diameters and the widths of the convexed rings are so constructed as to be gradually decreased in accordance with the contraction percentage of the synthetic resin. The apparatus is provided with a follower ring on a roller valley portion between the convexed rings, the follower ring being rotatable in response to circumferential speed of the apex of the convexed ring.

REFERENCES:
patent: 2398876 (1946-04-01), Bailey
patent: 3532580 (1970-10-01), Kanao
patent: 4292113 (1981-09-01), Hirata
patent: 4575400 (1986-03-01), Ueda et al.

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