Device for cooling and calibrating helical thermoplastic tube ri

Details Device for cooling and calibrating helical thermoplastic tube ri Device for cooling and calibrating helical thermoplastic tube ri

1981-03-30

1983-12-13

Makay, Albert J.

Heat exchange

Flexible envelope or cover type

425384, 425392, 165 47, F28F 700, A21C 300, A23G 100

Patent

active

044200374

ABSTRACT:
A device is disclosed for cooling or cooling and calibrating a ribbed tubular wall of a thermoplastic material in a deformable state in which the tubular wall has a circular surface and helically extending rib turns projecting from the circular surface at spaced intervals. A cooling chain of a plurality of interconnected cooling cells is mounted between at least two adjacent rib turns, a flexible cooling conduit interconnects the cells which are adapted to pass a coolant therethrough for cooling the adjacent rib turns, and the cells have wall portions contiguously into engaging the adjacent rib turns.

REFERENCES:
patent: 2442443 (1948-06-01), Swallow
patent: 2725218 (1955-11-01), Cuming
patent: 3024496 (1962-03-01), Colombo
patent: 3327039 (1967-06-01), Ruckert et al.
patent: 3430292 (1969-03-01), Bauman et al.
patent: 4017244 (1977-04-01), Vellani

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