Double-walled flexible tubing product with helical support bead

Details Double-walled flexible tubing product with helical support bead Double-walled flexible tubing product with helical support bead

1996-12-05

1998-12-08

Walberg, Teresa J.

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

392476, 392480, 219528, 219535, F24H 110

Patent

active

058482237

ABSTRACT:
A flexible double-walled plastic tubing product includes a helically wound support bead between inner and outer walls, and an helically wrapped electrical resistance heating conductor is disposed adjacent to the inner wall in good heat transfer relation to fluid flow within the tubing product. Fluid flow within the tubing product is insulated against heat loss to ambient by the helical support bead and a trapped "dead-air" space between the walls of the tubing product. Apparatus and method for making the tubing product are disclosed.

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"The Clear Solution for a Complex Problem," Tigerflex.RTM. 2001 Series, Specification, Undated, Kuriyama of America, Inc., Elk Grove Village, IL.

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