Method for forming a spiral-wound flexible piping

Details Method for forming a spiral-wound flexible piping Method for forming a spiral-wound flexible piping

1991-12-06

1993-06-29

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Assembling or joining

29429, B21D 3900

Patent

active

052222888

ABSTRACT:
Flexible piping includes a first, spiral-wound band forming an inner winding and a second, spiral-wound band forming an outer winding in covering relationship over the inner winding. Inner and outer spiral-wound bands of insulating material are wound between the inner and outer windings and over the outer winding respectively. An insulating sleeve receives the spiral-wound inner and outer windings and the inner and outer insulating material bands. A method and a machine for forming the flexible piping are also disclosed.

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