Patent ID: 9446439
Filing Date: 2016-09-20
CPC Classification: B21C,F01N,F16L

Claim Text:
1. A process for manufacturing a wound hose, the process comprising the steps of: manufacturing a metal wound hose from at least one metal profile strip, the wound hose comprising enmeshed metal turns with inner and outer wall areas lying on different radii with a radial extension component between; upsetting the metal wound hose such that adjacent wall areas of adjacent turns of the wound hose form at least one uninterrupted jacket wall surface; applying, subsequent to said step of upsetting, a ceramic-based coating to the at least one uninterrupted jacket wall surface; curing the coating to form a coated wound hose; and pulling apart, subsequent to said step of curing, the coated wound hose thus formed, whereby adjacent wall areas of adjacent turns are detached from one another and thereby the coating is broken up at partitions.