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US 2020/0047439 A1Published application
Extensible corrugated tube and respective method for manufacturing
AssigneeAdega S.R.L. Unipersonale
InventorsLuigino CANEVA, Gianmarco CANEVA
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Abstract
An extensible corrugated hose comprises a first bearing layer (1) in a elastically extensible first polymeric material, a reinforcement (2) wound on said first layer (1), a stabilizing second layer (3) in an elastically extensible second polymeric material covering the reinforcement (2) for defining a corrugated single tubular body (4) with the first layer (1), a coating third layer (5) placed on the second layer (3) for covering the corrugated single tubular body (4).
Claims12
An extensible corrugated hose, comprising:
- a first bearing layer (1) in a elastically extensible first polymeric material;
- a reinforcement (2) wound on said first layer (1);
- a stabilizing second layer (3) in an elastically extensible second polymeric material covering said reinforcement (2) for defining a single tubular body (4) with said first layer (1);
- characterized in that said single tubular body (4) is corrugated, a coating third layer (5) being further provided and placed on said second layer (3) for covering said corrugated single tubular body (4).
1 more element
A method for manufacturing an extensible corrugated hose (10) comprising the following steps:
- a) making a first layer (1) in an elastically extensible first polymeric material;
- b) positioning of a reinforcement (2) on said inner layer (1);
- c) positioning of a stabilizing second layer (3) in an elastically extensible second polymeric material to cover said reinforcement (2) and defining a single tubular body (4) with said first layer (1);
- d) applying a third coating layer (5) above said second layer (3) to cover said single body (4);
- characterized by comprising a corrugation step e) of said single tubular body (4).
2 more elements
Dependencies are inferred from the claim text.