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US 12,163,613 B2Granted
Hose
AssigneeDdc Engineering B.V.
InventorsDirk Knol, Cornelis Van Barneveld
Life of this patent
Estimating the term…
Abstract
A hose includes a tubular section having an outer tube and an inner tube. The inner tube forms a liner for the outer tube. Apart from being connected by connecting means near both ends of the tubular section, the inner tube is unconnected to said outer tube.
Claims15
A hose, comprising:
- a tubular section comprising an outer tube and an inner tube,
- wherein the inner tube forms a liner for the outer tube;
- wherein, except for the inner tube being connected by a connector near both ends of the tubular section, the inner tube is unconnected to the outer tube;
- wherein the connector at each end of the tubular section comprises an inner tube flange, which is attached to and extends around the inner tube near an outer end thereof, and an outer tube flange, which is at an outer end of the outer tube;
- wherein the inner tube flange is releasably connected to the outer tube flange;
- where the inner tube flange of at least one of the connectors is a removable inner tube flange comprising two or more separate circular flange sections which together form a circular flange when the flange sections are connected;
- wherein the removable inner tube flange is releasably attached to the inner tube, such that, when the removable inner tube flange is removed from the inner tube, the inner tube is movable in an axial direction out of the outer tube;
- and
- wherein the inner tube is provided with a stepped portion which prevents axial movement of the removable flange towards the respective flange to which the inner tube is attached.
6 more elements
Dependencies are inferred from the claim text.