Stretchable stripwound hose

US8973618B2 · kind B2 · utility

Assignee

• WESTFALIA METALLSCHLAUCHTECHNIK GMBH & CO. KG · DE

Inventors

• Matthias Weiss · Hilchenbach, DE
• Karl-Heinz Münker · Hilchenbach, DE
• Dietmar Baumhoff · Olpe, DE
• Andreas Gerhard · Wenden, DE
• Karsten Schenk · Treysa, DE
• Michael Henkelmann · Hilchenbach, DE
• Oliver Selter · Attendorn, DE
• Stefan Hauk · Hilchenbach, DE

Key dates

• Filing date: Sep 24, 2010
• Grant date: Mar 10, 2015
• Expiry date: Oct 4, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2530/26
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A stripwound hose expandable from a compressed state to a stretched state includes at least two spiral-wound strips having at least three telescoping portions in a direction of a longitudinal axis. The telescoping portions are arranged in axially overlapping relation, when the stripwound hose assumes the compressed state; and extend in axial side-by-side relation, when the stripwound hose assumes the stretched state. The telescoping portions are hooked to one another when being axially stretched.