Fluid conduit arrangement

US9334777B2 · kind B2 · utility

Assignee

• Hartmann Controls, Inc. · US

Inventors

• Henry Guenther · Cross Lake, CA
• Mark Blumreiter · Waukesha, US

Key dates

• Filing date: Oct 22, 2013
• Grant date: May 10, 2016
• Expiry date: May 19, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/4643
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A fluid conduit arrangement includes a reservoir containing a pressurized gas therein. An outer rigid conduit in communication with the reservoir contains a first working fluid under pressure from the pressurized gas within a closed system defined by the reservoir and the outer rigid conduit. An inner flexible conduit is provided for conducting a second working fluid therethrough upon application of a supply pressure. The inner flexible conduit is disposed within the outer rigid conduit, and is subjected to the pressurized first working fluid in surrounding relationship therewith. Relative differences between the pressurized first working fluid and the second working fluid enable the inner flexible conduit to either expand and permit free flow of the second working fluid therethrough, or collapse and evacuate flow of the second working fluid therefrom.