Quick-release Johnston coupling

US11525538B2 · kind B2 · utility

Assignee

• NEXANS · FR

Inventors

• Holger Schulz · Frankfurt, DE
• Patrick Weber · Alsdorf, DE

Key dates

• Filing date: Dec 22, 2020
• Grant date: Dec 13, 2022
• Expiry date: Jun 9, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L2201/20
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A plug-in coupling for connecting a first double-walled vacuum-insulated cryogenic line to a second. The plug-in coupling has a coupling plug and a coupling socket. The coupling plug can be plugged into the coupling socket, these being retained in a plugged-together state by fixing means. A guide column is arranged on the coupling plug or the coupling socket. The guide column has arranged on it elastic means which, in the assembled state of the plug-in coupling, are subjected to stressing and which subject the coupling plug and/or coupling socket to an elastic force which strives to release the coupling plug and coupling socket from one another as soon as the fixing means no longer hold the coupling plug and coupling socket together. The elastic energy stored in the elastic means ensures that, in the event of an emergency, the coupling plug and coupling socket are quickly released from one another.