The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2026
Filed:
Nov. 23, 2022
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Abstract
A self-closing emergency coupling and detachment device for transporting cryogenic fluid, including two fluid transport pipes that extend in a longitudinal direction and each include, at a connection end, a valve mechanism configured to automatically close the pipe when the connection ends are separated and allow the pipe to be opened when the connection ends are coupled together, the device also including an outer tube that is arranged around each transport pipe and delimits a vacuum space for thermally insulating the transport pipe, the device being configured to delimit a defined sealed dead volume between the coupled connection ends, wherein the device includes a system for draining the dead volume, the draining system being provided with a fluid circuit that is fluidically connected to the dead volume.