EP 3814164 A4 20220302 - TUBE TRANSPORTATION SYSTEMS USING A GASEOUS MIXTURE OF AIR AND HELIUM
Title (en)
TUBE TRANSPORTATION SYSTEMS USING A GASEOUS MIXTURE OF AIR AND HELIUM
Title (de)
ROHRTRANSPORTSYSTEME MIT EINEM GASFÖRMIGEN GEMISCH AUS LUFT UND HELIUM
Title (fr)
SYSTÈMES DE TRANSPORT PAR TUBE UTILISANT UN MÉLANGE GAZEUX CONSTITUÉ D'AIR ET D'HÉLIUM
Publication
Application
Priority
US 2018040256 W 20180629
Abstract (en)
[origin: WO2020005273A1] A tubular transportation system is disclosed for transporting one or more passengers or one or more cargos via a capsule along a predetermined route. The tubular transportation system has: (1) a plurality of substantially evacuated tubes arranged along the predetermined route, where each tube is maintained at a pressure that is below atmospheric pressure; and (2) means for maintaining within each tube in the plurality of substantially evacuated tubes, a gaseous composition comprising a mixture of a first percentage, x, of helium and a second percentage, (100-x), of air, and wherein the first percentage, x, of helium is picked based on a predetermined power value and a leak rate associated with the tube.
IPC 8 full level
B60L 13/03 (2006.01); B60L 13/10 (2006.01); B61B 13/08 (2006.01); B61B 13/10 (2006.01); B61B 13/12 (2006.01); B65G 53/04 (2006.01); E01B 25/30 (2006.01)
CPC (source: EP)
B60L 13/03 (2013.01); B60L 13/10 (2013.01); B61B 13/08 (2013.01); B61B 13/10 (2013.01); E01B 25/30 (2013.01)
Citation (search report)
See references of WO 2020005273A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2020005273 A1 20200102; CN 112638693 A 20210409; EP 3814164 A1 20210505; EP 3814164 A4 20220302
DOCDB simple family (application)
US 2018040256 W 20180629; CN 201880097012 A 20180629; EP 18924654 A 20180629