EP 3759316 A1 20210106 - AIRLOCK WITH A PNEUMATIC ORIFICE FOR THE VACUUM TRAIN SYSTEM
Title (en)
AIRLOCK WITH A PNEUMATIC ORIFICE FOR THE VACUUM TRAIN SYSTEM
Title (de)
SCHLEUSE MIT EINER PNEUMATISCHEN ÖFFNUNG FÜR DAS UNTERDRUCKZUGSYSTEM
Title (fr)
SAS À ORIFICE PNEUMATIQUE POUR SYSTÈME DE TRAIN À VIDE
Publication
Application
Priority
- PL 42474818 A 20180302
- IB 2019051667 W 20190301
Abstract (en)
[origin: WO2019167014A1] The subject of the invention is an airlock with a pneumatic orifice, characterized in that the orifice chamber (5) is located inside the tunnel (1), together with an inactive expansion element (4) made up of a flexible material consisting of an external torus (6) and an internal membrane (7), which is activated by compressed air produced by compressors (10) placed in a housing (5).
IPC 8 full level
E21F 17/107 (2006.01)
CPC (source: EP US)
B61B 13/10 (2013.01 - US); B61K 13/00 (2013.01 - US); E21F 17/107 (2013.01 - EP US)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019167014 A1 20190906; CA 3092461 A1 20190906; CN 112074651 A 20201211; EP 3759316 A1 20210106; PL 243241 B1 20230724; PL 424748 A1 20190909; RU 2020131362 A 20220404; RU 2020131362 A3 20220404; US 2021040851 A1 20210211
DOCDB simple family (application)
IB 2019051667 W 20190301; CA 3092461 A 20190301; CN 201980029818 A 20190301; EP 19718853 A 20190301; PL 42474818 A 20180302; RU 2020131362 A 20190301; US 201916977050 A 20190301