EP 3932493 B1 20230913 - OXYGEN SELF RESCUE DEVICE AND METHOD FOR AN OXYGEN SELF RESCUE DEVICE
Title (en)
OXYGEN SELF RESCUE DEVICE AND METHOD FOR AN OXYGEN SELF RESCUE DEVICE
Title (de)
SAUERSTOFFSELBSTRETTER UND VERFAHREN FÜR EINEN SAUERSTOFFSELBSTRETTER
Title (fr)
AUTOSAUVETEUR À OXYGÈNE ET PROCÉDÉ POUR UN AUTOSAUVETEUR À OXYGÈNE
Publication
Application
Priority
DE 102020117130 A 20200630
Abstract (en)
[origin: CA3118519A1] An oxygen self-rescuer (100) includes a gas cartridge (110), a mouthpiece (120), a tube (130) connecting the gas cartridge and the mouthpiece, a breathing bag (140) hydrodynamically connected to the gas cartridge and to the tube, and a spring assembly (150) within the breathing bag. The spring assembly includes a spring (153) fastened to the breathing bag and/or to the gas cartridge. The spring assembly has a pretensioned spring state in an unused packed-up state of the oxygen self-rescuer. The spring assembly leaves the pretensioned spring state with an externally triggered transition from the unused packed-up state into a use expanded state of the oxygen self- rescuer such that the spring assembly uplifts the breathing bag and generates a vacuum within the breathing bag. The vacuum draws breathable gas into the breathing bag and prepares the breathing bag for a ventilation of a user of the oxygen self-rescuer.
IPC 8 full level
A62B 7/02 (2006.01)
CPC (source: 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
DOCDB simple family (publication)
EP 3932493 A1 20220105; EP 3932493 B1 20230913; AU 2021204441 A1 20220120; AU 2021204441 B2 20220825; CA 3118519 A1 20211230; CA 3118519 C 20230627; DE 102020117130 A1 20211230; US 2021402220 A1 20211230; ZA 202104349 B 20220629
DOCDB simple family (application)
EP 21180546 A 20210621; AU 2021204441 A 20210629; CA 3118519 A 20210513; DE 102020117130 A 20200630; US 202117357109 A 20210624; ZA 202104349 A 20210624