EP 0252891 A1 19880113 - Exhalation valve device for protective face mask.
Title (en)
Exhalation valve device for protective face mask.
Title (de)
Ausatmungsventil für Schutzmasken.
Title (fr)
Soupape d'exhalation pour masque à gaz.
Publication
Application
Priority
SE 8602962 A 19860703
Abstract (en)
The present invention relates to an exhalation valve device for use in protective masks, comprising a neck portion (2) for sealing connection to the protective mask, and a valve portion (3) connected to the neck portion, said valve portion having at least one valve member permitting the passage of exhaled air, with substantially no change of direction.
IPC 1-7
IPC 8 full level
A62B 18/10 (2006.01)
CPC (source: EP)
A62B 18/10 (2013.01)
Citation (search report)
- [X] US 1853373 A 19320412 - RANDOLPH MONRO
- [Y] FR 2367968 A1 19780512 - MOTOBECANE ATELIERS [FR]
- [A] GB 660095 A 19511031 - PAUL CHARBONNEL, et al
- [A] DE 738391 C 19430813 - AUERGESELLSCHAFT AG
- [A] US 1326966 A 19200106
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL
DOCDB simple family (publication)
EP 0252891 A1 19880113; FI 872916 A0 19870701; FI 872916 A 19880104; NO 872761 D0 19870701; NO 872761 L 19880104; SE 454136 B 19880411; SE 8602962 D0 19860703
DOCDB simple family (application)
EP 87850216 A 19870701; FI 872916 A 19870701; NO 872761 A 19870701; SE 8602962 A 19860703