EP 3612278 A1 20200226 - A FILTER CARTRIDGE AND A METHOD OF MANUFACTURING A FILTER CARTRIDGE
Title (en)
A FILTER CARTRIDGE AND A METHOD OF MANUFACTURING A FILTER CARTRIDGE
Title (de)
FILTERPATRONE UND VERFAHREN ZUR HERSTELLUNG EINER FILTERPATRONE
Title (fr)
CARTOUCHE FILTRANTE ET PROCÉDÉ DE FABRICATION D'UNE CARTOUCHE FILTRANTE
Publication
Application
Priority
- GB 201706201 A 20170419
- GB 2018051025 W 20180419
Abstract (en)
[origin: GB2561586A] A respiratory mask filter cartridge through which the airway can be closed for a negative pressure fit-test by squeezing one end of the cartridge. The filter cartridge has first 12 and second 10 frame members pivotally connected together at the other end of the cartridge. A connecting port 16 on the first frame member defines a preferably circular breathing aperture through which air can pass to a mask. A double-sided gasket seal (30, figure 2) has a first seal portion 24 which can seal between the frame members, and a second seal portion 26 on the connecting port to form a seal between the filter cartridge and the mask. The seal portions are formed integrally with each other by means of a single over-moulding process. When the frame members are pinched together the airway is blocked. The second frame member may be an elongate lever with a cover 20 which blocks the breathing aperture. The seal members may be connected by an integral joining strip which extends through a channel 19 in the first frame member, and made from a thermoplastic elastomer rubber resin.
IPC 8 full level
A62B 18/08 (2006.01); A62B 23/02 (2006.01); A62B 27/00 (2006.01)
CPC (source: EP GB)
A62B 18/08 (2013.01 - EP); A62B 23/02 (2013.01 - EP GB); A62B 27/00 (2013.01 - EP)
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)
GB 201706201 D0 20170531; GB 2561586 A 20181024; GB 2561586 B 20220302; EP 3612278 A1 20200226; EP 3612278 B1 20231011; ES 2968275 T3 20240508; PL 3612278 T3 20240226; WO 2018193256 A1 20181025
DOCDB simple family (application)
GB 201706201 A 20170419; EP 18721445 A 20180419; ES 18721445 T 20180419; GB 2018051025 W 20180419; PL 18721445 T 20180419