EP 0500420 A1 19920826 - Filter cartridge.

Title (en)

Filter cartridge.

Title (de)

Filterpatrone.

Title (fr)

Cartouche filtrante.

Publication

EP 0500420 A1 19920826 (FR)

Application

EP 92400369 A 19920210

Priority

FR 9101697 A 19910213

Abstract (en)

The filter cartridge (16) comprises two coaxial cylindrical filter surfaces (22) and (24) made from a membrane covered with a layer of expanded polytetrafluoroethylene (PTFE). The filter surfaces (22) and (24) are firmly fixed together at their base (27) and (29) by a radial wall (36) and the central filter surface (24) is closed by a disc (38). A tie rod (40) stresses a ring (26) which is firmly fixed to the peripheral filter surface (22) bearing in a sealed manner against the wall (30) of a suction device. The peripheral filter cartridge (22) is lined with a retaining grid (44) on the output side of the filter. The filter cartridge (16) may be used in a household and/or industrial vacuum cleaner. <IMAGE>

Abstract (fr)

La cartouche filtrante (16) comporte deux surfaces filtrantes cylindriques (22) et (24) coaxiales réalisées à partir d'une membrane recouverte d'une couche en polytétrafluoréthylène (PTFE) expansé. Les surfaces filtrantes (22) et (24) sont solidarisées à leur base (27) et (29) par une paroi radiale (36) et la surface filtrante centrale (24) est fermée par un disque (38). Un tirant (40) sollicite un anneau (26) solidaire de la surface filtrante périphérique (22) en appui étanche sur la paroi (30) d'un dispositif d'aspiration. La cartouche filtrante périphérique (22) est doublée d'une grille de maintien (44) côté sortie du filtre. La cartouche filtrante (16) est utilisable dans un aspirateur domestique et/ou industriel. <IMAGE>

IPC 1-7

A47L 9/14; B01D 47/02

IPC 8 full level

A47L 7/00 (2006.01); A47L 9/12 (2006.01)

CPC (source: EP)

A47L 7/0028 (2013.01); A47L 7/0042 (2013.01); A47L 9/127 (2013.01)

Citation (search report)

[A] DE 473974 C 19290322 - FISKER & NIELSEN AS
[A] DE 1507827 A1 19700102 - HARTMANN AG MASCHF
[A] DE 1507866 A1 19710527 - SANDER GUENTER
[A] DE 3444387 A1 19850711 - HR TEXTRON INC [US]
[A] DE 1948837 A1 19700409 - ICI LTD
[A] AT 271401 B 19690610 - SUEDDEUTSCHE KALKSTICKSTOFF [DE]
[A] EP 0218317 A2 19870415 - BEARD HAROLD J [US], et al
[A] EP 0005599 A1 19791128 - VIRGINIA CHEMICALS INC [US]

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 0500420 A1 19920826; FR 2672511 A1 19920814

DOCDB simple family (application)

EP 92400369 A 19920210; FR 9101697 A 19910213