EP 1002493 A3 20000816 - Dust filter
Title (en)
Dust filter
Title (de)
Staubfilterbeutel
Title (fr)
Filtre à poussière
Publication
Application
Priority
DE 29820867 U 19981121
Abstract (en)
[origin: EP1002493A2] The duster filter bag has a bag casing (2) with two flat walls (4, 5) opposed to each other, extending in the bag longitudinal direction and two connecting folding walls (6, 7) connecting the flat walls at the bag sides with each other. The folding walls have respectively a main fold (8, 9) pointing inwards. The folding walls, at least at one side of the main folds (8, 9) between these and the facing flat wall, have at least one auxiliary fold (36-39) parallel to the main folds (8, 9). Two auxiliary limbs (40-47) connected with each other at an auxiliary fold apex (48-51) running inwards. Which at the end of the facing side wall edge (29, 30) run together at the solid base. So that with the extension of the aux. limbs (40-47) are bent, forming flat wall extensions at the flat wall folded edges (27, 28), at the respective flat wall floor ends (23, 24) and form reinforcements of the flat wall floor ends.
IPC 1-7
IPC 8 full level
A47L 9/14 (2006.01)
CPC (source: EP)
A47L 9/14 (2013.01)
Citation (search report)
- [X] FR 1119757 A 19560625 - HOOVER LTD
- [X] DE 3129371 A1 19830217 - VORWERK CO INTERHOLDING [DE]
- [X] GB 1305709 A 19730207
- [X] US 3596443 A 19710803 - GOLDBERG HOWARD ZEV [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 29820867 U1 19990121; EP 1002493 A2 20000524; EP 1002493 A3 20000816
DOCDB simple family (application)
DE 29820867 U 19981121; EP 99115742 A 19990810