Title (en)

Method for manufacturing a finely perforated water areator

Title (de)

Verfahren zur Herstellung von feingeschlitzten Wasserbelüftern aus Gummi od. dgl.

Title (fr)

Procédé pour la fabrication d'un aérateur d'eau finement perforé

Publication

EP 1060849 A3 20021204 (DE)

Application

EP 00109321 A 20000430

Priority

DE 19923593 A 19990522

Abstract (en)

[origin: DE19923593A1] Slitting of the material is carried out by constant relative movement between the hardened or vulcanized aerator material and a slitting tool moving on an aligned circular path. An Independent claim is included for the machine carrying out the slitting operation. This has rotating rollers (4, 5) with cutting tools on the outer circumference.

IPC 1-7

B26F 1/20; B26F 1/00; C02F 3/20; B01F 3/04

IPC 8 full level

B26F 1/18 (2006.01); B26F 1/20 (2006.01)

CPC (source: EP)

B26F 1/18 (2013.01); B26F 1/20 (2013.01)

Citation (search report)

• [Y] DE 3731778 A1 19890330 - JAEGER ARNOLD [DE]
• [YX] US 4615671 A 19861007 - BERNAL EUSTAQUIO O [MX]
• [Y] US 4635316 A 19870113 - TOWNE CLINTON G [US], et al
• [Y] US 5151077 A 19920929 - COLE JR WILLIAM R [US], et al
• [AY] US 4934227 A 19900619 - KNORR WINFRIED [US]
• [A] FR 2098500 A5 19720310 - HUREAU JACQUES
• [A] US 4029539 A 19770614 - DOLL BRENDAN L
• [A] US 5804105 A 19980908 - ALLISON WILLIAM [GB]
• [A] GB 2267655 A 19931215 - LANMARK [GB]

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 19923593 A1 20001123; EP 1060849 A2 20001220; EP 1060849 A3 20021204

DOCDB simple family (application)

DE 19923593 A 19990522; EP 00109321 A 20000430