EP 1693509 A1 20060823 - Press roll surveillance
Title (en)
Press roll surveillance
Title (de)
Presswalzenüberwachung
Title (fr)
Surveillance d'un rouleau de presse
Publication
Application
Priority
DE 102005007835 A 20050221
Abstract (en)
Monitoring a press roll (4) in a machine for producing or finishing a fibrous web (1), where the press roll comprises a rotating cylinder (2) supported on a static pressure element (3) and the gap between the cylinder and the pressure element is lubricated with a liquid lubricant, comprises monitoring the state of the cylinder with optical and/or thermographic sensors that send a fault signal to a control unit (10) in the event of leakage or impending leakage, where either one sensor monitors the surface of the web or a tracer is added to the lubricant to improve optical leak detection.
IPC 8 full level
D21F 3/02 (2006.01); D21G 9/00 (2006.01); G01M 3/04 (2006.01); G01M 99/00 (2011.01)
CPC (source: EP)
B30B 15/0088 (2013.01); D21F 3/0218 (2013.01); D21G 9/0036 (2013.01); B30B 3/04 (2013.01)
Citation (search report)
- [XY] EP 1484442 A1 20041208 - VOITH PAPER PATENT GMBH [DE]
- [Y] US 2004035540 A1 20040226 - MAEENPAEAE TAPIO [US], et al
- [Y] EP 1258722 A1 20021120 - METSO PAPER AUTOMATION OY [FI]
- [Y] DE 10101467 A1 20020718 - ZANDER BIRGITT [DE]
- [A] WO 9920836 A1 19990429 - VALMET CORP [FI], et al
Designated contracting state (EPC)
AT DE FI FR IT SE
DOCDB simple family (publication)
EP 1693509 A1 20060823; EP 1693509 B1 20110323; AT E503055 T1 20110415; DE 102005007835 A1 20060831; DE 502005011155 D1 20110505
DOCDB simple family (application)
EP 05111361 A 20051128; AT 05111361 T 20051128; DE 102005007835 A 20050221; DE 502005011155 T 20051128