Global Patent Index - EP 1693509 B1

EP 1693509 B1 20110323 - Press roll surveillance

Title (en)

Press roll surveillance

Title (de)

Presswalzenüberwachung

Title (fr)

Surveillance d'un rouleau de presse

Publication

EP 1693509 B1 20110323 (DE)

Application

EP 05111361 A 20051128

Priority

DE 102005007835 A 20050221

Abstract (en)

[origin: EP1693509A1] 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)

D21F 3/0218 (2013.01); D21G 9/0036 (2013.01)

Designated contracting state (EPC)

AT DE FI FR IT SE

DOCDB simple family (publication)

EP 1693509 A1 20060823; EP 1693509 B1 20110323; AT 503055 T 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