Global Patent Index - EP 0987438 B1

EP 0987438 B1 2001-03-14 - Security against rotation for stators of eccentric screw pumps

Title (en)

Security against rotation for stators of eccentric screw pumps

Title (de)

Verdrehsicherung für Statoren von Exzenterschneckenpumpen

Title (fr)

Securité contre la rotation pour des stators de pompes à vis excentrique

Publication

EP 0987438 B1 (DE)

Application

EP 99117854 A

Priority

DE 29816742 U

Abstract (en)

[origin: EP0987438A1] The turning lock is for the elastomer stator of an eccentric screw conveyor pump. The metal jacket round the elastomer cover has at least one radial stud which can act as a stop on the fixed part of the pump. The jacket (1) has a threaded element, e.g. a nut (8), into which the stud (7), with a corresponding external thread, can be screwed. A free separate part of the stud may have a hose-like covering (11) of elastomer or thermoplastic.

Abstract (de)

Die Erfingung betrifft eine Verdrehsicherung für Elastomerstatoren von Exzenterschneckenpumpen, wobei der metallische, die Elastomerauskleidung (2) umschliessende Mantel (1) des Stators mit einem etwa radial abstehenden Zapfen (7) versehen ist, der an festen Teilen (5) zum Anschlag kommen kann. Um diese Zapfen auswechseln und nach Anbringung einer Schutzfolie (12) für den Stator anbringen zu können, wird aufgrund der Erfindung vorgeschlagen, den Statormantel mit einem ein Gewindeloch aufweisenden Element (8) zu versehen, in das der mit einem Gewinde ausgestattete Zapfen einschraubbar ist. <IMAGE>

IPC 1-7 (main, further and additional classification)

F04C 2/107

IPC 8 full level (invention and additional information)

F04C 2/107 (2006.01)

CPC (invention and additional information)

F04C 2/1075 (2013.01)

Designated contracting state (EPC)

AT DE IT

EPO simple patent family

DE 29816742 U1 19981126; AT 199764 T 20010315; EP 0987438 A1 20000322; EP 0987438 B1 20010314

INPADOC legal status


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2002-03-06 [26N] NO OPPOSITION FILED

2001-08-10 [EN] FR: TRANSLATION NOT FILED

2001-05-09 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: ING. C. GREGORJ S.P.A.

2001-04-19 [REF] CORRESPONDS TO:

- Document: DE 59900057 20010419

2001-03-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AT DE IT

2001-03-14 [REF] CORRESPONDS TO:

- Document: AT 199764 T 20010315

2000-12-06 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: AT DE IT

2000-10-25 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20000906

2000-03-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000119

2000-03-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE IT

2000-03-22 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI