EP 1736668 A3 20090923 - Stator for a progressive cavity pump and method of construction
Title (en)
Stator for a progressive cavity pump and method of construction
Title (de)
Stator für eine Exzenterschneckenpumpe und Verfahren zu seiner Herstellung
Title (fr)
Stator pour une pompe à cavité progressive et procédé de fabrication
Publication
Application
Priority
DE 102005028818 A 20050622
Abstract (en)
[origin: DE102005028818B3] Stator comprises axially arranged stator segments (2, 3) connected pressure-tight on their contact points (12) by a tube (15) pulled onto a casing (4) and overlapping the contact points and a radially flattened metal ring (16). The tube is made fro a polymeric material. An independent claim is also included for a method for producing a stator. Preferred Features: The casing has smooth walls or is coiled. The stator segments with the casing are combined with each other. The stator segments have different geometries.
IPC 8 full level
F04C 2/107 (2006.01)
CPC (source: EP US)
F04C 2/1075 (2013.01 - EP US); Y10T 29/49242 (2015.01 - EP US)
Citation (search report)
- [DY] DE 1985861 U 19680522 - STREICHER MAX [DE]
- [Y] US 3889354 A 19750617 - NISHI SUNAO, et al
- [Y] DE 1525648 A1 19690612 - GEN ELECTRIC CO LTD
- [A] SELCK M A D: "EINE KALTE ALTERNATIVE ZUM SCHWEISSEN//TEMPERATUR- UND MEDIUMUNABHAEGIGES FITTINGSYSTEM FUER LEITUNGSSYSTEME UEBER 16 BAR//A COLD ALTERNATIVE TO WELDING//A NON-TEMPERATURE AND NON-FLUID DEPENDENT FITTING SYSTEM FOR PIPING SYSTEMS FOR > 16 BAR", 3R INTERNATIONAL, VULKAN-VERLAG, ESSEN, DE, vol. 40, no. 8, 1 January 2001 (2001-01-01), pages 497 - 500, XP001078062, ISSN: 0340-3386
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DE 102005028818 B3 20060824; CA 2551292 A1 20061222; EP 1736668 A2 20061227; EP 1736668 A3 20090923; US 2007020133 A1 20070125; US 7354258 B2 20080408
DOCDB simple family (application)
DE 102005028818 A 20050622; CA 2551292 A 20060622; EP 06012833 A 20060622; US 47254106 A 20060622