EP 0694126 B1 19980603 - SPINNING PUMP FOR POLYAMIDES
Title (en)
SPINNING PUMP FOR POLYAMIDES
Title (de)
SPINNPUMPE FÜR POLYAMIDE
Title (fr)
POMPE DE FILATURE POUR POLYAMIDES
Publication
Application
Priority
- CH 9500029 W 19950207
- CH 42794 A 19940214
Abstract (en)
[origin: WO9522002A1] In a spinning pump for the melt extrusion of polyamides, drillings (10, 10') with partially circular cross-section are formed in the central plate (6) in such a way that the cross-sectional area of the drillings (10, 10') tapers towards the back (6'') of the central plate (6) and the centres of the drillings (10, 10') have a parabolic contour towards the back (6'') of the central plate (6). Drillings (10, 10') designed in this manner have made it possible to prevent cracked deposits inside the pump channels and increase the productivity of top-quality melt extrusion by over 10 %.
IPC 1-7
IPC 8 full level
F04C 2/18 (2006.01); F04C 2/08 (2006.01); F04C 15/06 (2006.01)
CPC (source: EP US)
F04C 2/086 (2013.01 - EP US); F04C 15/06 (2013.01 - EP US); F04C 2250/10 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
WO 9522002 A1 19950817; CN 1062645 C 20010228; CN 1123049 A 19960522; DE 59502392 D1 19980709; EP 0694126 A1 19960131; EP 0694126 B1 19980603; ES 2121344 T3 19981116; JP 2961119 B2 19991012; JP H08510529 A 19961105; US 5618172 A 19970408
DOCDB simple family (application)
CH 9500029 W 19950207; CN 95190087 A 19950207; DE 59502392 T 19950207; EP 95906876 A 19950207; ES 95906876 T 19950207; JP 52088495 A 19950207; US 53255695 A 19950915