EP 2697511 B1 20190508 - PISTON PUMP HAVING FLAT GUIDANCE
Title (en)
PISTON PUMP HAVING FLAT GUIDANCE
Title (de)
KOLBENPUMPE MIT FLACHER FÜHRUNG
Title (fr)
POMPE A PISTON COMPORTANT UN GUIDAGE A PLAT
Publication
Application
Priority
- FR 1153165 A 20110412
- FR 2012050714 W 20120403
Abstract (en)
[origin: WO2012140346A1] The invention relates to a pumping device comprising a working chamber and a piston provided to slide in said working chamber so as to vary the useful volume of the chamber during pumping, comprising anti-rotation means for the piston. Advantageously, said anti-rotation means comprise an index (107) mounted radially with respect to the axis of the piston and the device comprises a longitudinal slot (108), said index being provided so as to move in said slot. Advantageously, the index (107) has two approximately parallel planar faces that extend longitudinally.
IPC 8 full level
F04B 9/02 (2006.01); F04B 9/04 (2006.01); F04B 13/00 (2006.01); F04B 17/03 (2006.01)
CPC (source: EP US)
F04B 1/00 (2013.01 - EP US); F04B 9/02 (2013.01 - EP US); F04B 9/04 (2013.01 - EP US); F04B 9/047 (2013.01 - EP US); F04B 13/00 (2013.01 - EP US); F04B 17/03 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012140346 A1 20121018; CN 103547801 A 20140129; CN 110242554 A 20190917; EP 2697511 A1 20140219; EP 2697511 B1 20190508; FR 2974155 A1 20121019; FR 2974155 B1 20151218; JP 2014514497 A 20140619; JP 6049692 B2 20161221; US 2014033914 A1 20140206; US 9732738 B2 20170815
DOCDB simple family (application)
FR 2012050714 W 20120403; CN 201280025169 A 20120403; CN 201910450004 A 20120403; EP 12717431 A 20120403; FR 1153165 A 20110412; JP 2014504372 A 20120403; US 201214111353 A 20120403