EP 2430311 A1 20120321 - PUMP PISTON DEVICE
Title (en)
PUMP PISTON DEVICE
Title (de)
PUMPENKOLBENVORRICHTUNG
Title (fr)
DISPOSITIF DE PISTON POUR POMPE
Publication
Application
Priority
- NO 2010000169 W 20100505
- NO 20091872 A 20090513
Abstract (en)
[origin: WO2010131976A1] A pump piston device (12) for reciprocating movement in a pump cylinder (4) in which, between the pump piston (12) and the pump cylinder (4), an annular space (26) is formed which is defined by a first seal (20) and a second seal (24), the annular space (26) being pressurized, and the first seal (20) and the second seal (24) being in a common piece of material which constitutes the pump piston (12).
IPC 8 full level
F04B 53/12 (2006.01); F16J 15/40 (2006.01)
CPC (source: EP US)
F04B 53/125 (2013.01 - EP US); F04B 53/148 (2013.01 - EP US); F16J 15/40 (2013.01 - EP US); F16J 15/56 (2013.01 - EP US)
Citation (search report)
See references of WO 2010131976A1
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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2010131976 A1 20101118; BR PI1010928 A2 20160405; CA 2756658 A1 20101118; EP 2430311 A1 20120321; NO 20091872 L 20101115; NO 329833 B1 20110103; RU 2011146473 A 20130620; US 2012042773 A1 20120223
DOCDB simple family (application)
NO 2010000169 W 20100505; BR PI1010928 A 20100505; CA 2756658 A 20100505; EP 10775146 A 20100505; NO 20091872 A 20090513; RU 2011146473 A 20100505; US 201013262405 A 20100505