Global Patent Index - EP 2019923 A1

EP 2019923 A1 2009-02-04 - METHOD AND APPARATUS FOR CONTROLLING A RELAY PUMPING SETUP

Title (en)

METHOD AND APPARATUS FOR CONTROLLING A RELAY PUMPING SETUP

Title (de)

VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINES RELAISPUMPAUFBAUS

Title (fr)

PROCÉDÉ ET APPAREIL DESTINÉ À CONTRÔLER LA MISE EN OEUVRE D'UNE ALIMENTATION EN RELAIS

Publication

EP 2019923 A1 (EN)

Application

EP 07719827 A

Priority

  • CA 2007000905 W
  • US 80290406 P

Abstract (en)

[origin: WO2007134454A1] A method and apparatus are disclosed for controlling a relay pumping setup comprising an upstream pumping unit for pumping a liquid into a relay reservoir and a downstream pumping unit for pumping from said relay reservoir to a given location, the method comprising receiving a relay reservoir liquid level indication indicative of a liquid level in the relay reservoir and providing a control signal to at least one of the upstream pumping unit and the downstream pumping unit depending on the received relay reservoir liquid level indication.

IPC 8 full level (invention and additional information)

F04B 49/06 (2006.01); A62C 99/00 (2010.01); E03B 5/00 (2006.01); F04B 23/02 (2006.01); F04D 13/16 (2006.01); F04D 15/00 (2006.01)

CPC (invention and additional information)

G05D 9/12 (2013.01); A62C 99/00 (2013.01)

Citation (search report)

See references of WO 2007134454A1

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 MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

WO 2007134454 A1 20071129; CA 2652993 A1 20071129; EP 2019923 A1 20090204; US 2007274839 A1 20071129

INPADOC legal status


2011-07-06 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20101201

2009-02-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081128

2009-02-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS