Global Patent Index - EP 2021580 A1

EP 2021580 A1 2009-02-11 - ROCK DRILLING RIG AND METHOD OF CONTROLLING THEREOF

Title (en)

ROCK DRILLING RIG AND METHOD OF CONTROLLING THEREOF

Title (de)

GESTEINSBOHRMASCHINE UND STEUERVERFAHREN DAFÜR

Title (fr)

INSTALLATION DE FORAGE DE ROCHES ET SON PROCÉDÉ DE COMMANDE

Publication

EP 2021580 A1 (EN)

Application

EP 07730797 A

Priority

  • FI 2007050310 W
  • FI 20065369 A

Abstract (en)

[origin: WO2007138170A1] A method for controlling the operation of a rock drilling rig (1), and a rock drilling rig (1 ), comprising setting the set value (p_FEED<SUB>set</SUB>) of the feeding pressure (p_FEED) of the feeding apparatus (17) on the basis of the difference variable (?p_ROT) between the set value (P_ROTSET) and the current value (P_ROTMEAS) of the rotating pressure (p_ROT) of the rotating apparatus (16), and affecting the difference variable (?p_ROT) between the set value and the current value of the rotating pressure (p_ROT) of the rotating apparatus (16) on the basis of the difference variable (?FLOW) between the set value (FLOWSET) and the current value (FLOW<SUB>MEAS</SUB>) of the volume flow (FLOW) of the flushing medium.

IPC 8 full level (invention and additional information)

E21B 44/06 (2006.01); E21B 21/08 (2006.01); E21B 44/04 (2006.01)

CPC (invention and additional information)

E21B 7/022 (2013.01)

Citation (search report)

See references of WO 2007138170A1

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 2007138170 A1 20071206; EP 2021580 A1 20090211; FI 118778 B 20080314; FI 20065369 A0 20060601; FI 20065369 A 20071202

INPADOC legal status


2014-08-06 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20131203

2012-08-08 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2009-02-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081113

2009-02-11 [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

2009-02-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS