Global Patent Index - EP 1076755 A1

EP 1076755 A1 2001-02-21 - CLEANING AND LUBRICATING DEVICE FOR THREADS, ESPECIALLY FOR DRILL PIPES

Title (en)

CLEANING AND LUBRICATING DEVICE FOR THREADS, ESPECIALLY FOR DRILL PIPES

Title (de)

VORRICHTUNG ZUR REINIGUNG UND SCHMIERUNG VON SCHRAUBGEWINDEN, INSBESONDERE FÜR BOHRGESTÄNGE

Title (fr)

APPAREIL DE NETTOYAGE ET GRAISSAGE DES FILETS EN PARTICULIER DE TIGES DE FORAGE

Publication

EP 1076755 A1 (EN)

Application

EP 99919716 A

Priority

  • NO 9900139 W
  • NO 981992 A

Abstract (en)

[origin: WO9960245A1] An account has been made for a thread cleaning and lubricating device in the form of a high pressure washing device (16, 18, 20, 22, 24, 12) for cleaning external/internal threads of pipe end couplings, and equipped with a mechanism (16', 18', 20, 22', 24, 12) for applying fat under pressure on said threads. A nozzle head's main body (10) is formed with two separate annuli (14, 14') for the supply of cleaning liquid under high pressure or thread-fat under pressure, respectively. In order to arrange the conditions for a uniform cleaning process across the entire thread portion and an even application of thread-fat, and for simplifying and facilitating the centring of respective pipe end's socket/tap end in relation to the axis (50) of the nozzle head/body (10), each annulus (14, 14') has a 360 DEG encircling discharge slot opening (26, 26').

IPC 1-7 (main, further and additional classification)

E21B 12/06; E21B 17/00

IPC 8 full level (invention and additional information)

B08B 9/02 (2006.01); E21B 17/00 (2006.01)

CPC (invention and additional information)

E21B 17/006 (2013.01); B08B 9/021 (2013.01)

Citation (search report)

See references of WO 9960245A1

Designated contracting state (EPC)

DE DK FR GB GR IE IT NL

EPO simple patent family

WO 9960245 A1 19991125; AU 3737299 A 19991206; CA 2334717 A1 19991125; EA 002429 B1 20020425; EA 200001147 A1 20010625; EP 1076755 A1 20010221; NO 306791 B1 19991220; NO 981992 A 19991105; NO 981992 D0 19980504

INPADOC legal status


2004-05-12 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031101

2001-02-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001204

2001-02-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE DK FR GB GR IE IT NL

2001-02-21 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: LT PAYMENT 20001204;LV PAYMENT 20001204;RO PAYMENT 20001204