Global Patent Index - EP 1059417 A2

EP 1059417 A2 2000-12-13 - Excavation equipment

Title (en)

Excavation equipment

Title (de)

Ausgrabungsanlage

Title (fr)

Dispositif d'excavation

Publication

EP 1059417 A2 (EN)

Application

EP 00111882 A

Priority

  • JP 16598599 A
  • JP 16598699 A
  • JP 2000019181 A
  • JP 2000034198 A
  • JP 2000054814 A

Abstract (en)

The excavation equipment 1 has the cylindrical rotor 32 which is prepared the core bit 2 penetrably, the cylindrical stator 33 which is prepared at the periphery side of said rotor, the stationary portions 34a, 34b which are prepared at the both sides of said rotor and makes to rotate the core bit 2 with rotation of said rotor 32 by fixing the periphery side of the core bit 2 which is prepared in the cylindrical inside of said rotor 32, and the pressing down pole 4 which is inserted into the cylindrical inside of the rotor 32 and fits on the surface of the core A where is the inside portion of core bit 2 in the concrete C. By this way, it is possible to generate high torque, to exchange easily the wasted core bit and, in addition, to prevent the fitting core A to the inside of the core bit 2. <IMAGE>

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

E21B 25/00; E21B 19/24

IPC 8 full level (invention and additional information)

E21B 19/24 (2006.01); E21B 25/00 (2006.01)

CPC (invention and additional information)

E21B 25/00 (2013.01); E21B 19/24 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1059417 A2 20001213; TW 497322 B 20020801

INPADOC legal status


2008-01-18 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Document: HK 1033163

2003-08-13 [18W] WITHDRAWN

- Effective date: 20030624

2000-12-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-12-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI