Global Patent Index - EP 1028889 A1

EP 1028889 A1 2000-08-23 - SEMI-SUBMERSIBLE STRUCTURE

Title (en)

SEMI-SUBMERSIBLE STRUCTURE

Title (de)

HALBTAUCHER

Title (fr)

STRUCTURE SEMI-SUBMERSIBLE

Publication

EP 1028889 A1 (EN)

Application

EP 98963464 A

Priority

  • EP 9807336 W
  • GB 9724064 A

Abstract (en)

[origin: WO9925607A1] A semi-submersible structure (10) including pontoons (16) and carrying at least one prime mover (22) is provided, with prime movers (22) being located in the pontoons (16). The structure (10) is a semi-submersible rig with a deck (12) supported on two pairs of columns (14, 15), each pair of columns being carried by a respective pontoon (16). Prime mover support equipment and fuel tanks (34, 36) are also located in the pontoons. Ducting for exhaust gases and air for the prime mover is provided in the columns (14, 15) and an air inlet duct (40) is over-pressured by forcing air into the duct. Extraction means is provided for urging gases through a second outlet duct (44) to prevent a build-up of back pressure. The ducts (40, 44) are provided with integrity devices to prevent ingress of potentially explosive gases and to ensure that water cannot enter the ducts.

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

B63B 1/10; B63H 21/12; B63H 21/32; B63J 2/06

IPC 8 full level (invention and additional information)

B63B 1/12 (2006.01); B63B 1/10 (2006.01); B63B 35/44 (2006.01); B63H 21/12 (2006.01); B63H 21/32 (2006.01); B63J 2/06 (2006.01)

CPC (invention and additional information)

B63J 2/06 (2013.01); B63B 1/107 (2013.01); B63B 35/4413 (2013.01); B63H 21/12 (2013.01); B63H 21/32 (2013.01)

Citation (search report)

See references of WO 9925607A1

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

WO 9925607 A1 19990527; AU 1873499 A 19990607; CA 2310014 A1 19990527; EP 1028889 A1 20000823; GB 9724064 D0 19980114; JP 2001523613 A 20011127; NO 20002507 A 20000714; NO 20002507 D0 20000515

INPADOC legal status


2001-09-05 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20010705

2001-05-23 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010406

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000613

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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