EP 0249745 A3 19890301 - APPARATUS WITH A SPIDER FOR GRIPPING THE END OF A PIPE OR THE LIKE
Title (en)
APPARATUS WITH A SPIDER FOR GRIPPING THE END OF A PIPE OR THE LIKE
Publication
Application
Priority
DE 3617227 A 19860522
Abstract (en)
[origin: US4773689A] Releasable spider-type clamping apparatus for clamping to the end of a pipe comprises a system including a normal industrial line connection between a supply and control unit and the spider and a controllable operating device on the spider itself for operating and adjusting the clamp members, at least for the purpose of releasing them in the event the normal industrial line connection fails, the operating device comprising a pressure medium system with at least one pressure medium storage device and a wireless remote control and/or manual system.
IPC 1-7
IPC 8 full level
E21B 19/07 (2006.01); E21B 19/15 (2006.01)
CPC (source: EP US)
E21B 19/07 (2013.01 - EP US); E21B 19/155 (2013.01 - EP US); Y10S 294/905 (2013.01 - EP US)
Citation (search report)
- [Y] US 4320915 A 19820323 - ABBOTT RODERICK K, et al
- [Y] US 3310335 A 19670321 - SHUEY NEIL E
- [Y] US 4526413 A 19850702 - WILLIAMS HOWARD G [US]
- [A] US 3574387 A 19710413 - HAHN OSCAR W
- [A] US 3774954 A 19731127 - TAGUCHI M, et al
- [A] US 3854766 A 19741217 - JORDAN B
- [A] FR 2200470 A1 19740419 - HYDROTECH INT INC [US], et al
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0249745 A2 19871223; EP 0249745 A3 19890301; EP 0249745 B1 19910116; DE 3617227 A1 19871126; DE 3617227 C2 19880601; DE 3767380 D1 19910221; US 4773689 A 19880927
DOCDB simple family (application)
EP 87106989 A 19870514; DE 3617227 A 19860522; DE 3767380 T 19870514; US 5164287 A 19870520