EP 0377898 B1 19910807 - SINGLE-STAGE ACTUATOR WITH A PISTON ROD LOCKING DEVICE
Title (en)
SINGLE-STAGE ACTUATOR WITH A PISTON ROD LOCKING DEVICE
Publication
Application
Priority
DE 3900344 A 19890107
Abstract (en)
[origin: EP0377898A1] A power cylinder has a body (11) which houses a piston (12) which has a piston rod (121). The piston can be held in any required position by a clamping device installed in the cylinder head (112). The clamping device consists of a chamber (17) which houses a clamping cone (172). This clamping cone is pressed downwards by a stack of disc springs (17') onto a clamping bush (171) which grips the piston rod (121). The clamp is released by admitting the pressure medium to the chamber (17) so that the force of the disc springs is overcome and the clamping cone (172) is pushed upwards clear of the clamping bush (171).
IPC 1-7
IPC 8 full level
F15B 13/01 (2006.01); F15B 15/20 (2006.01); F15B 15/26 (2006.01)
CPC (source: EP)
F15B 13/015 (2013.01); F15B 15/202 (2013.01); F15B 15/262 (2013.01)
Citation (examination)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0377898 A1 19900718; EP 0377898 B1 19910807; AT E66052 T1 19910815; DE 3900344 A1 19900712; DE 58900207 D1 19910912
DOCDB simple family (application)
EP 89124047 A 19891228; AT 89124047 T 19891228; DE 3900344 A 19890107; DE 58900207 T 19891228