EP 0246736 A1 19871125 - Pneumatic double acting piston and cylinder device.
Title (en)
Pneumatic double acting piston and cylinder device.
Title (de)
Doppeltwirkende Druckluft-Kolben- und -Zylindervorrichtung.
Title (fr)
Dispositif pneumatique comportant piston et cylindre à double effet.
Publication
Application
Priority
DE 3609765 A 19860322
Abstract (en)
A double-acting operating cylinder is disclosed, particularly useful for ventilating devices. The cylinder is of the positive-lock type with pneumatically operated piston locks at each end of the stroke. The locking device is designed in such a way that the working pressure is applied to the piston only after it has been unlocked.
IPC 1-7
IPC 8 full level
F15B 15/26 (2006.01)
CPC (source: EP)
F15B 15/261 (2013.01)
Citation (search report)
- [YD] DE 2036716 A1 19720127
- [Y] DE 3018920 A1 19811126 - ANDEXER ROLF FA [DE]
- [A] US 3889576 A 19750617 - SHEFFER HARVEY I, et al
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL
DOCDB simple family (publication)
EP 0246736 A1 19871125; EP 0246736 B1 19910220; AT E60938 T1 19910315; AU 589505 B2 19891012; AU 7015987 A 19870924; DE 3609765 A1 19870924; DE 3768049 D1 19910328
DOCDB simple family (application)
EP 87302404 A 19870320; AT 87302404 T 19870320; AU 7015987 A 19870318; DE 3609765 A 19860322; DE 3768049 T 19870320