Global Patent Index - EP 0438936 B1

EP 0438936 B1 19940921 - Device for an automatic return of a hydraulic double-acting cylinder.

Title (en)

Device for an automatic return of a hydraulic double-acting cylinder.

Title (de)

Einrichtung zum automatischen Rückstellen eines hydraulischen Differentialzylinders.

Title (fr)

Dispositif pour faire effectuer automatiquement un aller-retour à un vérin double effet hydraulique.

Publication

EP 0438936 B1 19940921 (FR)

Application

EP 90403610 A 19901214

Priority

FR 8917151 A 19891222

Abstract (en)

[origin: EP0438936A1] So that the slide (7) is simple and economical to obtain, it takes the form of a cylindrical piston having a lateral wall, in which an annular groove (31) is made, whilst an L-shaped conduit (32) formed in its thickness opens out respectively onto a first transverse end wall (33) and onto the lateral wall in the vicinity of a second transverse end wall (34). <IMAGE>

IPC 1-7

F15B 11/15

IPC 8 full level

F15B 11/15 (2006.01)

CPC (source: EP)

F15B 11/15 (2013.01)

Designated contracting state (EPC)

BE DE ES GB IT NL SE

DOCDB simple family (publication)

EP 0438936 A1 19910731; EP 0438936 B1 19940921; DE 69012779 D1 19941027; DE 69012779 T2 19950202; ES 2060114 T3 19941116; FI 906070 A0 19901210; FI 906070 A 19910623; FI 95094 B 19950915; FI 95094 C 19951227; FR 2656386 A1 19910628; FR 2656386 B1 19920430; NO 177652 B 19950717; NO 177652 C 19951025; NO 905567 D0 19901221; NO 905567 L 19910624

DOCDB simple family (application)

EP 90403610 A 19901214; DE 69012779 T 19901214; ES 90403610 T 19901214; FI 906070 A 19901210; FR 8917151 A 19891222; NO 905567 A 19901221