Global Patent Index - EP 0837250 B1

EP 0837250 B1 20020213 - Fluid actuator

Title (en)

Fluid actuator

Title (de)

Druckmittelbetätigbarer Arbeitszylinder

Title (fr)

Vérin à fluide

Publication

EP 0837250 B1 20020213 (DE)

Application

EP 97117301 A 19971007

Priority

DE 29618186 U 19961021

Abstract (en)

[origin: EP0837250A2] A pressure medium flows from a cylinder chamber of the ram cylinder, defined by a piston, in a controlled way to a cylinder connection so as to cause the piston to move slowly to its limit position. A check valve allows unhindered application of pressure from the cylinder connection for rapid movement of the piston from its end position. Throttle grooves (30) form a route for pressure medium between the cylinder chamber and the cylinder connection (19), and in addition, a throttle area (38) is also included. Preferably, the throttle area is a fixed diaphragm (40) located in a damping sleeve (23) which is mounted on the piston rod.

IPC 1-7

F15B 15/22

IPC 8 full level

F15B 15/22 (2006.01)

CPC (source: EP)

F15B 15/222 (2013.01)

Designated contracting state (EPC)

DE FR IT SE

DOCDB simple family (publication)

DE 29618186 U1 19980219; DE 59706369 D1 20020321; EP 0837250 A2 19980422; EP 0837250 A3 19980520; EP 0837250 B1 20020213

DOCDB simple family (application)

DE 29618186 U 19961021; DE 59706369 T 19971007; EP 97117301 A 19971007