Global Patent Index - EP 0892175 B1

EP 0892175 B1 2002-09-25 - Fluid-powered cylinder

Title (en)

Fluid-powered cylinder

Title (de)

Druckmittelbetätigbarer Arbeitszylinder

Title (fr)

Vérin à fluide sous pression

Publication

EP 0892175 B1 (DE)

Application

EP 98890180 A

Priority

AT 121197 A

Abstract (en)

[origin: EP0892175A1] The working cylinder (1) has a cylinder tube (3) with piston (4) and pressure medium connection (2). The piston contains a servo valve (9), which opens into the opposite cylinder space (8) when the supplied pressure medium exceeds a certain pressure level. A locking part (18) blocks the valve over part of the piston stroke. The part has a finger-shaped closure element (19) to block the valve intake opening (12). The finger element is spring-loaded, and has a sealing element (22) acting with the valve intake like a valve seat.

IPC 1-7 (main, further and additional classification)

F15B 15/20

IPC 8 full level (invention and additional information)

F15B 15/14 (2006.01)

CPC (invention and additional information)

F15B 15/149 (2013.01); F15B 15/1433 (2013.01); F15B 15/1447 (2013.01)

Designated contracting state (EPC)

DE ES FR IT SE

DOCDB simple family

EP 0892175 A1 19990120; EP 0892175 B1 20020925; DE 59805662 D1 20021031