Global Patent Index - EP 0158757 B1

EP 0158757 B1 19890315 - METHOD AND APPARATUS FOR CONTROLLING WITH PRECISION THE PRESSURE DROP IN A FLUIDUM

Title (en)

METHOD AND APPARATUS FOR CONTROLLING WITH PRECISION THE PRESSURE DROP IN A FLUIDUM

Publication

EP 0158757 B1 19890315 (FR)

Application

EP 84402570 A 19841212

Priority

FR 8403062 A 19840228

Abstract (en)

[origin: EP0158757A1] 1. Method for controlling with precision the pressure drop of a hydraulic fluid, initially under high pressure, feeding a hydraulic set and comprising the detection of the pressure of the fluid, characterized in that it consists in effecting discrete pressure drops by acting with a certain number of successive actions of low fluid leakage, this number being determined as a function of the time necessary for reducing the initial fluid pressure to a desired pressure value to be obtained and in stopping the successive actions when the desired pressure value is detected.

IPC 1-7

B25B 1/18

IPC 8 full level

B25B 1/18 (2006.01)

CPC (source: EP)

B25B 1/18 (2013.01)

Designated contracting state (EPC)

BE CH DE GB IT LI LU NL SE

DOCDB simple family (publication)

FR 2560298 A1 19850830; FR 2560298 B1 19880715; DE 3477148 D1 19890420; EP 0158757 A1 19851023; EP 0158757 B1 19890315

DOCDB simple family (application)

FR 8403062 A 19840228; DE 3477148 T 19841212; EP 84402570 A 19841212