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1. (CA2288657) LEAK TEST FOR CLOSED RECEPTACLES, TESTING CHAMBER, TESTING DEVICE AND INSTALLATION THEREFOR

Office : Canada
Application Number: 2288657 Application Date:
Publication Number: 2288657 Publication Date: 12.11.1998
Publication Kind : A1
Prior PCT appl.: Application Number:CH1998000181 ; Publication Number: Click to see the data
IPC:
G01M 3/18
G01M 3/32
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3
Investigating fluid tightness of structures
02
by using fluid or vacuum
04
by detecting the presence of fluid at the leakage point
16
using electric detection means
18
for pipes, cables, or tubes; for pipe joints or seals; for valves
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3
Investigating fluid tightness of structures
02
by using fluid or vacuum
26
by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
32
for containers, e.g. radiators
CPC:
G01M 3/186
G01M 3/187
G01M 3/329
Applicants: LEHMANN, MARTIN
Inventors: LEHMANN, MARTIN
Priority Data: 97107528.8 07.05.1997 EP
Title: (EN) LEAK TEST FOR CLOSED RECEPTACLES, TESTING CHAMBER, TESTING DEVICE AND INSTALLATION THEREFOR
(FR) PROCEDE DE CONTROLE D'ETANCHEITE DE RECIPIENTS FERMES, AINSI QUE CHAMBRE DE CONTROLE, DISPOSITIF ET INSTALLATION DE CONTROLE Y RELATIF
Abstract:
(EN) The invention relates to a leak test for liquid-filled receptacles, in accordance with which a pressure difference Dp between the inside and the outside of the receptacle is established. The invention seeks to provide reliable information about the imperviousness of the receptacle and also of its walls, which are in contact with the liquid content. To this end, impedance measurement (7) is carried out on the outside of the receptacle by means of measuring electrodes (3a, 3b).


Also published as:
KR1020010012377KR1020060127275SG68866RU02213333JP2001523344 CN1261955
AU1998070265WO/1998/050769