Global Patent Index - EP 0991939 A1

EP 0991939 A1 2000-04-12 - ELECTROCHEMICAL SENSOR ELEMENT WITH A POROUS REFERENCE GAS ACCUMULATOR

Title (en)

ELECTROCHEMICAL SENSOR ELEMENT WITH A POROUS REFERENCE GAS ACCUMULATOR

Title (de)

ELEKTROCHEMISCHES SENSORELEMENT MIT PORÖSEM REFERENZGASSPEICHER

Title (fr)

ELEMENT DETECTEUR ELECTROCHIMIQUE AVEC ACCUMULATEUR DE GAZ DE REFERENCE POREUX

Publication

EP 0991939 A1 (DE)

Application

EP 99916800 A

Priority

  • DE 9900750 W
  • DE 19815700 A

Abstract (en)

[origin: DE19815700A1] The invention relates to an electrochemical sensor element, especially provided for determining the oxygen content in gas mixtures. Said sensor has at least one measuring electrode (15) which is exposed to a gas to be measured, at least one reference electrode (17) which is exposed to a reference gas, and at least one heating device (23). The sensor also comprises a reference gas channel (21) through which the reference gas is supplied to the reference electrode (17). The reference electrode (17) is in contact with the reference gas via a volume provided with pores. The volume is constructed in a stratified plane between the reference gas channel (21) and the reference electrode (17).

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

G01N 27/407

IPC 8 full level (invention and additional information)

G01N 27/409 (2006.01); G01N 27/407 (2006.01); G01N 27/419 (2006.01)

CPC (invention and additional information)

G01N 27/4071 (2013.01)

Citation (search report)

See references of WO 9953302A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19815700 A1 19991014; DE 19815700 B4 20040129; EP 0991939 A1 20000412; JP 2002504235 A 20020205; US 2003136677 A1 20030724; US 6666962 B2 20031223; WO 9953302 A1 19991021

INPADOC legal status


2007-11-21 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20070531

2007-01-10 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20061120

2000-06-21 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000425

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT