Global Patent Index - EP 1649258 A1

EP 1649258 A1 20060426 - DIFFERENTIAL PRESSURE SENSOR COMPRISING AN OVERLOAD MEMBRANE THAT HAS THE SHAPE OF AN ANNULAR DISK

Title (en)

DIFFERENTIAL PRESSURE SENSOR COMPRISING AN OVERLOAD MEMBRANE THAT HAS THE SHAPE OF AN ANNULAR DISK

Title (de)

DIFFERENZDRUCKAUFNEHMER MIT RINGSCHEIBENFÖRMIGER ÜBERLASTMEMBRAN

Title (fr)

CAPTEUR DE PRESSION DIFFERENTIELLE A MEMBRANE DE SURCHARGE EN FORME DE DISQUE ANNULAIRE

Publication

EP 1649258 A1 20060426 (DE)

Application

EP 04741099 A 20040716

Priority

  • EP 2004007973 W 20040716
  • DE 10334853 A 20030729

Abstract (en)

[origin: WO2005017481A1] Disclosed is a compact differential pressure sensor that has a simple structure and a symmetrical design. Said differential pressure sensor comprises a sensor element (1), two pressure measurement chambers (2, 3) that are located next to said sensor element (1), two pressure-absorbing chambers (22, 32) which are closed by two separating membranes (21, 31), and two overload chambers (23, 33) separated from each other by means of an overload membrane (6). Said overload membrane (6) is provided with a closed outer edge and a closed inner edge and is clamped in a fixed manner along the outer and inner edge thereof. The sensor element (1) is disposed within the inner edge of the overload membrane (6) when projected onto a plane that is defined by the overload membrane (6).

IPC 1-7

G01L 13/02; G01L 19/06

IPC 8 full level

G01L 13/02 (2006.01); G01L 19/06 (2006.01)

CPC (source: EP)

G01L 19/0618 (2013.01); G01L 19/0645 (2013.01)

Citation (search report)

See references of WO 2005017481A1

Citation (examination)

GB 2065893 A 19810701 - HITACHI LTD

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005017481 A1 20050224; DE 10334853 A1 20050324; EP 1649258 A1 20060426

DOCDB simple family (application)

EP 2004007973 W 20040716; DE 10334853 A 20030729; EP 04741099 A 20040716