Global patent index - EP 0983457 A1

EP 0983457 A1 2000-03-08 - A VALVE DEVICE

Title (en)

A VALVE DEVICE

Title (de)

VENTILVORRICHTUNG

Title (fr)

DISPOSITIF A SOUPAPE

Publication

EP 0983457 A1 (EN)

Application

EP 98926011 A

Priority

  • SE 9801013 W
  • SE 9702061 A

Abstract (en)

[origin: WO9854495A1] A valve device in a fluid system comprising a valve housing (10) provided with an inlet opening (11) and at least one outlet opening (12) and a valve seat (13) in connection to said inlet opening. The device further comprises a valve rod (16) which by means of actuating means (18, 22) is displaceable towards and away from the valve seat (13) and a diaphragm (17) of a flexible material which is actuatable by the valve rod and acts as a sealing against the valve seat (13). In order to indicate the presence of leakage through the diaphragm (17) without leaking to the environment and/or to make it possible to apply a counter pressure on the inside of the diaphragm in order to prevent collapse thereof at high process pressures the valve rod (16) is hollow and at or close to its end facing the diaphragm (17) is provided with a hole (25) through which the inner hollow space (24) of the valve rod communicates with the inside of the diaphragm.

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

F16K 7/17

IPC 8 full level (invention and additional information)

F16K 31/122 (2006.01); F16K 41/10 (2006.01)

CPC (invention and additional information)

F16K 41/103 (2013.01); F16K 31/1221 (2013.01)

Citation (search report)

See references of WO 9854495A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9854495 A1 19981203; AU 7794098 A 19981230; EP 0983457 A1 20000308; SE 509190 C2 19981214; SE 9702061 D0 19970530; SE 9702061 L 19981201

INPADOC legal status

2003-10-01 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030323

2003-01-02 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20021112

2000-03-08 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991221

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE