Global Patent Index - EP 1007253 A2

EP 1007253 A2 2000-06-14 - FLUID SHUT-OFF VALVE, PROCESS AND A MACHINE TOOL

Title (en)

FLUID SHUT-OFF VALVE, PROCESS AND A MACHINE TOOL

Title (de)

FLUID ABSPERRVENTIL, HERSTELLUNGSVERFAHREN UND WERKZEUGMASCHINE

Title (fr)

VANNE D'ARRET DE FLUIDE, PROCEDE ET MACHINE-OUTIL

Publication

EP 1007253 A2 (EN)

Application

EP 97937522 A

Priority

  • EP 9704108 W
  • IT TO960663 A

Abstract (en)

[origin: WO9804376A2] The annular sealing surfaces (16, 20) of a valve body (10) and an associated shutter (12) are constituted by a locus of circles generated by the intersection of the ruled surface of a cone (K) having an elliptical base with planes parallel to one another and normal to a longitudinal axis (A>1<) of the valve. The invention also relates to a process and a machine tool for generating the annular sealing surfaces (16, 20).

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

B23B 5/06; F16K 1/226

IPC 8 full level (invention and additional information)

B23C 3/05 (2006.01); B23Q 27/00 (2006.01); F16K 1/226 (2006.01); G05B 19/18 (2006.01)

CPC (invention and additional information)

B23C 3/05 (2013.01); B23Q 27/00 (2013.01); F16K 1/226 (2013.01); G05B 19/184 (2013.01)

Citation (search report)

See references of WO 9804376A3

Designated contracting state (EPC)

BE CH DE DK ES FI FR GB LI NL SE

EPO simple patent family

WO 9804376 A2 19980205; WO 9804376 A3 19980305; AU 4012297 A 19980220; EP 1007253 A2 20000614; IT 1284716 B1 19980521; IT TO960663 A1 19980202

INPADOC legal status


2003-10-01 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030318

2001-07-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010531

2000-06-14 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990226

2000-06-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): BE CH DE DK ES FI FR GB LI NL SE