Global patent index - EP 0991936 A1

EP 0991936 A1 2000-04-12 - METHOD FOR DETERMINING THE ORIENTATION OF FIBRE STRUCTURE IN A MINERAL WOOL MAT

Title (en)

METHOD FOR DETERMINING THE ORIENTATION OF FIBRE STRUCTURE IN A MINERAL WOOL MAT

Title (de)

VERFAHREN ZUR BESTIMMUNG DER ORIENTIERUNG DER FASERSTRUKTUR EINER MINERALWOLLMATTE

Title (fr)

PROCEDE POUR LA DETERMINATION DE L'ORIENTATION DE LA STRUCTURE DES FIBRES DE MATELAS DE LAINE MINERALE

Publication

EP 0991936 A1 (FR)

Application

EP 99913415 A

Priority

  • FR 9900882 W
  • FR 9805077 A

Abstract (en)

[origin: WO9956112A1] The invention concerns a method for determining the orientation of fibre structure in a mineral wool mat, and in particular in a crimped mineral wool mats, which consists in recording on a video camera at least one image of a mineral wool mat predetermined zone and in evaluating said image luminous density profile using digital image processing. The vertical fibre proportion and the crimping fineness are computed from the luminous density profile and are digitally and/or graphically represented and evaluated.

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

G01N 21/89; G06T 7/00

IPC 8 full level (invention and additional information)

G01N 21/898 (2006.01); D04H 1/74 (2006.01); D06H 3/08 (2006.01); G01N 21/89 (2006.01); G06T 1/00 (2006.01); G06T 7/00 (2006.01); G06T 7/40 (2006.01)

CPC (invention and additional information)

G01N 21/8915 (2013.01); G06T 7/004 (2013.01); G06T 2207/30124 (2013.01)

Citation (search report)

See references of WO 9956112A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9956112 A1 19991104; AR 019093 A1 20011226; AU 3154599 A 19991116; BR 9906374 A 20000711; CA 2294441 A1 19991104; CN 1272918 A 20001108; EP 0991936 A1 20000412; HU 0002544 A2 20001128; JP 2002507286 A 20020305; KR 20010014112 A 20010226; NO 996406 A 19991222; NO 996406 D0 19991222; PL 337514 A1 20000828; SK 181299 A3 20000711

INPADOC legal status

2000-07-26 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20000527

2000-04-26 [RIN1] INVENTOR (CORRECTION)

- Ref Legal Event Code: RIN1

- Inventor name: CAZIN, SEBASTIEN

2000-04-26 [RIN1] INVENTOR (CORRECTION)

- Ref Legal Event Code: RIN1

- Inventor name: LEBRUN, DENIS

2000-04-26 [RIN1] INVENTOR (CORRECTION)

- Ref Legal Event Code: RIN1

- Inventor name: DUPOUY, VALERIE

2000-04-26 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: LEONARD, CHRISTIAN

2000-04-26 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: CHINA, FRANCOIS

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991206

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

- Ref Legal Event Code: AK

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

2000-04-12 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: SI PAYMENT 19991206