FR2029807A1 - - Google Patents

Info

Publication number
FR2029807A1
FR2029807A1 FR7003393A FR7003393A FR2029807A1 FR 2029807 A1 FR2029807 A1 FR 2029807A1 FR 7003393 A FR7003393 A FR 7003393A FR 7003393 A FR7003393 A FR 7003393A FR 2029807 A1 FR2029807 A1 FR 2029807A1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7003393A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bethlehem Steel Corp
Original Assignee
Bethlehem Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bethlehem Steel Corp filed Critical Bethlehem Steel Corp
Publication of FR2029807A1 publication Critical patent/FR2029807A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/894—Pinholes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
FR7003393A 1969-01-31 1970-01-30 Withdrawn FR2029807A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79551169A 1969-01-31 1969-01-31

Publications (1)

Publication Number Publication Date
FR2029807A1 true FR2029807A1 (fr) 1970-10-23

Family

ID=25165710

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7003393A Withdrawn FR2029807A1 (fr) 1969-01-31 1970-01-30

Country Status (6)

Country Link
US (1) US3558900A (fr)
JP (1) JPS5124908B1 (fr)
DE (1) DE2003741C3 (fr)
FR (1) FR2029807A1 (fr)
GB (1) GB1303521A (fr)
SE (1) SE363404B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118317A5 (fr) * 1970-12-17 1972-07-28 Sagem
USRE28347E (en) * 1971-04-02 1975-02-25 System for detectihg defects in continuous traveling material
DE2241263C3 (de) * 1971-08-25 1975-05-07 Hitachi Electronics Co., Ltd. überwachungsvorrichtung zur Erfassung eines Fehlers auf der Oberfläche eines sich bewegenden bandförmigen Gegenstandes
US4131803A (en) * 1975-11-05 1978-12-26 Toyo Boseki Kabushiki Kaisha Apparatus for detecting defects in sheet material
SE434090B (sv) * 1982-11-18 1984-07-02 Esselte Security Syst Ab Anordning for astadkommande och detektering av ett spaltformigt stralknippe av ljus
JPH07240122A (ja) * 1994-02-28 1995-09-12 Furukawa Electric Co Ltd:The 高電圧絶縁体押出成形用異物検出方法および装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916633A (en) * 1957-01-22 1959-12-08 Meredith Publishing Company Photoelectric article detector
US3299771A (en) * 1963-05-17 1967-01-24 Gen Electric Shutter for pinhole detectors

Also Published As

Publication number Publication date
DE2003741B2 (de) 1978-06-01
US3558900A (en) 1971-01-26
DE2003741A1 (de) 1970-09-03
DE2003741C3 (de) 1979-02-01
JPS5124908B1 (fr) 1976-07-27
SE363404B (fr) 1974-01-14
GB1303521A (fr) 1973-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse