NL239261A - - Google Patents
Info
- Publication number
- NL239261A NL239261A NL239261DA NL239261A NL 239261 A NL239261 A NL 239261A NL 239261D A NL239261D A NL 239261DA NL 239261 A NL239261 A NL 239261A
- Authority
- NL
- Netherlands
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)
- Geophysics And Detection Of Objects (AREA)
- Length Measuring Devices By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US736624A US2958785A (en) | 1958-05-20 | 1958-05-20 | Pinhole detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL239261A true NL239261A (de) |
Family
ID=24960604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL239261D NL239261A (de) | 1958-05-20 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2958785A (de) |
| FR (1) | FR1224716A (de) |
| GB (1) | GB873894A (de) |
| NL (1) | NL239261A (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB970707A (en) * | 1960-02-23 | 1964-09-23 | Bruce Peebles & Co Ltd | Photo-responsive units |
| US3160741A (en) * | 1960-09-19 | 1964-12-08 | United States Steel Corp | Apparatus for evaluating strip material |
| US3202933A (en) * | 1961-08-10 | 1965-08-24 | Bausch & Lomb | Negative resistance photomultiplier oscillator |
| US3171032A (en) * | 1962-03-08 | 1965-02-23 | Control Data Corp | Photomultiplier with stabilized gain |
| US3393322A (en) * | 1965-03-23 | 1968-07-16 | Linderman Engineering Company | Photosensitive device for protecting the photoresponsive transducer in a pinhole detector |
| US3432669A (en) * | 1967-01-12 | 1969-03-11 | Ibm | Noise cancellation circuit for a photomultiplier tube |
| US3826923A (en) * | 1973-06-06 | 1974-07-30 | Aluminum Co Of America | System for detecting openings in opaque objects |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2396023A (en) * | 1943-04-26 | 1946-03-05 | Farnsworth Television & Radio | Television signal amplifier |
| GB656292A (en) * | 1947-09-10 | 1951-08-22 | Emi Ltd | Improvements relating to apparatus for generating television signals, or recording television pictures, by scanning cinematograph films |
| US2750518A (en) * | 1952-03-21 | 1956-06-12 | Fahrner Ted | Regenerative phototube signal amplifier |
| US2741725A (en) * | 1952-09-25 | 1956-04-10 | Ford Motor Co | Headlight control |
| US2840721A (en) * | 1954-05-28 | 1958-06-24 | Electric Eye Equipment Company | Detection device for moving webs |
| US2812447A (en) * | 1956-05-18 | 1957-11-05 | Ca Nat Research Council | Flaw detector for continuous sheet material |
-
0
- NL NL239261D patent/NL239261A/xx unknown
-
1958
- 1958-05-20 US US736624A patent/US2958785A/en not_active Expired - Lifetime
-
1959
- 1959-05-20 GB GB72518/59A patent/GB873894A/en not_active Expired
- 1959-05-20 FR FR795125A patent/FR1224716A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2958785A (en) | 1960-11-01 |
| GB873894A (en) | 1961-08-02 |
| FR1224716A (fr) | 1960-06-27 |