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Visible Wavelength Laser Diode Based Diameter Gauge
Abstract: Visible diode laser based diameter gauge with large stand off distance adapted for non-contact method of on-line measurement especially for use in stand rolling mills having means for extending the distance between source and detection upped about 5 mitres or so, visible laser diode for simplified installation and adapted for large stand-off measurement, means for detecting the presence and absence of moving rod/bars in steel rolling mills and the like, means for estimating the ovality/shape of the rod. The non-contact method of on-line diameter measurement is very much useful in steel rolling mills for bar and rod products in measuring the diameter/width of the rod/bar. It is also useful in wire and cable industry for on-line inspection and measurement of the diameter of cables and wires. It can also be applied in cigarette industry for measuring the circumference of the cigarettes. The non-contact method is useful where the object is moving or very hot.
Notices, Deadlines & Correspondence
Patent Information
Applicants
STEEL AUTHORITY OF INDIA LIMITED
INDIAN INSTITUTE OF TECHNOLOGY KHARAGPUR
Inventors
1. BHOWMIK BIJOY
2. DUTTA PRANAB KUMAR
3. SANTRA BRAJENDRA KUMAR
4. KHAN SUSHIL CHANDRA
5. MUKHERJEE MOHAN LAL
6. REZA SELIM
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 632-CAL-2000-20-01-2023-ALL DOCUMENTS.pdf | 2023-01-20 |
| 1 | 632-cal-2000-granted-specification.pdf | 2011-10-06 |
| 2 | 632-cal-2000-granted-reply to examination report.pdf | 2011-10-06 |
| 2 | 632-CAL-2000-19-01-2023-FER.pdf | 2023-01-19 |
| 3 | 632-cal-2000-granted-pa.pdf | 2011-10-06 |
| 3 | 632-cal-2000-granted-abstract.pdf | 2011-10-06 |
| 4 | 632-cal-2000-granted-letter patent.pdf | 2011-10-06 |
| 4 | 632-cal-2000-granted-claims.pdf | 2011-10-06 |
| 5 | 632-cal-2000-granted-form 3.pdf | 2011-10-06 |
| 5 | 632-cal-2000-granted-correspondence.pdf | 2011-10-06 |
| 6 | 632-cal-2000-granted-form 2.pdf | 2011-10-06 |
| 6 | 632-cal-2000-granted-description (complete).pdf | 2011-10-06 |
| 7 | 632-cal-2000-granted-form 18.pdf | 2011-10-06 |
| 7 | 632-cal-2000-granted-drawings.pdf | 2011-10-06 |
| 8 | 632-cal-2000-granted-form 1.pdf | 2011-10-06 |
| 8 | 632-cal-2000-granted-examination report.pdf | 2011-10-06 |
| 9 | 632-cal-2000-granted-form 1.pdf | 2011-10-06 |
| 9 | 632-cal-2000-granted-examination report.pdf | 2011-10-06 |
| 10 | 632-cal-2000-granted-drawings.pdf | 2011-10-06 |
| 10 | 632-cal-2000-granted-form 18.pdf | 2011-10-06 |
| 11 | 632-cal-2000-granted-form 2.pdf | 2011-10-06 |
| 11 | 632-cal-2000-granted-description (complete).pdf | 2011-10-06 |
| 12 | 632-cal-2000-granted-form 3.pdf | 2011-10-06 |
| 12 | 632-cal-2000-granted-correspondence.pdf | 2011-10-06 |
| 13 | 632-cal-2000-granted-letter patent.pdf | 2011-10-06 |
| 13 | 632-cal-2000-granted-claims.pdf | 2011-10-06 |
| 14 | 632-cal-2000-granted-pa.pdf | 2011-10-06 |
| 14 | 632-cal-2000-granted-abstract.pdf | 2011-10-06 |
| 15 | 632-cal-2000-granted-reply to examination report.pdf | 2011-10-06 |
| 15 | 632-CAL-2000-19-01-2023-FER.pdf | 2023-01-19 |
| 16 | 632-cal-2000-granted-specification.pdf | 2011-10-06 |
| 16 | 632-CAL-2000-20-01-2023-ALL DOCUMENTS.pdf | 2023-01-20 |