US3290184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annealing metal in coils
Assignee: Armco Inc
•
Filing: 1965-08-13
•
Granted: 1966-12-06
•
Expires: 1985-08-13
Abstract
No abstract record available.
Inventors
- 👤 William H Minck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:21
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN A METHOD OF ANNEALING COILS OF STRIP IN AN OPEN COIL ANNEALING OPERATION, WHICH COMPRISES COILING A LENGTH OF METALLIC STRIP AND SIMULTANEOUSLY DURING THE FORMATION OF THE COIL WINDING A SEPARATOR BETWEEN THE CONVOLUTIONS THEREOF, AND THEREAFTER PASSING AN ANNEALING ATMOSPHERE BETWEEN THE SEPARATED CONVOLUTIONS OF THE COIL WHILE THE SEPARATOR IS MAINTAINED BETWEEN THE SAID CONVOLUTIONS, THE IMPROVEMENT WHICH COMPRISES UTILIZING A SEPARATOR COMPRISING A LONGITUDINALLY FLEXIBLE METALLIC WIRE STRAND HAVING SPACING MEANS JUXTAPOSED THERETO THROUGH THE EFFECTIVE LENGTH OF THE STRAND, THE SAID SPACING MEANS BEING FORMED FROM METAL AND COACTING WITH THE SAID STRAND TO DEFINE SPACED APART, LATERALLY RIGID AND NON-COLLAPSIBLE SPACERS WHICH SEPARATE ADJOINING CONVOLUTIONS OF THE COIL BY A DISTANCE OF AT LEAST ABOUT 0.030 INCH GREATER THAN THE THICKNESS OF THE SAID STRAND, THEREBY PROVIDING SUFFICIENT SPACE BETWEEN SAID STRAND AND THE ADJOINING CONVOLUTIONS OF THE COIL FOR THE FLOW OF THE ANNEALING ATMOSPHERE THEREBETWEEN.
Claim 2
Dependent Claim
154 words
IN A METHOD OF ANNEALING COILS OF STRIP IN AN OPEN COIL ANNEALING OPERATION, WHICH COMPRISES COILING A LENGTH OF METALLIC STRIP AND SIMULTANEOUSLY DURING THE FORMATION OF THE COIL WINDING A SEPARATOR BETWEEN THE CONVOLUTIONS THEREOF, AND THEREAFTER PASSING AN ANNEALING ATMOSPHERE BETWEEN THE SEPARATED CONVOLUTIONS OF THE COIL WHILE THE SEPARATOR IS MAINTAINED BETWEEN THE SAID CONVOLUTIONS, THE IMPROVEMENT WHICH COMPRISES UTILIZING A SEPARATOR COMPRISING A LONGITUDINALLY FLEXIBLE METALLIC WIRE STRAND HAVING SPACING MEANS JUXTAPOSED THERETO THROUGH THE EFFECTIVE LENGTH OF THE STRAND, THE SAID SPACING MEANS BEING FORMED FROM METAL AND COACTING WITH THE SAID STRAND TO DEFINE SPACED APART, LATERALLY RIGID AND NON-COLLAPSIBLE SPACERS WHICH SEPARATE ADJOINING CONVOLUTIONS OF THE COIL BY A DISTANCE OF AT LEAST ABOUT 0.030 INCH GREATER THAN THE THICKNESS OF THE SAID STRAND, THEREBY PROVIDING SUFFICIENT SPACE BETWEEN SAID STRAND AND THE ADJOINING CONVOLUTIONS OF THE COIL FOR THE FLOW OF THE ANNEALING ATMOSPHERE THEREBETWEEN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |