US3245241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for maintaining uniform tensile stress in strip
Assignee: United States Steel Corp
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Filing: 1963-07-22
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Granted: 1966-04-12
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 William L Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:15
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/28; B21B37/68; B21B39/00; B21B39/02; B21B39/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
IN A ROLLING OPERATION IN WHICH METAL STRIP IS PULLED THROUGH A SET OF WORK ROLLS UNDER TENSION TO REDUCE ITS THICKNESS, A METHOD OF MAINTAINING UNIFORM TENSILE STRESS IN OPPOSITE SIDES OF THE STRIP COMPRISING DETERMINING THE RATIO OF TENSION IN THE STRIP TO THE THICKNESS THEREOF AT EACH SIDE OF THE CENTER LINE ON THE EXIT SIDE OF THE ROLLS, AND ADJUSTING THE THICKNESS AT EACH SIDE OF THE STRIP TO FURNISH EQUAL RATIOS.
Claim 2
Dependent Claim
76 words
IN A ROLLING OPERATION IN WHICH METAL STRIP IS PULLED THROUGH A SET OF WORK ROLLS UNDER TENSION TO REDUCE ITS THICKNESS, A METHOD OF MAINTAINING UNIFORM TENSILE STRESS IN OPPOSITE SIDES OF THE STRIP COMPRISING DETERMINING THE RATIO OF TENSION IN THE STRIP TO THE THICKNESS THEREOF AT EACH SIDE OF THE CENTER LINE ON THE EXIT SIDE OF THE ROLLS, AND ADJUSTING THE THICKNESS AT EACH SIDE OF THE STRIP TO FURNISH EQUAL RATIOS.
Claim 3
Dependent Claim
120 words
IN A STRIP-ROLLING MILL WHICH INCLUDES A SET OF WORK ROLLS, ADJUSTABLE MEANS OPERATIVELY CONNECTED WITH SAID ROLLS AT EACH END FOR VARYING THE SPACING THEREBETWEEN, AND A COOPERATING TENSIONING DEVICE SPACED FROM SAID ROLLS FOR PULLING METAL STRIP THERETHROUGH UNDER TENSION, THE COMBINATION THEREWITH OF AN APPARATUS FOR MAINTAINING UNIFORM TENSILE STRESS IN OPPOSITE SIDES OF THE STRIP COMPRISING MEANS FOR COMPUTING THE RATIO OF TENSION IN THE STRIP TO THE THICKNESS THEREOF AT EACH SIDE OF THE CENTER LINE ON THE EXIT SIDE OF SAID ROLLS, AND MEANS OPERATIVELY CONNECTED WITH SAID COMPUTING MEANS AND WITH SAID ADJUSTABLE MEANS FOR OPERATING THE LATTER WHEN THE RATIOS ARE UNEQUAL AND THEREBY ADJUSTING THE STRIP THICKNESS TO FURNISH EQUAL RATIOS.
Claim 4
Dependent Claim
120 words
IN A STRIP-ROLLING MILL WHICH INCLUDES A SET OF WORK ROLLS, ADJUSTABLE MEANS OPERATIVELY CONNECTED WITH SAID ROLLS AT EACH END FOR VARYING THE SPACING THEREBETWEEN, AND A COOPERATING TENSIONING DEVICE SPACED FROM SAID ROLLS FOR PULLING METAL STRIP THERETHROUGH UNDER TENSION, THE COMBINATION THEREWITH OF AN APPARATUS FOR MAINTAINING UNIFORM TENSILE STRESS IN OPPOSITE SIDES OF THE STRIP COMPRISING MEANS FOR COMPUTING THE RATIO OF TENSION IN THE STRIP TO THE THICKNESS THEREOF AT EACH SIDE OF THE CENTER LINE ON THE EXIT SIDE OF SAID ROLLS, AND MEANS OPERATIVELY CONNECTED WITH SAID COMPUTING MEANS AND WITH SAID ADJUSTABLE MEANS FOR OPERATING THE LATTER WHEN THE RATIOS ARE UNEQUAL AND THEREBY ADJUSTING THE STRIP THICKNESS TO FURNISH EQUAL RATIOS.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |