US3194036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material thickness control apparatus
Assignee: Westinghouse Canada Inc
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Filing: 1962-07-09
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Granted: 1965-07-13
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Expires: 1982-07-09
Abstract
No abstract record available.
Inventors
- 👤 Canfor Kenneth
- 👤 Leonard R Hulls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:17
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/16; B21B37/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
IN CONTROL APPARATUS FOR REDUCING THE THICKNESS OF MATERIAL AND OPERATIVE WITH A THICKNESS REDUCING MEMBER HAVING OPPOSED MATERIAL ENGAGING SURFACES BETWEEN WHICH A SEPARATING FORCE IS ESTABLISHED BY THE MATERIAL PASSING THROUGH THE MEMBER AND MEANS FOR PASSING THE MATERIAL TO BE REDUCED IN THICKNESS UNDER TENSION THROUGH THE THICKNESS REDUCING MEMBER, THE COMBINATION WITH SIGNAL PRODUCING MEANS FOR PRODUCING AN ELECTRIC SIGNAL REPRESENTATIVE OF THE SEPARATION SETTING OF THE SAID OPPOSED MATERIAL ENGAGING SURFACES, SECOND SIGNAL PRODUCING MEANS FOR PRODUCING ANOTHER ELECTRIC SIGNAL REPRESENTATIVE OF THE SAID SEPARATING FORCE, THIRD SIGNAL PRODUCING MEANS FOR PRODUCING A FURTHER ELECTRIC SIGNAL REPRESENTATIVE OF THE SPEED OF SAID MATERIAL REDUCING MEMBERS, FOURTH SIGNAL PRODUCING MEANS FOR PRODUCING A STILL FURTHER ELECTRIC SIGNAL REPRESENTATIVE OF A DESIRED OUTPUT THICKNESS OF MATERIAL FROM THE APPARATUS AND BEING MANUALLY ADJUSTABLE FOR ADJUSTING THE MAGNITUDE OF THE SAID STILL FURTHER ELECTRIC SIGNAL, SIGNAL COMBINING MEANS FOR COMBINING THE SAID ELECTRIC SIGNALS TO PRODUCE AN ELECTRIC ERROR SIGNAL, TENSION ADJUSTING MEANS FOR ADJUSTING THE MAGNITUDE OF THE SAID TENSION WITHIN PREDETERMINED LIMITS IN RESPONSE TO THE SAID ELECTRIC ERROR SIGNAL, AND SEPARATION SETTING ADJUSTING MEANS FOR ADJUSTING THE SEPARATION SETTING OF THE SAID OPPOSED MATERIAL ENGAGING SURFACES IN RESPONSE TO THE ELECTRIC ERROR SIGNAL.
Claim 2
Dependent Claim
208 words
IN CONTROL APPARATUS FOR REDUCING THE THICKNESS OF MATERIAL AND OPERATIVE WITH A THICKNESS REDUCING MEMBER HAVING OPPOSED MATERIAL ENGAGING SURFACES BETWEEN WHICH A SEPARATING FORCE IS ESTABLISHED BY THE MATERIAL PASSING THROUGH THE MEMBER AND MEANS FOR PASSING THE MATERIAL TO BE REDUCED IN THICKNESS UNDER TENSION THROUGH THE THICKNESS REDUCING MEMBER, THE COMBINATION WITH SIGNAL PRODUCING MEANS FOR PRODUCING AN ELECTRIC SIGNAL REPRESENTATIVE OF THE SEPARATION SETTING OF THE SAID OPPOSED MATERIAL ENGAGING SURFACES, SECOND SIGNAL PRODUCING MEANS FOR PRODUCING ANOTHER ELECTRIC SIGNAL REPRESENTATIVE OF THE SAID SEPARATING FORCE, THIRD SIGNAL PRODUCING MEANS FOR PRODUCING A FURTHER ELECTRIC SIGNAL REPRESENTATIVE OF THE SPEED OF SAID MATERIAL REDUCING MEMBERS, FOURTH SIGNAL PRODUCING MEANS FOR PRODUCING A STILL FURTHER ELECTRIC SIGNAL REPRESENTATIVE OF A DESIRED OUTPUT THICKNESS OF MATERIAL FROM THE APPARATUS AND BEING MANUALLY ADJUSTABLE FOR ADJUSTING THE MAGNITUDE OF THE SAID STILL FURTHER ELECTRIC SIGNAL, SIGNAL COMBINING MEANS FOR COMBINING THE SAID ELECTRIC SIGNALS TO PRODUCE AN ELECTRIC ERROR SIGNAL, TENSION ADJUSTING MEANS FOR ADJUSTING THE MAGNITUDE OF THE SAID TENSION WITHIN PREDETERMINED LIMITS IN RESPONSE TO THE SAID ELECTRIC ERROR SIGNAL, AND SEPARATION SETTING ADJUSTING MEANS FOR ADJUSTING THE SEPARATION SETTING OF THE SAID OPPOSED MATERIAL ENGAGING SURFACES IN RESPONSE TO THE ELECTRIC ERROR SIGNAL.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |