US3206961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip tensioning device
Assignee: Davy Loewy Ltd
•
Filing: 1960-12-01
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Granted: 1965-09-21
•
Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 Bailey William Heap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:42
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/48; B21B37/50; B21C; B21C47/00; B21C47/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A LOOPER COMPRISING A ROLLER ADAPTED TO ENGAGE ELONGATE MATERIAL MOVING UNDER TENSION; A SUPPORT ARM TO SUPPORT THE ROLLER AND TO TRANSMIT FORCE THERETO TO VARY THE PATH OF THE MATERIAL; SAID ROLLER AND SUPPORT ARM BEING ROTATABLE ABOUT A FIRST REFERENCE AXIS, THE RATIO OF THE TENSION IN SAID MATERIAL TO THE TORQUE APPLIED TO THE SUPPORT ARM VARYING WITH THE ANGLE WHICH THE SUPPORT ARM MAKES WITH THE MATERIAL; A FORCE PRODUCER ADAPTED TO PRODUCE A PRESELECTED CONSTANT FORCE; AND A SELF-ADJUSTING MECHANICAL LINKAGE SYSTEM CONNECTING THE SUPPORT ARM AND FORCE PRODUCER AND ARRANGED TO TRANSMIT FORCE FROM THE FORCE PRODUCER TO APPLY A TORQUE TO THE SUPPORT ARM, THE TORQUE EXERTED BY THE FORCE PRODUCER ON THE LINKAGE SYSTEM BEIN ZERO WHEN THE ROLLER IS IN ITS LOWEST POSITION, AND MEANS FOR RAISING SAID ROLLER FROM ITS LOWEST POSITION, WHICH SYSTEM INCLUDES A FIRST TOOTHED MEMBER CONNECTED TO THE SUPPORT ARM AND ROTATABLE ABOUT A SECOND REFERENCE AXIS PARALLEL TO THE FIRST REFERENCE AXIS AND A TOOTHED CRANK WHEEL DRIVABLY ENGAGING SAID FIRST TOOTHED MEMBER, ROTATABLE ABOUT A THIRD REFERENCE AXIS PARALLEL TO THE FIRST REFERENCES AXISF A CONNECTING ROD PIVOTALLY
Claim 2
Dependent Claim
195 words
A LOOPER COMPRISING A ROLLER ADAPTED TO ENGAGE ELONGATE MATERIAL MOVING UNDER TENSION; A SUPPORT ARM TO SUPPORT THE ROLLER AND TO TRANSMIT FORCE THERETO TO VARY THE PATH OF THE MATERIAL; SAID ROLLER AND SUPPORT ARM BEING ROTATABLE ABOUT A FIRST REFERENCE AXIS, THE RATIO OF THE TENSION IN SAID MATERIAL TO THE TORQUE APPLIED TO THE SUPPORT ARM VARYING WITH THE ANGLE WHICH THE SUPPORT ARM MAKES WITH THE MATERIAL; A FORCE PRODUCER ADAPTED TO PRODUCE A PRESELECTED CONSTANT FORCE; AND A SELF-ADJUSTING MECHANICAL LINKAGE SYSTEM CONNECTING THE SUPPORT ARM AND FORCE PRODUCER AND ARRANGED TO TRANSMIT FORCE FROM THE FORCE PRODUCER TO APPLY A TORQUE TO THE SUPPORT ARM, THE TORQUE EXERTED BY THE FORCE PRODUCER ON THE LINKAGE SYSTEM BEIN ZERO WHEN THE ROLLER IS IN ITS LOWEST POSITION, AND MEANS FOR RAISING SAID ROLLER FROM ITS LOWEST POSITION, WHICH SYSTEM INCLUDES A FIRST TOOTHED MEMBER CONNECTED TO THE SUPPORT ARM AND ROTATABLE ABOUT A SECOND REFERENCE AXIS PARALLEL TO THE FIRST REFERENCE AXIS AND A TOOTHED CRANK WHEEL DRIVABLY ENGAGING SAID FIRST TOOTHED MEMBER, ROTATABLE ABOUT A THIRD REFERENCE AXIS PARALLEL TO THE FIRST REFERENCES AXISF A CONNECTING ROD PIVOTALLY
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |