Patent US3113746A successfully refreshed from Google Patents.
US3113746A
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Strand tension control apparatus
Assignee: AT&T Inc
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Filing: 1961-12-29
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Granted: 1963-12-10
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Richard C Steen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:02
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H59/16; B65H2553/00; B65H2553/20; B65H2553/21; B65H2555/00; B65H2555/10; B65H2555/13; B65H2555/20; B65H2555/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
APPARATUS FOR TENSIONING A STRAND ADVANCING BETWEEN A STRAND SUPPLY MEANS AND A STRAND RECEIVING MEANS, COMPRISING A ROTATABLE CONDUCTIVE DISK HAVING A PERIPHERY AROUND WHICH THE STRAND IS WRAPPED, SAID DISK ENGAGING THE STRAND BETWEEN SAID STRAND SUPPLY MEANS AND SAID STRAND RECEIVING MEANS, AN ELECTROMAGNET HAVING AT LEAST ONE POLE PIECE ADJACENT EACH SIDE OF SAID DISK NEAR THE PERIPHERY OF THE DISK, AND MEANS FOR SUPPLYING ELECTRICAL ENERGY TO SAID ELECTROMAGNET TO INDUCE A ROTATION-RETARDING EDDY-CURRENT IN SAID DISK, A FLEXIBLE CANTILEVERED BEAM, A PULLEY MOUNTED ON THE FREE END OF THE BEAM, THE STRAND PASSING OVER A PORTION OF SAID PULLEY SO THAT SAID BEAM IS DEFLECTED DEPENDENT UPON STRAND TENSION, ELECTRICAL RESISTANCE TYPE STRAIN GAUGE MEANS FIXED TO AT LEAST ONE SURFACE OF SAID BEAM FOR MEASURING THE STRAIN CAUSED BY THE DEFLECTION OF THE BEAM THE ELECTRICAL RESISTANCE OF SAID STRAIN GAUGE MEANS VARYING WITH CHANGES IN THE DEFLECTION OF THE CANTILEVERED BEAM, AND MEANS FOR CHANGING THE OUTPUT OF SAID ELECTRICAL ENERGY SUPPLY MEANS IN RESPONSE TO RESISTANCE CHANGES OF SAID STRAIN GAUGE MEANS TO STABILIZE THE STRAND TENSION AT A PREDETERMINED VALUE.
Claim 2
Dependent Claim
190 words
APPARATUS FOR TENSIONING A STRAND ADVANCING BETWEEN A STRAND SUPPLY MEANS AND A STRAND RECEIVING MEANS, COMPRISING A ROTATABLE CONDUCTIVE DISK HAVING A PERIPHERY AROUND WHICH THE STRAND IS WRAPPED, SAID DISK ENGAGING THE STRAND BETWEEN SAID STRAND SUPPLY MEANS AND SAID STRAND RECEIVING MEANS, AN ELECTROMAGNET HAVING AT LEAST ONE POLE PIECE ADJACENT EACH SIDE OF SAID DISK NEAR THE PERIPHERY OF THE DISK, AND MEANS FOR SUPPLYING ELECTRICAL ENERGY TO SAID ELECTROMAGNET TO INDUCE A ROTATION-RETARDING EDDY-CURRENT IN SAID DISK, A FLEXIBLE CANTILEVERED BEAM, A PULLEY MOUNTED ON THE FREE END OF THE BEAM, THE STRAND PASSING OVER A PORTION OF SAID PULLEY SO THAT SAID BEAM IS DEFLECTED DEPENDENT UPON STRAND TENSION, ELECTRICAL RESISTANCE TYPE STRAIN GAUGE MEANS FIXED TO AT LEAST ONE SURFACE OF SAID BEAM FOR MEASURING THE STRAIN CAUSED BY THE DEFLECTION OF THE BEAM THE ELECTRICAL RESISTANCE OF SAID STRAIN GAUGE MEANS VARYING WITH CHANGES IN THE DEFLECTION OF THE CANTILEVERED BEAM, AND MEANS FOR CHANGING THE OUTPUT OF SAID ELECTRICAL ENERGY SUPPLY MEANS IN RESPONSE TO RESISTANCE CHANGES OF SAID STRAIN GAUGE MEANS TO STABILIZE THE STRAND TENSION AT A PREDETERMINED VALUE.
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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |