US3199800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape rewind control
Assignee: Unisys Corp
•
Filing: 1962-10-10
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Granted: 1965-08-10
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Expires: 1982-10-10
Abstract
No abstract record available.
Inventors
- 👤 Reader Trevor Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:49
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/56; G11B15/58; G11B15/18; G11B15/44; H; H02; H02P; H02P5/00; H02P5/46; H02P5/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN A TAPE TRANSPORT UTILIZING VACUUM LOOP BOXES TO STORE SEPARATE LENGTHS OF TAPE BETWEEN A SUPPLY REEL AND A CAPSTAN AND A TAKE-UP REEL AND SAID CAPSTAN, A REWIND CONTROL COMPRISING MEANS FOR CONTROLLING THE SPEED OJ DRIVE OF SAID SUPPLY REEL IN RESPONSE TO THE RELATIVE POSITION OF THE TAPE LOOP END IN AN UPPER PORTION OF THE LOOP BOX ASSOCIATED WITH SAID SUPPLY REEL, SAID CONTROL BEING OPERATIVE TO EFFECT A MAXIMUM RATE OF DRIVE BY SAID SUPLY REEL WHEN SAID LOOP END IS IN A LOWER PORTION OF SAID SUPPLY REEL BOX, MEANS FOR CONTROLLING THE SPEED OF DRIVE OF SAID TAKE-UP REEL IN RESPONSE TO THE RELATIVE PORTION OF SAID TAPE LOOP END IN SAID LOWER PORTION OF SAID SUPPLY REEL LOOP BOX, SAID LAST-NAMED MEANS BEING OPERATIVE TO EFFECT A MAXIMUM RATE OF DRIVE BY SAID TAKE-UP-REEL WHEN SAID LOOP END IS IN UPPER PORTION OF SAID SUPPLY REEL BOX.
Claim 2
Dependent Claim
156 words
IN A TAPE TRANSPORT UTILIZING VACUUM LOOP BOXES TO STORE SEPARATE LENGTHS OF TAPE BETWEEN A SUPPLY REEL AND A CAPSTAN AND A TAKE-UP REEL AND SAID CAPSTAN, A REWIND CONTROL COMPRISING MEANS FOR CONTROLLING THE SPEED OJ DRIVE OF SAID SUPPLY REEL IN RESPONSE TO THE RELATIVE POSITION OF THE TAPE LOOP END IN AN UPPER PORTION OF THE LOOP BOX ASSOCIATED WITH SAID SUPPLY REEL, SAID CONTROL BEING OPERATIVE TO EFFECT A MAXIMUM RATE OF DRIVE BY SAID SUPLY REEL WHEN SAID LOOP END IS IN A LOWER PORTION OF SAID SUPPLY REEL BOX, MEANS FOR CONTROLLING THE SPEED OF DRIVE OF SAID TAKE-UP REEL IN RESPONSE TO THE RELATIVE PORTION OF SAID TAPE LOOP END IN SAID LOWER PORTION OF SAID SUPPLY REEL LOOP BOX, SAID LAST-NAMED MEANS BEING OPERATIVE TO EFFECT A MAXIMUM RATE OF DRIVE BY SAID TAKE-UP-REEL WHEN SAID LOOP END IS IN UPPER PORTION OF SAID SUPPLY REEL BOX.
References Cited (Backward Citations)
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Cited
US3112473A
Cited
GB872441A
Cited
US3027059A
Cited
US2952415A
Cited
US3091408A
Cited
US3106357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |