US3189290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape drive and recording apparatus
Assignee: Unisys Corp
•
Filing: 1955-04-06
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Granted: 1965-06-15
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Expires: 1975-04-06
Abstract
No abstract record available.
Inventors
- 👤 Welsh Herbert Frazer
- 👤 Edmund D Schreiner
- 👤 Mock Leon Robert
- 👤 Jr John Presper Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:32
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/18; G06K13/26; G06K13/28; G11; G11B; G11B15/00; G11B15/02; G11B15/026; G11B15/18; G11B15/22; G11B15/43; G11B15/56; H; H04; H04L; H04L13/00; H04L13/02; H04L13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A HIGH SPEED TAPE FEEDING MECHANISM COMPRISING A REEL, A TAPE MOVING MEANS, A LENTTH OF TAPE WOUND ON SAID REEL AND COUPLED TO SAID TAPE MOVING MEANS, THE TAPE FORMING A DEPENDENT LOOP BETWEEN THE REEL AND SAID TAPE MOVING MEANS, SENSING MEANS CONTINUOUSLY RESPONSIVE TO THE LENGTH OF THE TAPE LOOP, VARIABLE SPEED ROTATABLE MEANS FED BY SAID SENSING MEANS AND COUPLED TO SAID REEL TO FEED THE TAPE FROM SAID TAPOE MOVING MEANS TO SAID REEL TO PROVIDE A LOOP OF SUBSTANTIALLY CONSTANT LENGTH, AND DYNAMIC ELECTRICAL BRAKING MEANS ACTIVATED BY
Claim 2
Dependent Claim
94 words
A HIGH SPEED TAPE FEEDING MECHANISM COMPRISING A REEL, A TAPE MOVING MEANS, A LENTTH OF TAPE WOUND ON SAID REEL AND COUPLED TO SAID TAPE MOVING MEANS, THE TAPE FORMING A DEPENDENT LOOP BETWEEN THE REEL AND SAID TAPE MOVING MEANS, SENSING MEANS CONTINUOUSLY RESPONSIVE TO THE LENGTH OF THE TAPE LOOP, VARIABLE SPEED ROTATABLE MEANS FED BY SAID SENSING MEANS AND COUPLED TO SAID REEL TO FEED THE TAPE FROM SAID TAPOE MOVING MEANS TO SAID REEL TO PROVIDE A LOOP OF SUBSTANTIALLY CONSTANT LENGTH, AND DYNAMIC ELECTRICAL BRAKING MEANS ACTIVATED BY
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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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |