US3199801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape transport brake system
Assignee: Ampex Corp
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Filing: 1963-07-12
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Granted: 1965-08-10
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Gordon D Svendsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:16
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/43; G11B15/46; G11B15/48; H; H02; H02P; H02P3/00; H02P3/02; H02P3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A TAPE TRANSPORT UNIT INCLUDING FIRST AND SECOND REELS HAVING FIRST AND SECOND MOTORS RESPECTIVELY COUPLED THERETO, A TAPE LENGTH HAVING FIRST AND SECOND ENDS RESPECTIVELY WOUND ON SAID FIRST AND SECOND REELS; A TENSION CONTROL CIRCUIT; A SPEED SCONTROFL CIRCUIT; MEANS DRIVING SAID FIRST MOTOR FOR CAUSING SAID TAPE LENGTH TO WIND DRIVING SAID FIRST REEL AND UNWIND FROM SAID SECOND REEL; MEANS CONNECTING SAID TENSION CONTROL CIRCUIT TO SAID REEL; MEANS MEANS CONNECTING SAID SPEED CONTROL CIRCUIT TO SAID SECOND MOTOR; AND MEANS FOR BRAKING SAID TAPE INCLUDING MEANS FOR CONNECTING SAID TENSION CONTROL CIRCUIT TO SAID SECOND MOTRO AND SPEED CONTROL CIRCUIT TO SAID FIRST MOTOR.
Claim 2
Dependent Claim
110 words
IN A TAPE TRANSPORT UNIT INCLUDING FIRST AND SECOND REELS HAVING FIRST AND SECOND MOTORS RESPECTIVELY COUPLED THERETO, A TAPE LENGTH HAVING FIRST AND SECOND ENDS RESPECTIVELY WOUND ON SAID FIRST AND SECOND REELS; A TENSION CONTROL CIRCUIT; A SPEED SCONTROFL CIRCUIT; MEANS DRIVING SAID FIRST MOTOR FOR CAUSING SAID TAPE LENGTH TO WIND DRIVING SAID FIRST REEL AND UNWIND FROM SAID SECOND REEL; MEANS CONNECTING SAID TENSION CONTROL CIRCUIT TO SAID REEL; MEANS MEANS CONNECTING SAID SPEED CONTROL CIRCUIT TO SAID SECOND MOTOR; AND MEANS FOR BRAKING SAID TAPE INCLUDING MEANS FOR CONNECTING SAID TENSION CONTROL CIRCUIT TO SAID SECOND MOTRO AND SPEED CONTROL CIRCUIT TO SAID FIRST MOTOR.
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) | 1968-08-09 | 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 |