Patent US3409239A successfully refreshed from Google Patents.
US3409239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape recording and reproducing machine
Assignee: Ampex Corp
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Filing: 1964-05-04
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Granted: 1968-11-05
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Siebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:34
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3018; G11B15/00; G11B15/02; G11B15/16; G11B15/18; G11B15/22; G11B15/26; G11B15/28; G11B15/29; G11B15/43; G11B15/44; G11B15/442; G11B15/46; G11B15/50; G11B15/60; G11B15/66
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
152 words
IN A MAGNETIC TAPE TRANSPORT OF THE CLASS IN WHICH THE TAPE IS MOUNTED ON A PAIR OF REELS FOR SELECTIVE WINDING AND PLAYING MOVEMENT IN BOTH FORWARD AND REVERSE LONGITUDINAL DIRECTIONS, THE COMBINATION COMPRISING: MAIN DRIVE MEANS OPERABLE IN FORWARD AND REVERSE DIRECTION; MEANS FOR SELECTIVELY COUPLING AND UNCOUPLING SAID TAPE AND SAID MAIN DRIVE MEANS IN BOTH OF SAID FORWARD AND REVERSE DIRECTIONS OF OPERATION; MEANS FOR SELECTIVELY COUPLING AND UNCOUPLING SAID MAIN DRIVE MEANS AND THE TAKEUP ONE OF SAID REELS FOR WINDING UP SAID TAPE IN THE DIRECTION OF MOVEMENT THEREOF; SAID TAPE-COUPLING MEANS HAVING A LOST-MOTION CONNECTTION WITH SAID REEL-COUPLING MEANS SUCH THAT OPERATION OF SAID TAPE-COUPLING MEANS CAUSES CORRESPONDING OPERATION OF SAID REEL-COUPLING MEANS, SAID REELCOUPLING MEANS BEING ALSO OPERABLE INDEPENDENTLY OF SAID TAPE-COUPLING MEANS; AND REEL BRAKE MEANS OPERATIVELY ASSOCIATED WITH SAID REELS FOR CONTINUOUS BRAKING OF AT LEAST THE SUPPLY ONE OF SAID REELS.
Claim 2
Dependent Claim
152 words
IN A MAGNETIC TAPE TRANSPORT OF THE CLASS IN WHICH THE TAPE IS MOUNTED ON A PAIR OF REELS FOR SELECTIVE WINDING AND PLAYING MOVEMENT IN BOTH FORWARD AND REVERSE LONGITUDINAL DIRECTIONS, THE COMBINATION COMPRISING: MAIN DRIVE MEANS OPERABLE IN FORWARD AND REVERSE DIRECTION; MEANS FOR SELECTIVELY COUPLING AND UNCOUPLING SAID TAPE AND SAID MAIN DRIVE MEANS IN BOTH OF SAID FORWARD AND REVERSE DIRECTIONS OF OPERATION; MEANS FOR SELECTIVELY COUPLING AND UNCOUPLING SAID MAIN DRIVE MEANS AND THE TAKEUP ONE OF SAID REELS FOR WINDING UP SAID TAPE IN THE DIRECTION OF MOVEMENT THEREOF; SAID TAPE-COUPLING MEANS HAVING A LOST-MOTION CONNECTTION WITH SAID REEL-COUPLING MEANS SUCH THAT OPERATION OF SAID TAPE-COUPLING MEANS CAUSES CORRESPONDING OPERATION OF SAID REEL-COUPLING MEANS, SAID REELCOUPLING MEANS BEING ALSO OPERABLE INDEPENDENTLY OF SAID TAPE-COUPLING MEANS; AND REEL BRAKE MEANS OPERATIVELY ASSOCIATED WITH SAID REELS FOR CONTINUOUS BRAKING OF AT LEAST THE SUPPLY ONE OF SAID REELS.
Claim 3
Dependent Claim
118 words
A TAPE DRIVING DEVICE COMPRISING: A TAPE ARRANGED FOR MOTION IN FORWARD AND REVERSE DIRECTIONS ON A PREDETERMINED PATH; A PAIR OF ROTATABLE CAPSTANS FRICTIONALLY ENGAGING SAID TAPE AT SPACED POINTS ON SAID PATH FOR CAUSING SAID MOTION; AN ENDLESS ELASTIC BELT ENGAGING BOTH OF SAID CAPSTANS FOR DRIVING SAME; THE RATIO OF THE TAPE-ENGAGING AND BELT-ENGAGING DIAMETERS OF EACH CAPSTAN BEING EQUAL TO THE RATIO OF SAID DIAMETERS OF THE OTHER CAPSTANS; AND REVERSIBLE DRIVE MEANS ARRANGED FOR DRIVING SAID DRIVE BELT IN A DIRECTION FROM SAID DRIVE MEANS TO THAT ONE OF SAID CAPSTANS THAT IS UPSTREAM WITH RESPECT TO TAPE MOTION ON SAID PATH, THENCE TO THE DOWNSTREAM CAPSTAN AND THENCE TO SAID DRIVE MEANS.
Claim 4
Dependent Claim
118 words
A TAPE DRIVING DEVICE COMPRISING: A TAPE ARRANGED FOR MOTION IN FORWARD AND REVERSE DIRECTIONS ON A PREDETERMINED PATH; A PAIR OF ROTATABLE CAPSTANS FRICTIONALLY ENGAGING SAID TAPE AT SPACED POINTS ON SAID PATH FOR CAUSING SAID MOTION; AN ENDLESS ELASTIC BELT ENGAGING BOTH OF SAID CAPSTANS FOR DRIVING SAME; THE RATIO OF THE TAPE-ENGAGING AND BELT-ENGAGING DIAMETERS OF EACH CAPSTAN BEING EQUAL TO THE RATIO OF SAID DIAMETERS OF THE OTHER CAPSTANS; AND REVERSIBLE DRIVE MEANS ARRANGED FOR DRIVING SAID DRIVE BELT IN A DIRECTION FROM SAID DRIVE MEANS TO THAT ONE OF SAID CAPSTANS THAT IS UPSTREAM WITH RESPECT TO TAPE MOTION ON SAID PATH, THENCE TO THE DOWNSTREAM CAPSTAN AND THENCE TO SAID DRIVE MEANS.
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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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |