US3124661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:49
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/62; G11B15/602; G11B5/00; G11B5/48; G11B5/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
MAGNETIC RECORDING APPARATUS COMPRISING MAGNETIC TAPE, A TAPE TABLE HAVING A PLANE SURFACE, MEANS TO MOVE SAID TAPE AT A PREDETERMINED RATE OVER SAID TAPE TABLE, A MAGNETIC RECORDING HEAD DISPOSED TO ROTATE ABOUT AN AXIS PERPENDICULAR TO SAID PLANE SURFACE, A PLURALITY OF MAGNETIC RECORDING ELEMENTS IN SAID RECORDING HEAD EQUALLY SPACED ON A CIRCLE CENTRED ON SAID AXIS, MEANS TO MOVE SAID TAPE AT A PREDETERMINED RATE OVER SAID PLANE SURFACE WHILE MAINTAINING SAID TAPE IN A TAUT CONDITION, MEANS TO ROTATE SAID RECORDING HEAD IN MAGNETIC RECORDING RELATION WITH SAID TAPE, WHEREBY SAID RECORDING ELEMENTS PRODUCE MAGNETIC RECORDS ON SAID TAPE ON A SERIES OF CURVED PATHS SPACED ALONG SAID TAPE, AND MEANS FOR MOVING SAID AXIS TRANSVERSELY RELATIVELY TO SAID TAPE, WHEREBY SAID ELEMENTS SUBSTANTIALLY FOLLOW SAID CURVED PATHS WHILE SAID TAPE IS STATIONARY, AND THE MATTER RECORDED IN A SELECTED ONE OF SAID PATHS MAY BE REPRODUCED.
Claim 2
Dependent Claim
152 words
MAGNETIC RECORDING APPARATUS COMPRISING MAGNETIC TAPE, A TAPE TABLE HAVING A PLANE SURFACE, MEANS TO MOVE SAID TAPE AT A PREDETERMINED RATE OVER SAID TAPE TABLE, A MAGNETIC RECORDING HEAD DISPOSED TO ROTATE ABOUT AN AXIS PERPENDICULAR TO SAID PLANE SURFACE, A PLURALITY OF MAGNETIC RECORDING ELEMENTS IN SAID RECORDING HEAD EQUALLY SPACED ON A CIRCLE CENTRED ON SAID AXIS, MEANS TO MOVE SAID TAPE AT A PREDETERMINED RATE OVER SAID PLANE SURFACE WHILE MAINTAINING SAID TAPE IN A TAUT CONDITION, MEANS TO ROTATE SAID RECORDING HEAD IN MAGNETIC RECORDING RELATION WITH SAID TAPE, WHEREBY SAID RECORDING ELEMENTS PRODUCE MAGNETIC RECORDS ON SAID TAPE ON A SERIES OF CURVED PATHS SPACED ALONG SAID TAPE, AND MEANS FOR MOVING SAID AXIS TRANSVERSELY RELATIVELY TO SAID TAPE, WHEREBY SAID ELEMENTS SUBSTANTIALLY FOLLOW SAID CURVED PATHS WHILE SAID TAPE IS STATIONARY, AND THE MATTER RECORDED IN A SELECTED ONE OF SAID PATHS MAY BE REPRODUCED.
References Cited (Backward Citations)
US2326332A
Cited
US2750449A
Cited
US3020356A
Cited
US2803709A
Cited
US2919314A
Cited
US2942061A
Cited
US2937241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |