US3420964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating head wheel with motor on common shaft
Assignee: Loewe Opta GmbH
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Filing: 1961-11-01
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Granted: 1969-01-07
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Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Helmut Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:06
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/52; G11B5/53; G11B15/00; G11B15/60; G11B15/61
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
APPARATUS FOR RECORDING/REDUCING MAGNETIC TAPE COMPRISING A PAIR OF CUP-SHAPED DRUM MEMBERS IN SPACED APART ALIGNED RELATION HAVING THE BOTTOM WALLS THEREOF REMOTE FROM ONE ANOTHERM A DISC HAVING A MAGNETIC HEAD CONNECTED WITH THE PERIPHERY OF SAID DISC WITHIN THE SPACE BETWEEN SAID DRUMS, AND MEANS OF SECURING SAID DRUMS AND DISCS ON A FRAME; SAID MEANS COMPRISING A FRAME MEMBER, CONNECTING MEANS SECURING THE BOTTOM WALL OF ONE OF SAID DRUMS ON SAID FRAME MEMBER, A COAXIAL ROD MEMBER HAVING ONE END CONNECTED WITH SAID FRAME MEMBER AND THE OTHER END SECURED TO THE BOTTOM WALL OF THE DRUM REMOTE FROM SAID FRAME MEMBER, BEARING MEANS MOUNTING SAID DISC ON SAID ROD MEMBER, AND PRIME MOVER MEANS WITHIN AT LEAST ONE OF SAID DRUMS FOR DRIVING SAID DISC.
Claim 2
Dependent Claim
130 words
APPARATUS FOR RECORDING/REDUCING MAGNETIC TAPE COMPRISING A PAIR OF CUP-SHAPED DRUM MEMBERS IN SPACED APART ALIGNED RELATION HAVING THE BOTTOM WALLS THEREOF REMOTE FROM ONE ANOTHERM A DISC HAVING A MAGNETIC HEAD CONNECTED WITH THE PERIPHERY OF SAID DISC WITHIN THE SPACE BETWEEN SAID DRUMS, AND MEANS OF SECURING SAID DRUMS AND DISCS ON A FRAME; SAID MEANS COMPRISING A FRAME MEMBER, CONNECTING MEANS SECURING THE BOTTOM WALL OF ONE OF SAID DRUMS ON SAID FRAME MEMBER, A COAXIAL ROD MEMBER HAVING ONE END CONNECTED WITH SAID FRAME MEMBER AND THE OTHER END SECURED TO THE BOTTOM WALL OF THE DRUM REMOTE FROM SAID FRAME MEMBER, BEARING MEANS MOUNTING SAID DISC ON SAID ROD MEMBER, AND PRIME MOVER MEANS WITHIN AT LEAST ONE OF SAID DRUMS FOR DRIVING SAID DISC.
References Cited (Backward Citations)
US2773120A
Cited
US3042756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |