US3261525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape guide for video drum
Assignee: US Philips Corp
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Filing: 1964-06-16
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Granted: 1966-07-19
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Expires: 1984-06-16
Abstract
No abstract record available.
Inventors
- 👤 Lange Herman Kasper Adriaan De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:37
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/004; G11B15/00; G11B15/60; G11B15/61
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
APPARATUS IN WHICH A CYLINDRICAL DRUM IS PROVIDED HAVING A PATH OVER WHICH A RECORD CARRIER, WHICH IS HELICALLY WOUND ON THE OUTER SURFACE OF SAID DRUM IS PASSED, THE IMPROVEMENT COMPRISING A PLURALITY OF STUD MEANS PROTRUDING FROM SAID DRUM SURFACE ALONG AT LEAST ONE SIDE OF SAID PATH, A PLURALITY OF RECESSES IN SAID DRUM SURFACE ALONG AT LEAST SAID ONE SIDE OF SAID PATH FOR LATERALLY GUIDING SAID STUDS, SAID RECESSES EXTENDING TRANSVERSELY OF THE SAID PATH AND HAVING A PORTION THEREOF IN SAID PATH, SAID STUD MEANS HAVING A SHANK PORTION REMOTE FROM SAID PATH AND A HOOK PORTION ADJACENT SAID PATH, SAID HOOK PORTION OF EACH STUD TERMINATING IN ONE OF SAID RECESSES, AND MEANS CONNECTED WITH SAID DRUM SURFACE ENGAGING THE SHANK PORTION OF SAID STUDS FOR MOVABLY SECURING EACH OF SAID STUDS ON SAID DRUM SURFACES.
Claim 2
Dependent Claim
143 words
APPARATUS IN WHICH A CYLINDRICAL DRUM IS PROVIDED HAVING A PATH OVER WHICH A RECORD CARRIER, WHICH IS HELICALLY WOUND ON THE OUTER SURFACE OF SAID DRUM IS PASSED, THE IMPROVEMENT COMPRISING A PLURALITY OF STUD MEANS PROTRUDING FROM SAID DRUM SURFACE ALONG AT LEAST ONE SIDE OF SAID PATH, A PLURALITY OF RECESSES IN SAID DRUM SURFACE ALONG AT LEAST SAID ONE SIDE OF SAID PATH FOR LATERALLY GUIDING SAID STUDS, SAID RECESSES EXTENDING TRANSVERSELY OF THE SAID PATH AND HAVING A PORTION THEREOF IN SAID PATH, SAID STUD MEANS HAVING A SHANK PORTION REMOTE FROM SAID PATH AND A HOOK PORTION ADJACENT SAID PATH, SAID HOOK PORTION OF EACH STUD TERMINATING IN ONE OF SAID RECESSES, AND MEANS CONNECTED WITH SAID DRUM SURFACE ENGAGING THE SHANK PORTION OF SAID STUDS FOR MOVABLY SECURING EACH OF SAID STUDS ON SAID DRUM SURFACES.
References Cited (Backward Citations)
US328297A
Cited
FR1265219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |