US3236474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel construction
Assignee: Fraser And Bogucki
•
Filing: 1963-11-07
•
Granted: 1966-02-22
•
Expires: 1983-11-07
Abstract
No abstract record available.
Inventors
- 👤 Luther F Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:40
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B21/326; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/67; G11B15/674
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A MAGNETIC TAPE REEL COMPRISING A CENTRAL HUB DEFINING A CENTRAL HOLE ADAPTED TO ENGAGE THE SPINDLE OF A TAPE DRIVE MECHANISM, AND A PAIR OF SUBSTANTIALLY PARALLEL FLANGES CONNECTED TO OPPOSITE ENDS OF SAID HUB, SAID HUB DEFINING A SMOOTH NON-DIAMETRAL HUB SLOT EXTENDING BETWEEN TWO PERIPHERAL PORTIONS OF THE HUB OUT OF COMMUNICATION WITH SAID CENTRAL HOLE, SAID SLOT HAVING A SINGLE CENTER POINT OF CONVERGENCE THE WIDTH OF WHICH IS LESS THAN THE WIDTH OF MAGNETIC TAPE TO BE STORED ON THE REEL, SAID SLOT INCREASING SYMMETRICALLY AND CONTINUOUSLY IN WIDTH FROM SAID CENTER POINT TO OPPOSITE ENDS OF SAID SLOT, ONE OF SAID FLANGES DEFINING A FLANGE SLOT MATCHING THAT OF THE HUB SLOT INCREASING IN WIDTH CONTINUOUSLY SYMMETRICALLY OUTWARDLY THEREFROM TO OPPOSITE PERIPHERAL PORTIONS OF SAID FLANGE.
Claim 2
Dependent Claim
132 words
A MAGNETIC TAPE REEL COMPRISING A CENTRAL HUB DEFINING A CENTRAL HOLE ADAPTED TO ENGAGE THE SPINDLE OF A TAPE DRIVE MECHANISM, AND A PAIR OF SUBSTANTIALLY PARALLEL FLANGES CONNECTED TO OPPOSITE ENDS OF SAID HUB, SAID HUB DEFINING A SMOOTH NON-DIAMETRAL HUB SLOT EXTENDING BETWEEN TWO PERIPHERAL PORTIONS OF THE HUB OUT OF COMMUNICATION WITH SAID CENTRAL HOLE, SAID SLOT HAVING A SINGLE CENTER POINT OF CONVERGENCE THE WIDTH OF WHICH IS LESS THAN THE WIDTH OF MAGNETIC TAPE TO BE STORED ON THE REEL, SAID SLOT INCREASING SYMMETRICALLY AND CONTINUOUSLY IN WIDTH FROM SAID CENTER POINT TO OPPOSITE ENDS OF SAID SLOT, ONE OF SAID FLANGES DEFINING A FLANGE SLOT MATCHING THAT OF THE HUB SLOT INCREASING IN WIDTH CONTINUOUSLY SYMMETRICALLY OUTWARDLY THEREFROM TO OPPOSITE PERIPHERAL PORTIONS OF SAID FLANGE.
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US1856112A
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US2467607A
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FR1191627A
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |