Patent US3712552A successfully refreshed from Google Patents.
US3712552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stopper for a tape reel of a tape cartridge
Assignee: Individual
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Filing: 1970-06-05
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Granted: 1973-01-23
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Expires: 1990-06-05
Abstract
Abstract A brake arrangement for a tape reel of a tape cartridge has a lever pivotally secured to the cartridge outside of the tape reel periphery and has a first brake mounted on the reel side of one end thereof for stopping the tape reel. A spring secured adjacent to said lever depresses the lever against the tape reel. A second brake is mounted on the end of the lever and a pinch roller is mounted on the other side of the same end of the lever. This stops the rotation of the tape reel when it is not in the recorder or is not played while set into the tape recorder.
Inventors
- 👤 E Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:58
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
A brake arrangement for tape cArtridges for use in a tape recorder carrying multiple tape cartridges, said tape recorder including capstan means for selectively driving the tape within only one of said cartridges and displaceable means acting on the other of said cartridges, said brake arrangement comprising: a lever pivotably secured within each cartridge intermediate of its ends and outside the tape reel periphery, first spring biased braking means on the reel side of one end of said lever for braking the tape reel when the cartridge is removed from the tape recorder, a pinch roller mounted on the other end of said lever for pressing said tape against said tape drive capstan and normally biased out of contact therewith, the improvement comprising: second brake means carried on the same end of said lever as said pinch roller and on the side facing said tape reel periphery and spaced from the reel periphery when the pinch roller presses said tape against said capstan drive means, said second brake means being forced against said tape periphery by said displaceable means when said tape is in said tape recorder by not being driven by said capstan, thereby preventing the loosening of said tape when it is not being driven.
Claim 2
Dependent Claim
207 words
A brake arrangement for tape cArtridges for use in a tape recorder carrying multiple tape cartridges, said tape recorder including capstan means for selectively driving the tape within only one of said cartridges and displaceable means acting on the other of said cartridges, said brake arrangement comprising: a lever pivotably secured within each cartridge intermediate of its ends and outside the tape reel periphery, first spring biased braking means on the reel side of one end of said lever for braking the tape reel when the cartridge is removed from the tape recorder, a pinch roller mounted on the other end of said lever for pressing said tape against said tape drive capstan and normally biased out of contact therewith, the improvement comprising: second brake means carried on the same end of said lever as said pinch roller and on the side facing said tape reel periphery and spaced from the reel periphery when the pinch roller presses said tape against said capstan drive means, said second brake means being forced against said tape periphery by said displaceable means when said tape is in said tape recorder by not being driven by said capstan, thereby preventing the loosening of said tape when it is not being driven.
Claim 3
Dependent Claim
47 words
The brake arrangement as set forth in claim 1, wherein said first braking means comprises a friction brake mounted on the reel side of one end of said lever and said second braking means comprises a friction brake mounted on the other end of the same lever.
Claim 4
Dependent Claim
69 words
The brake arrangement as claimed in claim 1, wherein each cartridge includes a first window permitting said pinch roller to press said tape within said cartridge against a capstan external of the same, and each cartridge includes a second window spaced therefrom and in line with said pivotable lever and wherein said displaceable means comprises a rod which is selectively inserted within said second window for contacting said lever.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |