US4555077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cartridge
Assignee: ELECTRONIC PROCESSORS Inc
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Filing: 1983-11-25
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Granted: 1985-11-26
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Expires: 2003-11-25
Abstract
Abstract A magnetic tape cartridge is disclosed, which cartridge includes a single rotatably mounted reel. The reel is mounted within the cartridge in a manner which prevents it from rotating until the cartridge is loaded into a tape transport device. Additionally, the reel is mounted within the cartridge so that it is substantially self-centering when loaded into a tape transport device. The cartridge includes a door which is normally closed, but which is automatically opened when the cartridge is inserted into the tape transport device. When the door of the cartridge is opened it provides access to the tape in the cartridge.
Inventors
- 👤 Sanford Platter
- 👤 Charles A. Durand
- 👤 Larry R. Gadsby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:37
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/107
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
175 words
A single reel magnetic tape system including in combination: a cartridge, said cartridge having at least a first and second opposed base, side walls connected between said bases and defining an opening, and a door, said door being mounted at said opening defined by said side walls in a manner which allows it to close said opening or to be swung away from said opening; a reel, said reel having a first and second spaced apart flange connected by a circular winding hub, one said flange carrying clutch means located on its external surface concentric to said hub; a floating shaft mounted on one of said cartridge bases to support said reel for rotation of said reel around said shaft; substantially circular clutch means on said other base said circular clutch means located in stacked registration with said clutch means carried by said reel flange; and means for biasing said clutch means carried by said reel flange and by said base into engagement with one another to prevent rotation of said reel within said cartridge.
Claim 2
Dependent Claim
175 words
A single reel magnetic tape system including in combination: a cartridge, said cartridge having at least a first and second opposed base, side walls connected between said bases and defining an opening, and a door, said door being mounted at said opening defined by said side walls in a manner which allows it to close said opening or to be swung away from said opening; a reel, said reel having a first and second spaced apart flange connected by a circular winding hub, one said flange carrying clutch means located on its external surface concentric to said hub; a floating shaft mounted on one of said cartridge bases to support said reel for rotation of said reel around said shaft; substantially circular clutch means on said other base said circular clutch means located in stacked registration with said clutch means carried by said reel flange; and means for biasing said clutch means carried by said reel flange and by said base into engagement with one another to prevent rotation of said reel within said cartridge.
Claim 3
Dependent Claim
50 words
The cartridge of claim 1 wherein said magnetic tape includes connecting means at its free end, and said cartridge includes means for holding and parking said connecting means adjacent said door in a position so that connection thereto can be made from outside the cartridge when said door is opened.
References Cited (Backward Citations)
FR946106A
Cited
US3342431A
Cited
US3913145A
Cited
US3980254A
Cited
US4180220A
Cited
US4212437A
Cited
US4449677A
Cited
US4426047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-25 | 1989-05-27 | 1989-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-25 | 1993-05-27 | 1993-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-25 | 1997-05-27 | 1997-11-26 | $7700.00 | Window Closed / Lapsed |