Patent US4001891A successfully refreshed from Google Patents.
US4001891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct individual program readout of eight-track tape cartridge
Assignee: Individual
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Filing: 1975-04-30
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Granted: 1977-01-04
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Expires: 1995-04-30
Abstract
Abstract A device for directly indicating the programs being reproduced from a particular track of a magnetic tape located within a tape cartridge. The tape cartridge includes an opening in the front of the cartridge with a four-sided program indicator shaft adjacent to the opening and containing indicia indicative of the particular programs being played on a particular track. A drive shaft along one side of the cartridge engages the program indicator shaft, with the drive shaft in turn being engaged through an aperture in the cartridge by a push shaft mounted within a magnetic tape reproduction apparatus. The push shaft is actuated by an appropriate solenoid means in electrical parallel with program indicator lights in the magnetic tape reproduction apparatus such that a change of channel being reproduced from the magnetic tape will cause extension of the push shaft and consequential rotation of the program indicator shaft to a new position indicating the programs currently being reproduced.
Inventors
- 👤 Leon D. Held
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:48
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/041; G11B23/046
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
170 words
A device for directly indicating the programs located on a particular track of a magnetic tape located within a cartridge while the programs on the particular track are being reproduced, comprising: a tape cartridge including an elongated opening in the front of the cartridge, an elongated program identifying member mounted for rotation in said cartridge directly behind said elongated opening, said program identifying member having a plurality of elongated faces, different ones of which are exposed behind said opening as said member is rotated, each face having the titles of programs located on a different track of said tape disposed thereon, a drive shaft along one side of said cartridge extending substantially perpendicular to said program identifying member, means interconnecting one end of said drive shaft and said program identifying member for causing said member to rotate when said drive shaft rotates, and an aperture in said tape cartridge adjacent the other end of said drive shaft to allow engagement therewith by a drive means located exteriorly of said cartridge.
Claim 2
Independent Claim
170 words
A device for directly indicating the programs located on a particular track of a magnetic tape located within a cartridge while the programs on the particular track are being reproduced, comprising: a tape cartridge including an elongated opening in the front of the cartridge, an elongated program identifying member mounted for rotation in said cartridge directly behind said elongated opening, said program identifying member having a plurality of elongated faces, different ones of which are exposed behind said opening as said member is rotated, each face having the titles of programs located on a different track of said tape disposed thereon, a drive shaft along one side of said cartridge extending substantially perpendicular to said program identifying member, means interconnecting one end of said drive shaft and said program identifying member for causing said member to rotate when said drive shaft rotates, and an aperture in said tape cartridge adjacent the other end of said drive shaft to allow engagement therewith by a drive means located exteriorly of said cartridge.
Claim 3
Dependent Claim
46 words
Apparatus of claim 1 wherein said program identifying member is substantially square in cross-section for at least a portion of its length adjacent said opening, forming four faces thereon, each face including indicia indicative of particular programs located on a particular track of the magnetic tape.
Claim 4
Dependent Claim
52 words
Apparatus of claim 2 including a knurled knob located near one end of said program identifying member and protruding outwardly from said cartridge for manual adjustment of said member to initially synchronize the indicia on said program indicator shaft appearing through said opening with programs currently being produced from the magnetic tape.
Claim 5
Dependent Claim
41 words
Apparatus of claim 1 including hinged flap means located above said opening and closable thereover, said flap means bearing indicia indicative of all programs located on the magnetic tape, said indicia being visible when said flap is closed over said opening.
References Cited (Backward Citations)
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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) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |