US3575422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive system
Assignee: GTE Sylvania Inc
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Filing: 1969-02-28
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Granted: 1971-04-20
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Expires: 1989-02-28
Abstract
Abstract A tape cartridge player having automatic channel-changing and shutoff capabilities. The player motor drives a flywheel which is attached by a shaft to the drive capstan of the player. At the appropriate times, intermittent drive mechanisms engage the rotating shaft which couples to the intermittent drive mechanisms energy from the rotating flywheel, which energy is utilized to provide the drive motion to accomplish the aforementioned auxiliary functions. The slight damping or slowing of the flywheel and the drive capstan during these intermittent operations does not affect the system performance since the operations occur at a time when no signal is being taken from the tape.
Inventors
- 👤 John Robert Peltz
- 👤 Clayton Lewis Stoldt
- 👤 Nikolaus Adalbert Szeverenyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:37
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5504; G11B5/5508
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
174 words
In an endless loop multichannel tape cartridge player including a magnetic head and a drive capstan operative to move the tape past said magnetic head wherein said magnetic head occupies a different position relative to the tape for each channel, an improved drive system operative to continuously rotate said drive capstan and intermittently move said magnetic head from one channel position to another, comprising: a drive motor; a flywheel; a driVe shaft having one end attached to said flywheel with the opposite end of said drive shaft mounted in said player and adapted to operate as the drive capstan; means coupling said drive motor to said flywheel whereby the energy from said drive motor provides rotational motion of the flywheel, shaft and drive capstan; a rotatable cam positioned adjacent said drive shaft; means connecting said rotatable cam to said magnetic head; and means for selectively bringing the rotatable cam into contact with said drive shaft whereby said cam is rotated and imparts motion to move said magnetic head from one channel position to another.
Claim 2
Dependent Claim
174 words
In an endless loop multichannel tape cartridge player including a magnetic head and a drive capstan operative to move the tape past said magnetic head wherein said magnetic head occupies a different position relative to the tape for each channel, an improved drive system operative to continuously rotate said drive capstan and intermittently move said magnetic head from one channel position to another, comprising: a drive motor; a flywheel; a driVe shaft having one end attached to said flywheel with the opposite end of said drive shaft mounted in said player and adapted to operate as the drive capstan; means coupling said drive motor to said flywheel whereby the energy from said drive motor provides rotational motion of the flywheel, shaft and drive capstan; a rotatable cam positioned adjacent said drive shaft; means connecting said rotatable cam to said magnetic head; and means for selectively bringing the rotatable cam into contact with said drive shaft whereby said cam is rotated and imparts motion to move said magnetic head from one channel position to another.
Claim 3
Dependent Claim
43 words
The invention according to claim 1 wherein said rotatable cam includes a driving surface substantially parallel to said shaft and a cammed surface normal to said driving surface, said cammed surface indexed to correspond to the various channel positions of said magnetic head.
Claim 4
Dependent Claim
33 words
The invention according to claim 2 wherein said means connecting said rotatable cam to said magnetic head comprises a cam follower positioned between the cammed surface of said cam and said magnetic head.
References Cited (Backward Citations)
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Cited
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US3010724A
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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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |