Patent US4520120A successfully refreshed from Google Patents.
Patent US3676609A successfully refreshed from Google Patents.
US3676609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor energized channel stepping means for battery operated tape players
Assignee: Individual
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Filing: 1970-02-24
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Granted: 1972-07-11
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Expires: 1990-02-24
Abstract
Abstract A tape deck and a power source therefor, the tape deck having a pick-up head which is progressively and repetitively shifted through a range of positions relative to a multi-track tape which moves past the head, shifting of the head being accomplished by a solenoid which is in a circuit with a capacitor adapted to energize the solenoid in response to completion of the capacitorsolenoid circuit either manually or automatically.
Inventors
- 👤 Jan Robert Coyle
- 👤 Robert Walter Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:48
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/05; G11B15/06; G11B5/00; G11B5/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
Tape deck channel stepping means, for energizing the stepping motor to cyclically shift the pick-up head of the tape deck, comprising: a battery source of electrical energy, first circuit means for connecting said battery source to the audio circuitry of the tape deck, a capacitor, second circuit means for connecting said capacitor to aid battery source, third circuit means for connecting said capacitor to said stepping motor, switch means normally completing said second circuit means and opening said third circuit means and operable to open said second circuit means and close said third circuit means, and means for effecting operation of said switching means, said battery source including a main battery source and a supplemental battery source, said first circuit means being connected to said main battery source, and said second circuit means being connected to said main battery source and to said supplemental battery source.
Claim 2
Dependent Claim
146 words
Tape deck channel stepping means, for energizing the stepping motor to cyclically shift the pick-up head of the tape deck, comprising: a battery source of electrical energy, first circuit means for connecting said battery source to the audio circuitry of the tape deck, a capacitor, second circuit means for connecting said capacitor to aid battery source, third circuit means for connecting said capacitor to said stepping motor, switch means normally completing said second circuit means and opening said third circuit means and operable to open said second circuit means and close said third circuit means, and means for effecting operation of said switching means, said battery source including a main battery source and a supplemental battery source, said first circuit means being connected to said main battery source, and said second circuit means being connected to said main battery source and to said supplemental battery source.
Claim 3
Dependent Claim
22 words
Tape deck channel stepping means as defined in claim 1, including a resistor interposed between said capacitor and said supplemental battery source.
Claim 4
Dependent Claim
117 words
In tape deck apparatus having electrically operated tape transporting drive means, a pick-up head, cyclically electrically operated means including a stepping motor for stepping the position of said head relative to the tape, a battery source of electrical energy for said electrically operated means, the improvement comprising means separate from said electrically operated means including a capacitor for energizing said stepping motor, and switching means for connecting said capacitor to said battery source to charge said capacitOr and for connecting said capacitor to said stepping motor to discharge the capacitor and energize the stepping motor and including a supplemental battery source connected to the first-mentioned battery source and also connectable to said capacitor by said switching means.
Claim 5
Dependent Claim
117 words
In tape deck apparatus having electrically operated tape transporting drive means, a pick-up head, cyclically electrically operated means including a stepping motor for stepping the position of said head relative to the tape, a battery source of electrical energy for said electrically operated means, the improvement comprising means separate from said electrically operated means including a capacitor for energizing said stepping motor, and switching means for connecting said capacitor to said battery source to charge said capacitOr and for connecting said capacitor to said stepping motor to discharge the capacitor and energize the stepping motor and including a supplemental battery source connected to the first-mentioned battery source and also connectable to said capacitor by said switching means.
Claim 6
Dependent Claim
19 words
Tape deck apparatus as defined in claim 3, including a resistor interposed between said supplemental source and said capacitor.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |