US3824472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable radio/tape recorder charging and locking system
Assignee: GEN DELIVERY
•
Filing: 1973-01-24
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Granted: 1974-07-16
•
Expires: 1993-01-24
Abstract
Abstract Radio/tape recorders, particularly a charging base and a locking system for locking the portable radio/tape recorder when not in use. The system is particularly adaptable to hotel use, enabling the rental and removal of the radio/tape recorder by the individual guest and use of the unit as a business or recreational aid apart from the hotel room.
Inventors
- 👤 F Engel
- 👤 R Engel
- 👤 G Derbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:56
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/08; H04B1/086; H04B1/38; H04B2001/3894; Y; Y10; Y10S; Y10S439/00; Y10S439/929
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
210 words
A rechargeable and portable radio/tape recorder charging and locking system, comprising: A. a base unit including: i. a charger having an on/off switch and a charging outlet connector; ii. an electrical circuit interconnecting said charger and a source of electrical power; B. a portable radio/tape recorder unit removably positioned in said base unit and including: i. an energizing circuit engageable with said charger outlet connector; ii. tape recorder and radio components operably supported in said circuit, said tape recorder including a mike means and amplifier, so as to enable tape recording, as well as playback within said unit; and iii. lock means supported in said radio/tape recorder unit and extensible into said base, including a tumbler, activated by a key and a bar pivotable so as to lock said unit to said base when not in use from said tumbler through the tape recorder housing and into said base; C. a rechargeable power cell mounted in said energizing circuit and including an on/off switch and said base unit including magnetic means positionable adjacent said on/off switch, so as to deactivate said rechargeable power cell, as said radio/tape recorder is removed from said base; and D. a cigarette lighter connected to said energizing circuit and supported in said radio/tape recorder unit.
Claim 2
Dependent Claim
210 words
A rechargeable and portable radio/tape recorder charging and locking system, comprising: A. a base unit including: i. a charger having an on/off switch and a charging outlet connector; ii. an electrical circuit interconnecting said charger and a source of electrical power; B. a portable radio/tape recorder unit removably positioned in said base unit and including: i. an energizing circuit engageable with said charger outlet connector; ii. tape recorder and radio components operably supported in said circuit, said tape recorder including a mike means and amplifier, so as to enable tape recording, as well as playback within said unit; and iii. lock means supported in said radio/tape recorder unit and extensible into said base, including a tumbler, activated by a key and a bar pivotable so as to lock said unit to said base when not in use from said tumbler through the tape recorder housing and into said base; C. a rechargeable power cell mounted in said energizing circuit and including an on/off switch and said base unit including magnetic means positionable adjacent said on/off switch, so as to deactivate said rechargeable power cell, as said radio/tape recorder is removed from said base; and D. a cigarette lighter connected to said energizing circuit and supported in said radio/tape recorder unit.
Claim 3
Dependent Claim
32 words
A rechargeable and portable radio/tape recorder charging and locking system as in claim 1, said radio/tape recorder including a page amplifier system, so as to enable remote paging through the radio speaker.
Claim 4
Dependent Claim
22 words
A rechargeable and portable radio/tape recorder charging and locking system as in claim 1, including a clock connected to said energizing circuit.
References Cited (Backward Citations)
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US3070748A
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US3521010A
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |