US4038561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Children's lamp
Assignee: Individual
•
Filing: 1975-06-30
•
Granted: 1977-07-26
•
Expires: 1995-06-30
Abstract
Abstract A lamp and tape deck for a childs room which includes a timer mechanism that may activate either the lamp or the tape deck, or both, for any predetermined time period and which may automatically and gradually diminish the light level and gradually reduce the volume of the tape deck or conversely increase the light level and the volume over a similar time span and wherein the lamp and tape deck can be operated independently of each other and either the lamp or the tape deck can be operated independently of the timer mechanism.
Inventors
- 👤 Michael Lorenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:48
CPC Classifications
G; G04; G04G; G04G13/00; G04G13/02; G04C; G04C21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A combination audio, light and timing mechanism adapted to provide light and sound under control of said timing mechanism including an electrical circuit for the light and an audio device and a source of power energizing the circuit, an automatic adjusting SCR circuit device in said electrical circuit, a pair of rocker switches disposed in circuit with said timing mechanism and said SCR circuit device each comprising a single pole double throw switch, potentiometer means in the electrical circuit including an automatic adjusting potentiometer and an adjustable potentiometer operating in circuit with a variable slide potentiometer with the automatic adjusting potentiometer and the adjustable potentiometer disposed in series parallel to provide a dual potentiometer circuit, a step-down transformer in the electrical circuit, and speaker means projecting said sound, said potentiometer means being disposed in the electrical circuit between said audio device and said speaker means.
Claim 2
Dependent Claim
145 words
A combination audio, light and timing mechanism adapted to provide light and sound under control of said timing mechanism including an electrical circuit for the light and an audio device and a source of power energizing the circuit, an automatic adjusting SCR circuit device in said electrical circuit, a pair of rocker switches disposed in circuit with said timing mechanism and said SCR circuit device each comprising a single pole double throw switch, potentiometer means in the electrical circuit including an automatic adjusting potentiometer and an adjustable potentiometer operating in circuit with a variable slide potentiometer with the automatic adjusting potentiometer and the adjustable potentiometer disposed in series parallel to provide a dual potentiometer circuit, a step-down transformer in the electrical circuit, and speaker means projecting said sound, said potentiometer means being disposed in the electrical circuit between said audio device and said speaker means.
References Cited (Backward Citations)
US2512775A
Cited
US2907901A
Cited
USRE26119E
Cited
US3727395A
Cited
US3798889A
Cited
US3931621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |