Patent US3949366A successfully refreshed from Google Patents.
US3949366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control system for electrical power outlet
Assignee: Individual
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Filing: 1974-09-09
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Granted: 1976-04-06
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Expires: 1994-09-09
Abstract
Abstract A remote switch control system of the type responsive to sound control waves suitable for use with electric appliances. The switch or receiver unit is built in a housing having a power inlet of the type of a regular electric plug so that the housing can be fixedly secured to an electric socket. The power outlet of the housing is of the type of a regular electric socket for receiving the household appliance power cord plug. Thus, the device can be used with any household appliance or the like. The circuitry of the receiver includes a flip-flop used as switch actuating means.
Inventors
- 👤 Frank Spillar
- 👤 George Paclik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:40
CPC Classifications
H; H03; H03J; H03J9/00; H03J9/04; G; G08; G08C; G08C23/00; G08C23/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
210 words
A remote control system including a remote control receiver responsive to a predetermined sonic frequency wherein the receiver is disposed inside a housing, the surface of said housing being provided with plug means suitable for being plugged into a regular household power socket to hold said box substantially fixed with respect to said socket, the surface of said box means further comprising socket means of a type suitable for receiving a regular household appliance power cord plug, whereby said receiver can be operatively connected with an appliance in a position wherein the receiver is located between the power inlet cord of the appliance and its associated household power socket, the receiver comprising: a. sound receiving means for conversion of sound waves into alternating electrical voltage; b. amplifier means connected to the sound receiving means for amplifying said alternating electrical voltage; c. amplitude limiting means operatively connected to said amplifier means; d. impedance transformation means connected to said amplitude limiting means; e. Frequency selecting means for selecting a predetermined frequency of said alternating electrical voltage connected to the impedance transformation means; f. switch actuating means including a flip-flop operated in response to the receipt of a signal of said predetermined frequency; and g. switch means connected to the switch actuating means.
Claim 2
Dependent Claim
210 words
A remote control system including a remote control receiver responsive to a predetermined sonic frequency wherein the receiver is disposed inside a housing, the surface of said housing being provided with plug means suitable for being plugged into a regular household power socket to hold said box substantially fixed with respect to said socket, the surface of said box means further comprising socket means of a type suitable for receiving a regular household appliance power cord plug, whereby said receiver can be operatively connected with an appliance in a position wherein the receiver is located between the power inlet cord of the appliance and its associated household power socket, the receiver comprising: a. sound receiving means for conversion of sound waves into alternating electrical voltage; b. amplifier means connected to the sound receiving means for amplifying said alternating electrical voltage; c. amplitude limiting means operatively connected to said amplifier means; d. impedance transformation means connected to said amplitude limiting means; e. Frequency selecting means for selecting a predetermined frequency of said alternating electrical voltage connected to the impedance transformation means; f. switch actuating means including a flip-flop operated in response to the receipt of a signal of said predetermined frequency; and g. switch means connected to the switch actuating means.
Claim 3
Dependent Claim
84 words
Circuitry as claimed in claim 1 wherein said switch actuating means comprises the combination of h. voltage rectifying means for rectifying a signal passed by the frequency selecting means; i. voltage level detecting means connected to the voltage rectifying means; j. pulse generating means operated in response to the detection of a rectified signal exceeding a predetermined voltage by the voltage level detecting means, k. pulse waveform shaping means connected to the pulse generating means; and m. said flip-flop connected to said shaping means.
Claim 4
Dependent Claim
25 words
Circuitry as claimed in claim 2 including means for inhibiting undesired pulse generation connected between said pulse generating means and said pulse waveform shaping means.
Claim 5
Dependent Claim
23 words
circuitry as claimed in claim 2 including means for inhibiting undesired pulse generation connected between said pulse waveform shaping means and said flip-flop.
Claim 6
Dependent Claim
25 words
Circuitry as claimed in claim 2 including means for inhibiting undesired pulse generation connected between said voltage rectifying means and said voltage level detecting means.
Claim 7
Dependent Claim
24 words
Circuitry as claimed in claim 2 including means for inhibiting undesired pulse generation connected between said voltage rectifying means and said frequency selecting means.
Claim 8
Dependent Claim
21 words
circuitry as claimed in claim 2 including a switch actuating current amplifying means connected between said flip-flop and said switch means.
Claim 9
Dependent Claim
25 words
Circuitry as claimed in claim 7 including means for inhibiting undesired pulse generation connected between said pulse generating means and said pulse waveform shaping means.
Claim 10
Dependent Claim
23 words
Circuitry as claimed in claim 7 including means for inhibiting undesired pulse generation connected between said pulse waveform shaping means and said flip-flop.
Claim 11
Dependent Claim
25 words
Circuitry as claimed in claim 7 including means for inhibiting undesired pulse generation connected between said voltage rectifying means and said voltage level detecting means.
Claim 12
Dependent Claim
24 words
Circuitry as claimed in claim 7 including means for inhibiting undesired pulse generation connected between said voltage rectifying means and said frequency selecting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |