US3886376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low power remote switch device
Assignee: Individual
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Filing: 1973-10-23
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Granted: 1975-05-27
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Expires: 1993-10-23
Abstract
Abstract A circuit having low voltage and low current means for controlling higher voltages, higher currents, and higher power circuits. The circuit comprises solid state devices but is not limited to solid state devices. The circuit may be closed by low voltage contacts while maintaining isolation from higher voltages and currents.
Inventors
- 👤 Satya Pal Asija
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:51
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/725
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
177 words
Apparatus for turning off an electrical appliance as a person falls asleep, which comprises a low power solid state control circuit for controlling higher power control circuit which includes: a. conductor means including solid state means for connection to a source of electrical energy of a given voltage; b. output means for connecting the conductor means to an electrical appliance comprising a bi-directional silicon controlled rectifier having a gate and a base; and c. switch means including solid state means operable at less than the given voltage and joined to the conductor means for controlling flow of electrical energy to the output means, where in the switch means includes a transistor in series with the gate of the bi-directional silicon controlled rectifier, and a plurality of direct current batteries, one battery being connected to the base and one battery being connected to the gate of the bi-directional silicon controlled rectifier, the switch means also including a plurality of conductors, means connecting one conductor to one of the batteries, and means connecting another conductor to the other battery.
Claim 2
Dependent Claim
177 words
Apparatus for turning off an electrical appliance as a person falls asleep, which comprises a low power solid state control circuit for controlling higher power control circuit which includes: a. conductor means including solid state means for connection to a source of electrical energy of a given voltage; b. output means for connecting the conductor means to an electrical appliance comprising a bi-directional silicon controlled rectifier having a gate and a base; and c. switch means including solid state means operable at less than the given voltage and joined to the conductor means for controlling flow of electrical energy to the output means, where in the switch means includes a transistor in series with the gate of the bi-directional silicon controlled rectifier, and a plurality of direct current batteries, one battery being connected to the base and one battery being connected to the gate of the bi-directional silicon controlled rectifier, the switch means also including a plurality of conductors, means connecting one conductor to one of the batteries, and means connecting another conductor to the other battery.
Claim 3
Dependent Claim
199 words
Apparatus for turning off an electrical appliance as a person falls asleep, which comprises a low power solid state control circuit for controlling higher power control circuits, which includes an input means, an output means, and a conductor means for connection between the input means and the output means, where in the low power solid state control circuit is further characterised by: a. a bi-directional silicon controlled rectifier device, including a gate and having a plurality of terminals, one terminal being connected to the conductor means, and another terminal of the bi-directional silicon controlled rectifier being connected to the output means, b. a transistor having a plurality of terminals, including a collector, a base, and an emitter, means connecting the emitter to the gate of the bi-directional silicon controlled rectifier, c. a plurality of low voltage direct current sources, each source having a plurality of terminals, including a positive and a negative terminal, means connecting one low voltage source to the emitter base junction of the transistor, d. a plurality of control wires, one control wire being connected to the base of the transistor and one control wire being connected to one of the low voltage direct current sources.
Claim 4
Dependent Claim
199 words
Apparatus for turning off an electrical appliance as a person falls asleep, which comprises a low power solid state control circuit for controlling higher power control circuits, which includes an input means, an output means, and a conductor means for connection between the input means and the output means, where in the low power solid state control circuit is further characterised by: a. a bi-directional silicon controlled rectifier device, including a gate and having a plurality of terminals, one terminal being connected to the conductor means, and another terminal of the bi-directional silicon controlled rectifier being connected to the output means, b. a transistor having a plurality of terminals, including a collector, a base, and an emitter, means connecting the emitter to the gate of the bi-directional silicon controlled rectifier, c. a plurality of low voltage direct current sources, each source having a plurality of terminals, including a positive and a negative terminal, means connecting one low voltage source to the emitter base junction of the transistor, d. a plurality of control wires, one control wire being connected to the base of the transistor and one control wire being connected to one of the low voltage direct current sources.
Claim 5
Independent Claim
238 words
An apparatus for turning off an electrical device as a person falls asleep, which comprises: a. means responsive to a sleep threshold condition to interrupt flow of electrical energy from a source of electrical energy to an electrical device, including a plurality of exposed wires adapted to be held in a person''s hand between a thumb and a finger; b. conductor means for connecting an electrical device to a source of electrical energy; c. switch means joined to the conductor means for interrupting flow of electrical energy from a source of electrical energy to an electrical device, d. a bi-directional silicon controlled rectifier, including a gate and having a plurality of terminals, one terminal being connected to the conductor means, and another terminal of the bi-directional silicon controlled rectifier being connected to the means responsive to the sleep threshold condition; e. a transistor having a plurality of terminals, including a collector, a base and emitter, means connecting the emitter to the gate of the bi-directional silicon controlled rectifier; f. a plurality of low voltage direct current sources, each source having a plurality of terminals, including a positive and a Negative terminal, means connecting one low voltage source to the emitter base junction of the transistor; and g. a plurality of control wires, one control wire being connected to the base of the transistor and one control wire being connected to one of the low voltage direct current sources.
Claim 6
Independent Claim
238 words
An apparatus for turning off an electrical device as a person falls asleep, which comprises: a. means responsive to a sleep threshold condition to interrupt flow of electrical energy from a source of electrical energy to an electrical device, including a plurality of exposed wires adapted to be held in a person''s hand between a thumb and a finger; b. conductor means for connecting an electrical device to a source of electrical energy; c. switch means joined to the conductor means for interrupting flow of electrical energy from a source of electrical energy to an electrical device, d. a bi-directional silicon controlled rectifier, including a gate and having a plurality of terminals, one terminal being connected to the conductor means, and another terminal of the bi-directional silicon controlled rectifier being connected to the means responsive to the sleep threshold condition; e. a transistor having a plurality of terminals, including a collector, a base and emitter, means connecting the emitter to the gate of the bi-directional silicon controlled rectifier; f. a plurality of low voltage direct current sources, each source having a plurality of terminals, including a positive and a Negative terminal, means connecting one low voltage source to the emitter base junction of the transistor; and g. a plurality of control wires, one control wire being connected to the base of the transistor and one control wire being connected to one of the low voltage direct current sources.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |