US4095212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote electric state tester
Assignee: DUSHANE STEVEN
•
Filing: 1977-06-27
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Granted: 1978-06-13
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Expires: 1997-06-27
Abstract
Abstract A tester for determining the state of an electric circuit at a location remote from the circuit is disclosed. The tester includes a transmitter connected to the circuit to be tested which transmits a different output signal for each state of the circuit to be tested and a combination receiver-indicator which is responsive to the output signals as transmitted from the transmitter.
Inventors
- 👤 Billy Paul Pruitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:38
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/145; G01R31/00; G01R31/50; G01R31/58; G01R31/60; G01R31/66; G01R31/67
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
A remote live circuit tester for determining the condition of a circuit to be tested comprising, in combination: a transmitter with an input and an output responsive to the receipt of an electrical signal at the input, the output having two states, one state corresponding to power on in the circuit and one state corresponding to power off in the circuit, means for electrically connecting the circuit to be tested to the input of the transmitter, a receiver responsive to the output states transmitted from the transmitter, and an indicator responsive to the states received by the receiver whereby the state of the indicator indicates the condition of the circuit to be tested.
Claim 2
Dependent Claim
113 words
A remote live circuit tester for determining the condition of a circuit to be tested comprising, in combination: a transmitter with an input and an output responsive to the receipt of an electrical signal at the input, the output having two states, one state corresponding to power on in the circuit and one state corresponding to power off in the circuit, means for electrically connecting the circuit to be tested to the input of the transmitter, a receiver responsive to the output states transmitted from the transmitter, and an indicator responsive to the states received by the receiver whereby the state of the indicator indicates the condition of the circuit to be tested.
Claim 3
Dependent Claim
40 words
A tester according to claim 1 wherein the transmitter comprises, in combination: a transmitting device for transmitting signals receivable by the receiver, and a means responsive to the condition of the circuit to be tested for activating the transmitting device.
Claim 4
Dependent Claim
37 words
A remote live circuit tester according to claim 2 wherein the means for activating the transmitting device comprises a switch between the transmitting device and power for the transmitting device switchable by the circuit to be tested.
Claim 5
Dependent Claim
54 words
A remote live circuit tester according to claim 3 wherein the receiver comprises, in combination: a receiving device, and a means for responding to the receiving device, and wherein the indicator is responsive to the means for responding to the receiving device whereby the indicator is responsive to the signals received by the receiver.
Claim 6
Dependent Claim
34 words
A remote live circuit tester according to claim 4 wherein the means for responding to the receiving device comprises a switch between the indicator and power for the indicator switchable by the receiving device.
Claim 7
Dependent Claim
54 words
A remote live circuit tester according to claim 1 wherein the receiver comprises, in combination: a receiving device, and a means for responding to the receiving device, and wherein the indicator in responsive to the means for responding to the receiving device whereby the indicator is responsive to the signals received by the receiver.
Claim 8
Dependent Claim
34 words
A remote live circuit tester according to claim 6 wherein the means for responding to the receiving device comprises a switch between the indicator and power for the indicator switchable by the receiving device.
References Cited (Backward Citations)
US2142304A
Cited
US2698921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |