US3304498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage, polarity and frequency tester having a. c.-d. c. compensation and gas tube indicators
Assignee: Ideal Industries Inc
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Filing: 1963-05-15
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Granted: 1967-02-14
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:39
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/145; G01R19/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A VOLTAGE TESTER CIRCUIT INCLUDING AN INPUT, A PLURALITY OF VOLTAGE INDICATORS CONNECTED GENERALLY IN SERIES ACROSS SAID INPUT AND EACH ARRANGED TO BE ACTIVATED AT A DIFFERENT INPUT VOLTAGE, A COMPENSATING NETWORK CONNECTED BETWEEN THE INPUT AND AT LEAST ONE OF SAID VOLTAGE INDICATORS, WHICH NETWORK PROVIDES GENERALLY THE SAME VOLTAGE AMPLITUDE AT SAID ONE INDICATOR FOR BOTH A.C. AND D.C. VOLTAGE INPUTS, A LOW FREQUENCY INDICATOR CONNECTED TO SAID INPUT, AND A LOW FREQUENCY FILTER NETWORK FOR ACTIVATING IT, AND A HIGH FREQUENCY FILTER NETWORK INCLUDING A FIRST RESISTOR AND A FIRST CAPACITOR IN SERIES ACROSS SAID INPUT, A SECOND RESISTOR AND A SECOND CAPACITOR IN SERIES CONNECTION ACROSS SAID FIRST RESISTOR, AND A HIGH FREQUENCY INDICATING MEANS IN PARALLEL WITH SAID SECOND RESISTOR.
Claim 2
Dependent Claim
126 words
A VOLTAGE TESTER CIRCUIT INCLUDING AN INPUT, A PLURALITY OF VOLTAGE INDICATORS CONNECTED GENERALLY IN SERIES ACROSS SAID INPUT AND EACH ARRANGED TO BE ACTIVATED AT A DIFFERENT INPUT VOLTAGE, A COMPENSATING NETWORK CONNECTED BETWEEN THE INPUT AND AT LEAST ONE OF SAID VOLTAGE INDICATORS, WHICH NETWORK PROVIDES GENERALLY THE SAME VOLTAGE AMPLITUDE AT SAID ONE INDICATOR FOR BOTH A.C. AND D.C. VOLTAGE INPUTS, A LOW FREQUENCY INDICATOR CONNECTED TO SAID INPUT, AND A LOW FREQUENCY FILTER NETWORK FOR ACTIVATING IT, AND A HIGH FREQUENCY FILTER NETWORK INCLUDING A FIRST RESISTOR AND A FIRST CAPACITOR IN SERIES ACROSS SAID INPUT, A SECOND RESISTOR AND A SECOND CAPACITOR IN SERIES CONNECTION ACROSS SAID FIRST RESISTOR, AND A HIGH FREQUENCY INDICATING MEANS IN PARALLEL WITH SAID SECOND RESISTOR.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |