US3440492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator and failure circuits
Assignee: TDK Micronas GmbH
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Filing: 1966-09-01
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Granted: 1969-04-22
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Expires: 1986-09-01
Abstract
No abstract record available.
Inventors
- 👤 Doyle V Carmody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:13
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/04; H02J9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A VOLTAGE REGULATOR INCORPORATING A PROTECTION AND WARNING CIRCUIT, COMPRISING: A FIRST TERMINAL UPON WHICH A VOLTAGE IS APPLIED, A SECOND TERMINAL AT GROUND POTENTIAL, MEANS FOR DIVIDING SAID VOLTAGE INTO TWO LOWER VOLTAGES FOR SUPPLY TO A LOAD CIRCUIT, SAID MEANS INCLUDING A RESISTOR AND TWO ZENER DIODES COUPLED IN SERIES BETWEEN SAID FIRST TERMINAL AND SAID SECOND TERMINAL, MEANS SUPPLYING A REFERENCE POTENTIAL, A BRIDGE CIRCUIT CONNECTED TO SENSE ONE OF THE TWO LOWER VOLTAGES AND COMPARE IT WITH SAID REFERENCE POTENTIAL, AND MEANS RESPONSIVE TO IMBALANCE IN SAID BRIDGE CIRCUIT TO DISCONNECT SAID LOWER VOLTAGES FROM SAID LOAD CIRCUIT.
Claim 2
Dependent Claim
102 words
A VOLTAGE REGULATOR INCORPORATING A PROTECTION AND WARNING CIRCUIT, COMPRISING: A FIRST TERMINAL UPON WHICH A VOLTAGE IS APPLIED, A SECOND TERMINAL AT GROUND POTENTIAL, MEANS FOR DIVIDING SAID VOLTAGE INTO TWO LOWER VOLTAGES FOR SUPPLY TO A LOAD CIRCUIT, SAID MEANS INCLUDING A RESISTOR AND TWO ZENER DIODES COUPLED IN SERIES BETWEEN SAID FIRST TERMINAL AND SAID SECOND TERMINAL, MEANS SUPPLYING A REFERENCE POTENTIAL, A BRIDGE CIRCUIT CONNECTED TO SENSE ONE OF THE TWO LOWER VOLTAGES AND COMPARE IT WITH SAID REFERENCE POTENTIAL, AND MEANS RESPONSIVE TO IMBALANCE IN SAID BRIDGE CIRCUIT TO DISCONNECT SAID LOWER VOLTAGES FROM SAID LOAD CIRCUIT.
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) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |