US3248608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generator protective device
Assignee: Dynamic Controls HS Inc
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Filing: 1961-03-15
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Granted: 1966-04-26
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Expires: 1981-03-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Farkas
- 👤 Richard J Coburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:30
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN COMBINATION WITH AN ALTERNATING CURRENT GENERATOR AND A LOAD, AT LEAST ONE LED CONDUCTOR CONNECTED WITH THE GENERATOR, A GENERATOR AND/OR LOAD SHUTOFF RELAY, AN AMPLIFIER MEANS CONNECTED WITH SAID RELAY AND ADAPTED TO EFFECT SHUTOFF OPERATION OF THE SAME RESPONSIVE TO A PREDETERMINED SIGNAL VOLTAGE, AN OVERVOLTAGE CIRCUIT CONNECTED WITH SAID AMPLIFIER MEANS AND WITH SAID LEAD CONDUCTOR AND OPERABLE TO PROVIDE A SIGNAL VOLTAGE FOR OPERATING SAID AMPLIFIER MEANS WHEN A GENERATOR OUTPUT VOLTAGE EXCEEDS A PREDETERMINED MAXIMUM LEVEL, AN UNDERVOLTAGE AND STARTING CIRCUIT CONNECTED WITH SAID AMPLIFIER MEANS AND WITH SAID LEAD CONDUCTOR AND OPERABLE PROVIDE A SIGNAL VOLTAGE FOR OPERATING SAID AMPLIFIER MEANS WHEN A GENERATOR OUTPUT VOLTAGE FIRST EXCEEDS A
Claim 2
Dependent Claim
116 words
IN COMBINATION WITH AN ALTERNATING CURRENT GENERATOR AND A LOAD, AT LEAST ONE LED CONDUCTOR CONNECTED WITH THE GENERATOR, A GENERATOR AND/OR LOAD SHUTOFF RELAY, AN AMPLIFIER MEANS CONNECTED WITH SAID RELAY AND ADAPTED TO EFFECT SHUTOFF OPERATION OF THE SAME RESPONSIVE TO A PREDETERMINED SIGNAL VOLTAGE, AN OVERVOLTAGE CIRCUIT CONNECTED WITH SAID AMPLIFIER MEANS AND WITH SAID LEAD CONDUCTOR AND OPERABLE TO PROVIDE A SIGNAL VOLTAGE FOR OPERATING SAID AMPLIFIER MEANS WHEN A GENERATOR OUTPUT VOLTAGE EXCEEDS A PREDETERMINED MAXIMUM LEVEL, AN UNDERVOLTAGE AND STARTING CIRCUIT CONNECTED WITH SAID AMPLIFIER MEANS AND WITH SAID LEAD CONDUCTOR AND OPERABLE PROVIDE A SIGNAL VOLTAGE FOR OPERATING SAID AMPLIFIER MEANS WHEN A GENERATOR OUTPUT VOLTAGE FIRST EXCEEDS A
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |