US3122697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Short circuit protective device
Assignee: Vector Manufacturing Co Inc
•
Filing: 1960-07-20
•
Granted: 1964-02-25
•
Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Kauders Randle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/02; H02H3/06; G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/565; G05F1/569; G05F1/573
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
136 words
AN AUTOMATICALLY RESETTING PROTECTIVE SYSTEM FOR ELECTRICAL SYSTEMS COMPRISING A SWITCH MEANS FOR CONTROLLING THE APPLICATION OF POWER TO AN OUTPUT LINE, TRANSISTOR DETECTORS FOR SENSING THE VOLTAGE ON THE OUTPUT LINE AND ACTUATING SAID SWITCH MEANS TO DISCONNECT THE POWER UPON THE VOLTAGE ON THE OUTPUT LINE FALLING BELOW A GIVEN LEVEL, AND AN ASYMMETRICAL OSCILLATOR PERIODICALLY ENERGIZING SAID TRANSISTOR DETECTORS TO BRIEFLY ACTUATE SAID SWITCH MEANS TO APPLY POWER TO SAID OUTPUT LINE WHEREBY IN THE EVENT THAT THE VOLTAGE LEVEL ON THE OUTPUT LINES IS RESTORED TO ITS ORIGINAL LEVEL DURING SAID BRIEF ACTUATION, SAID TRANSISTOR DETECTORS ENERGIZE SAID SWITCH MEANS TO CONTINUOUSLY APPLY POWER THERETO WHEREAS IF THE VOLTAGE LEVEL AT THE OUTPUT LINE IS NOT SO RESTORED, SAID SWITCH MEANS IS AGAIN ACTUATED TO DISCONNECT THE POWER AFTER EACH BRIEF ACTUATION.
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |