Patent US3323017A successfully refreshed from Google Patents.
US3323017A
Expired / Lapsed
US
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Overload protector for a source of electrical energy
Assignee: RTX Corp
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Filing: 1964-01-28
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Granted: 1967-05-30
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Expires: 1984-01-28
Abstract
No abstract record available.
Inventors
- 👤 Austen V Powell
- 👤 Robert E Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/02; H02H7/00; H02H7/10; H02H7/12; H02H7/122; H02H7/1227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
AN OVERLOAD PROTECTOR FOR A SOURCE OF ELECTRICAL ENERGY, ADAPTED TO BE CONNECTED TO A LOAD WHICH IS TO BE ENERGIZED THEREBY, COMPRISING: AN IMPEDANCE ELEMENT ADAPTED TO BE CONNECTED BETWEEN THE SOURCE OF ELECTRICAL ENERGY AND THE LOAD, VOLTAGE CONTROLLED SWITCH MEANS CONNECTED IN PARALLEL WITH SAID IMPEDANCE, SAID SWITCH MEANS BEING SETTABLE INTO A CONDUCTIVE STATE IN RESPONSE TO A CONTROL VOLTAGE IN EXCESS OF A PREDETERMINED MAGNITUDE AND OTHERWISE BEING IN A NONCONDUCTIVE STATE; SENSING MEANS FOR SENSING A VOLTAGE ACROSS THE LOAD, CONTROL MEANS ELECTRICALLY CONNECTED TO SAID SENSING MEANS FOR GENERATING A CONTROL VOLTAGE PROPORTIONAL TO THE LOAD VOLATAGE, CONDUCTOR MEANS FOR APPLYING SAID CONTROL VOLTAGE TO SAID SWITCH MEANS WHEREBY SAID SWITCH MEANS CONDUCTS AT ALL TIMES WHEN SAID CONTROL VOLTAGE IS ABOVE SAID PREDETERMINED MAGNITUDE THEREBY SHORT CIRCUITING SAID IMPEDANCE ELEMENT DURING NORMAL OPERATION, SAID IMPEDANCE ELEMENT BEING PLACED IN SERIES WITH THE LOAD WHEN SAID CONTROL VOLTAGE FALLS BELOW SAID PREDETERMINED MAGNITUDE.
Claim 2
Dependent Claim
160 words
AN OVERLOAD PROTECTOR FOR A SOURCE OF ELECTRICAL ENERGY, ADAPTED TO BE CONNECTED TO A LOAD WHICH IS TO BE ENERGIZED THEREBY, COMPRISING: AN IMPEDANCE ELEMENT ADAPTED TO BE CONNECTED BETWEEN THE SOURCE OF ELECTRICAL ENERGY AND THE LOAD, VOLTAGE CONTROLLED SWITCH MEANS CONNECTED IN PARALLEL WITH SAID IMPEDANCE, SAID SWITCH MEANS BEING SETTABLE INTO A CONDUCTIVE STATE IN RESPONSE TO A CONTROL VOLTAGE IN EXCESS OF A PREDETERMINED MAGNITUDE AND OTHERWISE BEING IN A NONCONDUCTIVE STATE; SENSING MEANS FOR SENSING A VOLTAGE ACROSS THE LOAD, CONTROL MEANS ELECTRICALLY CONNECTED TO SAID SENSING MEANS FOR GENERATING A CONTROL VOLTAGE PROPORTIONAL TO THE LOAD VOLATAGE, CONDUCTOR MEANS FOR APPLYING SAID CONTROL VOLTAGE TO SAID SWITCH MEANS WHEREBY SAID SWITCH MEANS CONDUCTS AT ALL TIMES WHEN SAID CONTROL VOLTAGE IS ABOVE SAID PREDETERMINED MAGNITUDE THEREBY SHORT CIRCUITING SAID IMPEDANCE ELEMENT DURING NORMAL OPERATION, SAID IMPEDANCE ELEMENT BEING PLACED IN SERIES WITH THE LOAD WHEN SAID CONTROL VOLTAGE FALLS BELOW SAID PREDETERMINED MAGNITUDE.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |