Patent US3215865A successfully refreshed from Google Patents.
US3215865A
Expired / Lapsed
US
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Automatic switch controller
Assignee: Individual
•
Filing: 1962-01-05
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Granted: 1965-11-02
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Expires: 1982-01-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Brooks H Grimme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:12
CPC Classifications
H; H02; H02H; H02H11/00; H02H11/004; H02H11/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A DEVICE FOR SELECTIVELY CONNECTING A THREE-PHASE SOURCE TO A LOAD WHEREIN SAID SOURCE INCLUDES INDIVIDUAL PHASE VOLTAGES HAVING A PREDETERMINED PHASE SEQUENCE; SAID DEVICE COMPRISING CIRCUIT MEANS CONNECTED IN SHUNT WITH SAID THREE PHASE SOURCE FOR PROVIDING A POTENTIAL RESPONSIVE IN MAGNITUDE TO THE PHASE SEQUENCE AND MAGNITUDES OF THE PHASE VOLTAGES, SWITCHING MEANS FOR CONNECTING THE SOURCE TO THE LOAD AND CONNECTING MEANS FOR CONNECTING THE SWITCHING MEANS TO THE CIRCUIT MEANS WHEREBY THE SWITCHING MEANS OPERATES IN RESPONSE TO A PREDETERMINED MAGNITUDE OF THE POTENTIAL.
Claim 2
Independent Claim
88 words
A DEVICE FOR SELECTIVELY CONNECTING A THREE-PHASE SOURCE TO A LOAD WHEREIN SAID SOURCE INCLUDES INDIVIDUAL PHASE VOLTAGES HAVING A PREDETERMINED PHASE SEQUENCE; SAID DEVICE COMPRISING CIRCUIT MEANS CONNECTED IN SHUNT WITH SAID THREE PHASE SOURCE FOR PROVIDING A POTENTIAL RESPONSIVE IN MAGNITUDE TO THE PHASE SEQUENCE AND MAGNITUDES OF THE PHASE VOLTAGES, SWITCHING MEANS FOR CONNECTING THE SOURCE TO THE LOAD AND CONNECTING MEANS FOR CONNECTING THE SWITCHING MEANS TO THE CIRCUIT MEANS WHEREBY THE SWITCHING MEANS OPERATES IN RESPONSE TO A PREDETERMINED MAGNITUDE OF THE POTENTIAL.
References Cited (Backward Citations)
GB636411A
Cited
US2914703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |