Patent US3122003A successfully refreshed from Google Patents.
US3122003A
Expired / Lapsed
US
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Assignee: American Radiator and Standard Sanitary Corp
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Filing: 1962-03-13
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Granted: 1964-02-25
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Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 Alfred D Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:15
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/02; F25B49/022; F25B2400/00; F25B2400/07; F25B2400/075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN COMBINATION, A PLURALITY OF CONDITION-CHANGING ELECTRICAL POWER DEVICES; A PLURALITY OF CONDITION RESPONSIVE CONTROL DEVICES ADAPTED TO INDIVIDUALLY CONTROL THE OPERATION OF INDIVIDUAL ONES OF SAID POWER DEVICES; AND SEQUENCE-CHANGING MEANS INTERCONNECTED WITH THE CONTROL DEVICES AND POWER DEVICES SO THAT DURING ONE CYCLE A GIVEN POWER DEVICE IS CONTROLLED BY ONE OF THE CONTROL DEVICES AND DURING THE SUCCEEDING CYCLE THE GIVEN POWER DEVICE IS CONTROLLED BY ANOTHER CONTROL DEVICE; SAID SEQUENCE CHANGING MEANS INCLUDING FIRST AND SECOND SWITCHES OPERABLY CONNECTED SO THAT DURING ONE CYCLE THE FIRST SWITCH CONTROLS CURRENT FLOW TO THE GIVEN POWER DEVICE AND THE SECOND SWITCH CONTROLS CURRENT FLOW TO THE OTHER POWER DEVICE, AND DURING THE SUCCEEDING CYCLE THE FIRST SWITCH CONTROLS CURRENT FLOW TO THE OTHER POWER DEVICE AND THE SECOND SWITCH CONTROLS CURRENT FLOW TO THE GIVEN POWER DEVICE.
Claim 2
Dependent Claim
139 words
IN COMBINATION, A PLURALITY OF CONDITION-CHANGING ELECTRICAL POWER DEVICES; A PLURALITY OF CONDITION RESPONSIVE CONTROL DEVICES ADAPTED TO INDIVIDUALLY CONTROL THE OPERATION OF INDIVIDUAL ONES OF SAID POWER DEVICES; AND SEQUENCE-CHANGING MEANS INTERCONNECTED WITH THE CONTROL DEVICES AND POWER DEVICES SO THAT DURING ONE CYCLE A GIVEN POWER DEVICE IS CONTROLLED BY ONE OF THE CONTROL DEVICES AND DURING THE SUCCEEDING CYCLE THE GIVEN POWER DEVICE IS CONTROLLED BY ANOTHER CONTROL DEVICE; SAID SEQUENCE CHANGING MEANS INCLUDING FIRST AND SECOND SWITCHES OPERABLY CONNECTED SO THAT DURING ONE CYCLE THE FIRST SWITCH CONTROLS CURRENT FLOW TO THE GIVEN POWER DEVICE AND THE SECOND SWITCH CONTROLS CURRENT FLOW TO THE OTHER POWER DEVICE, AND DURING THE SUCCEEDING CYCLE THE FIRST SWITCH CONTROLS CURRENT FLOW TO THE OTHER POWER DEVICE AND THE SECOND SWITCH CONTROLS CURRENT FLOW TO THE GIVEN POWER DEVICE.
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 |