Patent US3231750A successfully refreshed from Google Patents.
US3231750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condition-responsive electronic control affording continuous energization
Assignee: Johnson Controls International Inc
•
Filing: 1962-06-29
•
Granted: 1966-01-25
•
Expires: 1982-06-29
Abstract
No abstract record available.
Inventors
- 👤 Burley Billy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:47
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A CONDITION-RESPONSIVE CONTROL SYSTEM, COMPRISING A CURRENT-RESPONSIVE LOAD HAVING A PAIR OF TERMINALS; A CONSTANT FIRST SOURCE OF ALTERNATING-CURRENT VOLTAGE; FIRST LOAD CIRCUIT MEANS INCLUDING A FIRST UNI-DIRECTIONALLY CONDUCTIVE DEVICE FOR CONNECTING SAID FIRST VOLTAGE SOURCE ACROSS SAID LOAD TERMINALS; A SECOND SOURCE OF ALTERNATING-CURRENT VOLTAGE; CURRENT-CONTROLLING MEANS INCLUIDNG A PAIR OF POWER CIRCUIT ELECTRODES AND A CONTROL ELECTRODE; SECOND LOAD CIRCUIT MEANS INCLUDING A SECOND UNI-DIRECTIONALLY CONDUCTIVE DEVICE FOR CONNECTING SAID POWER CIRCUIT ELECTRODES IN SERIES WITH SAID SECOND VOLTAGE SOURCE ACROSS SAID LOAD TERMINALS, SAID FIRST AND SECOND VOLTAGE SOURCES HAVING THE SAME FREQUENCY AND THE SAME INSTANTANEOUS PHASE RELATIONSHIP RELATIVE TO ONE OF SAID LOAD TERMINALS, AND SECOND DEVICE HAVING A POLARITY PERMITTING CONDUCTION OF SAID CURRENT-CONTROLLING MEANS, BOTH OF SAID DEVICES HAVING THE SAME POLARITY RELATIVE TO ONE OF SAID LOAD TERMINALS; AND
Claim 2
Dependent Claim
137 words
A CONDITION-RESPONSIVE CONTROL SYSTEM, COMPRISING A CURRENT-RESPONSIVE LOAD HAVING A PAIR OF TERMINALS; A CONSTANT FIRST SOURCE OF ALTERNATING-CURRENT VOLTAGE; FIRST LOAD CIRCUIT MEANS INCLUDING A FIRST UNI-DIRECTIONALLY CONDUCTIVE DEVICE FOR CONNECTING SAID FIRST VOLTAGE SOURCE ACROSS SAID LOAD TERMINALS; A SECOND SOURCE OF ALTERNATING-CURRENT VOLTAGE; CURRENT-CONTROLLING MEANS INCLUIDNG A PAIR OF POWER CIRCUIT ELECTRODES AND A CONTROL ELECTRODE; SECOND LOAD CIRCUIT MEANS INCLUDING A SECOND UNI-DIRECTIONALLY CONDUCTIVE DEVICE FOR CONNECTING SAID POWER CIRCUIT ELECTRODES IN SERIES WITH SAID SECOND VOLTAGE SOURCE ACROSS SAID LOAD TERMINALS, SAID FIRST AND SECOND VOLTAGE SOURCES HAVING THE SAME FREQUENCY AND THE SAME INSTANTANEOUS PHASE RELATIONSHIP RELATIVE TO ONE OF SAID LOAD TERMINALS, AND SECOND DEVICE HAVING A POLARITY PERMITTING CONDUCTION OF SAID CURRENT-CONTROLLING MEANS, BOTH OF SAID DEVICES HAVING THE SAME POLARITY RELATIVE TO ONE OF SAID LOAD TERMINALS; AND
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |