US3102689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller
Assignee: EIDP Inc
•
Filing: 1962-05-04
•
Granted: 1963-09-03
•
Expires: 1982-05-04
Abstract
No abstract record available.
Inventors
- 👤 Richard S Ditto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:09
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/2451; G05D23/2456
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A TWO-STEP CYCLE ELECTRICAL CONTROLLER COMPRISING IN COMBINATION MEANS GENERATING AN ERROR SIGNAL AS A FUNCTION OF THE DIFFERENCE BETWEEN A PRESELECTED ENVIRONMENTAL CONDITION SET-POINT AND THE AMBIENT CONDITION LEVEL SENSED IN THE LOCATION AS TO WHICH CONTROL OF SAID ENVIRONMENTAL CONDITION IS DESIRED, A POWERED TRANSIENT CURRENT CIRCUIT OF PRESELECTED TIME CONSTANT PROVIDED WITH MEANS MAINTAINING THE "ON" TIME OF SAID CONTROLLER IN INVERSE PROPORTION TO SUBSTANTIALLY THE IMMEDIATELY PRECEDING "OFF" TIME, A MAGNETIC AMPLIFIER BISTABLE SWITCH IN ELECTRICAL CIRCUIT INDEPENDENTLY WITH SAID MEANS GENERATING SAID ERROR SIGNAL AND WITH SAID TRANSIENT CURRENT CIRCUIT SO AS TO BE RESPON-
Claim 2
Dependent Claim
100 words
A TWO-STEP CYCLE ELECTRICAL CONTROLLER COMPRISING IN COMBINATION MEANS GENERATING AN ERROR SIGNAL AS A FUNCTION OF THE DIFFERENCE BETWEEN A PRESELECTED ENVIRONMENTAL CONDITION SET-POINT AND THE AMBIENT CONDITION LEVEL SENSED IN THE LOCATION AS TO WHICH CONTROL OF SAID ENVIRONMENTAL CONDITION IS DESIRED, A POWERED TRANSIENT CURRENT CIRCUIT OF PRESELECTED TIME CONSTANT PROVIDED WITH MEANS MAINTAINING THE "ON" TIME OF SAID CONTROLLER IN INVERSE PROPORTION TO SUBSTANTIALLY THE IMMEDIATELY PRECEDING "OFF" TIME, A MAGNETIC AMPLIFIER BISTABLE SWITCH IN ELECTRICAL CIRCUIT INDEPENDENTLY WITH SAID MEANS GENERATING SAID ERROR SIGNAL AND WITH SAID TRANSIENT CURRENT CIRCUIT SO AS TO BE RESPON-
References Cited (Backward Citations)
US2838644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |