Patent US3116753A successfully refreshed from Google Patents.
US3116753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial process control apparatus
Assignee: Schneider Electric Systems USA Inc
•
Filing: 1961-12-21
•
Granted: 1964-01-07
•
Expires: 1981-12-21
Abstract
No abstract record available.
Inventors
- 👤 Wilfred H Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:25
CPC Classifications
G; G05; G05B; G05B9/00; G05B9/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN AN INDUSTRIAL PROCESS CONTROL SYSTEM OF THE TYPE HAVING A PROCESS CONTROLLER ADAPTED TO RECEIVE A CONDITION MEASUREMENT SIGNAL AND TO PRODUCE A CORRESPONDING CONTROL SIGNAL FOR TRANSMISSION TO A REMOTELY-LOCATED OPERATING DEVICE FOR ADJUSTABLY SETTING A CHARACTERISTIC OF THE PROCESS, AND WHEREIN ELECTRICAL MEANS RESPONSIVE TO SAID CONTROL SIGNAL ARE PROVIDED FOR SETTING SAID OPERATING DEVICE IN ACCORDANCE WITH SAID CONTROL SIGNAL; THE COMBINATION OF A MAIN POWER CIRCUIT FOR FURNISHING ELECTRICAL POWER TO VARIOUS COMPONENTS INCLUDING SAID ELECTRICAL MEANS DURING NORMAL OPERATION OF THE PROCESS, A LOWCAPACITY STANDBY POWER CIRCUIT ADAPTED TO OPERATE SAID ELECTRICAL MEANS UPON FAILURE OF SAID MAIN POWER CIRCUIT BUT HAVING INSUFFICIENT CAPACITY FOR CONTINUED OPERATION
Claim 2
Dependent Claim
113 words
IN AN INDUSTRIAL PROCESS CONTROL SYSTEM OF THE TYPE HAVING A PROCESS CONTROLLER ADAPTED TO RECEIVE A CONDITION MEASUREMENT SIGNAL AND TO PRODUCE A CORRESPONDING CONTROL SIGNAL FOR TRANSMISSION TO A REMOTELY-LOCATED OPERATING DEVICE FOR ADJUSTABLY SETTING A CHARACTERISTIC OF THE PROCESS, AND WHEREIN ELECTRICAL MEANS RESPONSIVE TO SAID CONTROL SIGNAL ARE PROVIDED FOR SETTING SAID OPERATING DEVICE IN ACCORDANCE WITH SAID CONTROL SIGNAL; THE COMBINATION OF A MAIN POWER CIRCUIT FOR FURNISHING ELECTRICAL POWER TO VARIOUS COMPONENTS INCLUDING SAID ELECTRICAL MEANS DURING NORMAL OPERATION OF THE PROCESS, A LOWCAPACITY STANDBY POWER CIRCUIT ADAPTED TO OPERATE SAID ELECTRICAL MEANS UPON FAILURE OF SAID MAIN POWER CIRCUIT BUT HAVING INSUFFICIENT CAPACITY FOR CONTINUED OPERATION
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |