Patent US2326930A successfully refreshed from Google Patents.
US3483543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial process controller by-pass apparatus
Assignee: Schneider Electric Systems USA Inc
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Filing: 1966-12-02
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Granted: 1969-12-09
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Expires: 1986-12-02
Abstract
No abstract record available.
Inventors
- 👤 Allan L Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:44
CPC Classifications
G; G05; G05B; G05B9/00; G05B9/02; G05B9/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
APPARATUS FOR USE WITH AN INDUSTRIAL PROCESS CONTROL SYSTEM AND COMPRISING, IN COMBINATION, AN INSTRUMENT PANEL CARRYING A PLURALITY OF PROCESS CONTROLLERS EACH INCLUDING AN AMPLIFIER ARRANGED TO PRODUCE BOTH AN AUTOMATIC CONTROL SIGNAL AND A MANUALLY-ADJUSTABLE CONTROL SIGNAL, EACH OF SAID CONTROLLERS BEING ADAPTED TO BE REMOVED AS A COMPLETE ENTITY FROM SAID PANEL FOR REPAIR OR OTHER SERVICING; EACH OF SAID CONTROLLERS HAVING AN OUTPUT CIRCUIT CONNECTED TO A LOAD CIRCUIT FOR CONDUCTING EITHER OF SAID CONTROL SIGNALS TO A LOAD DEVICE FOR OPERATING A CORRESPONDING PROCESS VALVE OR THE LIKE; A CONTROLLERS BY-PASS UNIT SEPARATE FROM SAID PROCESS CONTROLLERS AND INCLUDING POWER SUPPLY MEANS FOR DEVELOPING A BY-PASS SIGNAL TO BE TRANSMITTED TO A LOAD DEVICE IN PLACE OF A CONTROL SIGNAL FROM ANY ONE OF SAID PROCESS CONTROLLERS, THEREBY TO PERMIT THE BY-PASSED CONTROLLER TO BE REMOVED WHILE RETAIN-
Claim 2
Dependent Claim
143 words
APPARATUS FOR USE WITH AN INDUSTRIAL PROCESS CONTROL SYSTEM AND COMPRISING, IN COMBINATION, AN INSTRUMENT PANEL CARRYING A PLURALITY OF PROCESS CONTROLLERS EACH INCLUDING AN AMPLIFIER ARRANGED TO PRODUCE BOTH AN AUTOMATIC CONTROL SIGNAL AND A MANUALLY-ADJUSTABLE CONTROL SIGNAL, EACH OF SAID CONTROLLERS BEING ADAPTED TO BE REMOVED AS A COMPLETE ENTITY FROM SAID PANEL FOR REPAIR OR OTHER SERVICING; EACH OF SAID CONTROLLERS HAVING AN OUTPUT CIRCUIT CONNECTED TO A LOAD CIRCUIT FOR CONDUCTING EITHER OF SAID CONTROL SIGNALS TO A LOAD DEVICE FOR OPERATING A CORRESPONDING PROCESS VALVE OR THE LIKE; A CONTROLLERS BY-PASS UNIT SEPARATE FROM SAID PROCESS CONTROLLERS AND INCLUDING POWER SUPPLY MEANS FOR DEVELOPING A BY-PASS SIGNAL TO BE TRANSMITTED TO A LOAD DEVICE IN PLACE OF A CONTROL SIGNAL FROM ANY ONE OF SAID PROCESS CONTROLLERS, THEREBY TO PERMIT THE BY-PASSED CONTROLLER TO BE REMOVED WHILE RETAIN-
References Cited (Backward Citations)
US3044046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |