Patent US3152602A successfully refreshed from Google Patents.
US3152602A
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Continuous optimal controller
Assignee: EIDP Inc
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Filing: 1961-06-14
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Granted: 1964-10-13
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Expires: 1981-06-14
Abstract
No abstract record available.
Inventors
- 👤 James R Hackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:06
CPC Classifications
G; G05; G05B; G05B13/00; Y; Y10; Y10S; Y10S236/00; Y10S236/08; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2506; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A CONTINUOUS OPTIMAL PROCESS CONTROLLER COMPRISING, IN COMBINATION, A PNEUMATIC LOGIC SECTION SENSING BOTH THE FACT OF AND THE RATE OF A CHANGE IN THE PROCESS VARIABLE DISPLAYING AN OPTIMUM INHERENT IN SAID PROCESS WITH REFERENCE TO WHICH CONTROL IS BASED IN A DIRECTION AWAY FROM SAID OPTIMUM AND GENERATING AN OUTPUT SIGNAL DISTINCTIVE AS TO SAID DIRECTION OF SAID CHANGE IN SAID PROCESS VARIABLE, AND A PNEUMATIC CONTROL SIGNAL GENERATION SECTION RESPONSIVE TO SAID OUTPUT SIGNAL FROM SAID LOGIC SECTION GENERAT-
Claim 2
Dependent Claim
82 words
A CONTINUOUS OPTIMAL PROCESS CONTROLLER COMPRISING, IN COMBINATION, A PNEUMATIC LOGIC SECTION SENSING BOTH THE FACT OF AND THE RATE OF A CHANGE IN THE PROCESS VARIABLE DISPLAYING AN OPTIMUM INHERENT IN SAID PROCESS WITH REFERENCE TO WHICH CONTROL IS BASED IN A DIRECTION AWAY FROM SAID OPTIMUM AND GENERATING AN OUTPUT SIGNAL DISTINCTIVE AS TO SAID DIRECTION OF SAID CHANGE IN SAID PROCESS VARIABLE, AND A PNEUMATIC CONTROL SIGNAL GENERATION SECTION RESPONSIVE TO SAID OUTPUT SIGNAL FROM SAID LOGIC SECTION GENERAT-
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |