US3123086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:23
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/135; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0335
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A METHOD FOR CONTROLLING A PROCESS HAVING A MANIPULATED PROCESS VARIABLE, A CONTROLLED PROCESS VARIABLE, AND A PROCESS INPUT VARIABLE COMPRISING PASSING A STREAM OF FLUID THROUGH A HEAT EXCHANGE ZONE AND THEN THROUGH A HEAT SINK ZONE, CONTROLLING THE HEAT TRANSFER TO SAID FLUID IN SAID HEAT EXCHANGE ZONE RESPONSIVE TO SAID MANIPULATED PROCESS VARIABLE, CONTROLLING THE RATE OF FLOW OF SAID FLUID RESPONSIVE TO SAID PROCESS INPUT VARIABLE, ESTABLISHING A FIRST SIGNAL REPRESENTATIVE OF THE TEMPERATURE OF SAID FLUID UPSTREAM OF SAID HEAT SINK ZONE AND DOWNSTREAM OF SAID HEAT EXCHANGE ZONE, ESTABLISHING A SECOND SIGNAL REPRESENTATIVE OF THE TEMPERATURE OF SAID FLUID DOWNSTREAM OF SAID HEAT SINK ZONE, AND CONTROLLING SAID MANIPULATED VARIABLE RESPONSIVE TO SAID CONTROLLED PROCESS VARIABLE AND SAID FIRST AND SECOND SIGNALS.
Claim 2
Independent Claim
128 words
A METHOD FOR CONTROLLING A PROCESS HAVING A MANIPULATED PROCESS VARIABLE, A CONTROLLED PROCESS VARIABLE, AND A PROCESS INPUT VARIABLE COMPRISING PASSING A STREAM OF FLUID THROUGH A HEAT EXCHANGE ZONE AND THEN THROUGH A HEAT SINK ZONE, CONTROLLING THE HEAT TRANSFER TO SAID FLUID IN SAID HEAT EXCHANGE ZONE RESPONSIVE TO SAID MANIPULATED PROCESS VARIABLE, CONTROLLING THE RATE OF FLOW OF SAID FLUID RESPONSIVE TO SAID PROCESS INPUT VARIABLE, ESTABLISHING A FIRST SIGNAL REPRESENTATIVE OF THE TEMPERATURE OF SAID FLUID UPSTREAM OF SAID HEAT SINK ZONE AND DOWNSTREAM OF SAID HEAT EXCHANGE ZONE, ESTABLISHING A SECOND SIGNAL REPRESENTATIVE OF THE TEMPERATURE OF SAID FLUID DOWNSTREAM OF SAID HEAT SINK ZONE, AND CONTROLLING SAID MANIPULATED VARIABLE RESPONSIVE TO SAID CONTROLLED PROCESS VARIABLE AND SAID FIRST AND SECOND SIGNALS.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |