US3126903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Set point bellows
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:03
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/44; G05B11/48; G05B11/50; Y; Y10; Y10S; Y10S137/00; Y10S137/90; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2365
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A MASTER-SLAVE CONTROLLER SYSTEM INCLUDING A SET POINT TRANSMITTER ADJUSTABLE TO PROVIDE A SET POINT SIGNAL; A SLAVE CONTROLLER HAVING A CONTROL SIGNAL OUTPUT, A SET POINT SIGNAL INPUT AND A SLAVE PROCESS VARIABLE INPUT; A MASTER CONTROLLER HAVING A SETTING SIGNAL OUTPUT, A SET POINT SIGNAL INPUT AND A MASTER PROCESS VARIABLE INPUT; SWITCHING MEANS OPERABLE TO ANY ONE OF SEVERAL STATES, A FIRST OF SAID STATES BEING ONE IN WHICH SAID SET POINT SIGNAL INPUT OF SAID SLAVE CONTROLLER IS CONNECTED TO SAID TRANSMITTER TO RECEIVE SAID SET POINT SIGNAL; A SECOND OF SAID STATES BEING ONE IN WHICH SAID SET POINT INPUT OF SAID SLAVE CONTROLLER IS CONNECTED TO SAID SETTING SIGNAL OUTPUT OF SAID MASTER CONTROLLER AND SAID SET POINT INPUT OF SAID MASTER CONTROLLER IS CONNECTED TO SAID TRANSMITTER TO RECEIVE SAID SET POINT SIGNAL; AND EACH OF SAID CONTROLLERS BEING OF THE TYPE WHEREIN ITS SIGNAL OUTPUT IS A FUNCTION OF THE RELATION BETWEEN SIGNALS APPLIED TO ITS INPUTS.
Claim 2
Dependent Claim
165 words
A MASTER-SLAVE CONTROLLER SYSTEM INCLUDING A SET POINT TRANSMITTER ADJUSTABLE TO PROVIDE A SET POINT SIGNAL; A SLAVE CONTROLLER HAVING A CONTROL SIGNAL OUTPUT, A SET POINT SIGNAL INPUT AND A SLAVE PROCESS VARIABLE INPUT; A MASTER CONTROLLER HAVING A SETTING SIGNAL OUTPUT, A SET POINT SIGNAL INPUT AND A MASTER PROCESS VARIABLE INPUT; SWITCHING MEANS OPERABLE TO ANY ONE OF SEVERAL STATES, A FIRST OF SAID STATES BEING ONE IN WHICH SAID SET POINT SIGNAL INPUT OF SAID SLAVE CONTROLLER IS CONNECTED TO SAID TRANSMITTER TO RECEIVE SAID SET POINT SIGNAL; A SECOND OF SAID STATES BEING ONE IN WHICH SAID SET POINT INPUT OF SAID SLAVE CONTROLLER IS CONNECTED TO SAID SETTING SIGNAL OUTPUT OF SAID MASTER CONTROLLER AND SAID SET POINT INPUT OF SAID MASTER CONTROLLER IS CONNECTED TO SAID TRANSMITTER TO RECEIVE SAID SET POINT SIGNAL; AND EACH OF SAID CONTROLLERS BEING OF THE TYPE WHEREIN ITS SIGNAL OUTPUT IS A FUNCTION OF THE RELATION BETWEEN SIGNALS APPLIED TO ITS INPUTS.
References Cited (Backward Citations)
US2969080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |