US2898200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic titrator circuit
Assignee: E H SARGENT AND CO
•
Filing: 1955-06-28
•
Granted: 1959-08-04
•
Expires: 1975-06-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Karr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:32
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/16; G01N31/162; G01N31/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
APPARATUS FOR TITRATING A SOLUTION, COMPRISING: MEANS, INCLUDING ELECTRODES IN SAID SOLUTION, FOR PRODUCING A SIGNAL WHICH IS A FUNCTION OF THE POTENTIOMETRIC CURVE FOR THE TITRATION; AN OSCILLATOR HAVING A CONTROL ELEMENT TO WHICH SAID SIGNAL IS CONNECTED FOR CAUSING OSCILLATION DURING A PORTION OF SAID CURVE AND TERMINATING SUBSTANTIALLY AT THE EQUIVALENCE POINT OF SAID TITRATION, PROVIDING A SQUARE WAVE PULSE OF OSCILLATIONS; MEANS FOR DIFFERENTIATING SAID SQUARE WAVE PULSE, PROVIDING A SHARP POSITIVE PULSE AT THE END THEREOF; A GRID CONTROLLED GAS TUBE HAVING A CONTROL ELEMENT TO WHICH SAID DIFFERENTIATED PULSE IS APPLIED; AND MEANS IN THE ANODE CIRCUIT OF SAID GAS TUBE FOR INDICATING THE END POINT OF SAID TITRATION WHEN THE TUBE CONDUCTS.
Claim 2
Dependent Claim
119 words
APPARATUS FOR TITRATING A SOLUTION, COMPRISING: MEANS, INCLUDING ELECTRODES IN SAID SOLUTION, FOR PRODUCING A SIGNAL WHICH IS A FUNCTION OF THE POTENTIOMETRIC CURVE FOR THE TITRATION; AN OSCILLATOR HAVING A CONTROL ELEMENT TO WHICH SAID SIGNAL IS CONNECTED FOR CAUSING OSCILLATION DURING A PORTION OF SAID CURVE AND TERMINATING SUBSTANTIALLY AT THE EQUIVALENCE POINT OF SAID TITRATION, PROVIDING A SQUARE WAVE PULSE OF OSCILLATIONS; MEANS FOR DIFFERENTIATING SAID SQUARE WAVE PULSE, PROVIDING A SHARP POSITIVE PULSE AT THE END THEREOF; A GRID CONTROLLED GAS TUBE HAVING A CONTROL ELEMENT TO WHICH SAID DIFFERENTIATED PULSE IS APPLIED; AND MEANS IN THE ANODE CIRCUIT OF SAID GAS TUBE FOR INDICATING THE END POINT OF SAID TITRATION WHEN THE TUBE CONDUCTS.
References Cited (Backward Citations)
US2666691A
Cited
US2726936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |