US3138294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic diluting apparatus
Assignee: Coulter Electronics Inc
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Filing: 1960-11-17
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Granted: 1964-06-23
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Expires: 1980-11-17
Abstract
No abstract record available.
Inventors
- 👤 Coulter Wallace Henry
- 👤 Jr Joseph Richard Coulter
- 👤 Claps William Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:23
CPC Classifications
B; B01; B01J; B01J4/00; B01J4/008; G; G01; G01N; G01N1/00; G01N1/28; G01N1/38; G05; G05D; G05D11/00; G05D11/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
AUTOMATIC DILUTING APPARATUS COMPRISING, A CLOSED VESSEL HAVING AN INLET PORT AND AN OUTLET PORT AND A PISTON FREELY MOVEABLE BETWEEN SAID PORTS IN OPPOSITE DIRECTIONS FOR SWEEPING OUT A KNOWN VOLUME OF FLUID FROM THE VESSEL THROUGH EITHER ONE OF SAID PORTS DEPENDING UPON THE DIRECTION OF MOVEMENT OF THE PISTION, A FLUID CONTROL VALVE HAVING INDIVIDUAL FLUID CONDUIT CONNECTIONS WITH EACH OF SAID PORTS, A FLUID DISPENSING TUBE HAVING A DISCHARGE OUTLET AND A FLUID DELIVER TUBE ADAPTED TO BE CONNECTED TO A SOURCE OF DILUENT UNDER PRESSURE, SAID VALVE BEING SELECTIVELY OPERABLE TO CONNECT EIGHTER ONE OF SAID CONDUIT CONNECTIONS TO EITHER ONE OF SAID DISPENSING AND DELIVERY TUBES WITH THE OTHER OF SAID CONDUIT CONNECTIONS CONNECTED CONCURRENTLY TO THE OTHER OF SAID DISPENSING AND DELIVERY TUBES, AND MEANS FOR SELECTIVELY INTRODUCING INTO THE APPARTATUS THROUGH SAID DISCHARGE OUTLET A QUANTITY OF CONCENTRATE REQUIRED TO PREPARE SAID KNOWN VOLUME OF A DILUTED SOLUTION OF SAID DILUENT HAVING A PREDETERMINED CONCENTRATION OF SAID CONCENTRATE THEREIN, SAID VALVE OPERABLE THEREAFTER AUTOMATICALLY TO CAUSE DISCHAGE OF SAID KNOWN VOLUME OF DILUTED SOLUTION THROUGH SAID DISCHARGE OUTLET.
Claim 2
Dependent Claim
186 words
AUTOMATIC DILUTING APPARATUS COMPRISING, A CLOSED VESSEL HAVING AN INLET PORT AND AN OUTLET PORT AND A PISTON FREELY MOVEABLE BETWEEN SAID PORTS IN OPPOSITE DIRECTIONS FOR SWEEPING OUT A KNOWN VOLUME OF FLUID FROM THE VESSEL THROUGH EITHER ONE OF SAID PORTS DEPENDING UPON THE DIRECTION OF MOVEMENT OF THE PISTION, A FLUID CONTROL VALVE HAVING INDIVIDUAL FLUID CONDUIT CONNECTIONS WITH EACH OF SAID PORTS, A FLUID DISPENSING TUBE HAVING A DISCHARGE OUTLET AND A FLUID DELIVER TUBE ADAPTED TO BE CONNECTED TO A SOURCE OF DILUENT UNDER PRESSURE, SAID VALVE BEING SELECTIVELY OPERABLE TO CONNECT EIGHTER ONE OF SAID CONDUIT CONNECTIONS TO EITHER ONE OF SAID DISPENSING AND DELIVERY TUBES WITH THE OTHER OF SAID CONDUIT CONNECTIONS CONNECTED CONCURRENTLY TO THE OTHER OF SAID DISPENSING AND DELIVERY TUBES, AND MEANS FOR SELECTIVELY INTRODUCING INTO THE APPARTATUS THROUGH SAID DISCHARGE OUTLET A QUANTITY OF CONCENTRATE REQUIRED TO PREPARE SAID KNOWN VOLUME OF A DILUTED SOLUTION OF SAID DILUENT HAVING A PREDETERMINED CONCENTRATION OF SAID CONCENTRATE THEREIN, SAID VALVE OPERABLE THEREAFTER AUTOMATICALLY TO CAUSE DISCHAGE OF SAID KNOWN VOLUME OF DILUTED SOLUTION THROUGH SAID DISCHARGE OUTLET.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |