US3128993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for commingling slowly flowing liquids
Assignee: —
•
Filing: —
•
Granted: 1964-04-14
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Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:07
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; B; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/433; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A CONTINUOUS LIQUID SAMPLE AND REAGENT MIXING DEVICE COMPRISING: (A) A SAMPLE TUBE; (B) A REAGENT INJECTOR TUBE OF SMALLER INTERNAL DIAMETER THAN SAID SAMPLE TUBE, SAID REAGENT INJECTOR TUBE PROJECTING THROUGH THE WALL OF SAID SAMPLE TUBE TO A POINT WITHIN THE INTERIOR OF SAID SAMPLE TUBE AND HAVING AN OPEN END WHOSE AXIS IS SUBSTANTIALLY PERPENDICULAR TO SAID SAMPLE TUBE; (C) A MIXING CHAMBER FORMING A CONTINUATION OF THE SAMPLE TUBE DOWNSTREAM FROM SAID REAGENT INJECTOR TUBE, SAID MIXING CHAMBER COMPRISING A SHORT LENGTH OF TUBING HAVING AN INTERNAL DIAMETER OF FROM ABOUT TWO TO ABOUT FOUR TIMES THE INTERNAL DIAMETER OF SAID SAMPLE TUBE; AND (D) AN EXIT TUBE HAVING AN INTERNAL DIAMETER SMALLER THAN THAT OF THE MIXING CHAMBER.
Claim 2
Dependent Claim
123 words
A CONTINUOUS LIQUID SAMPLE AND REAGENT MIXING DEVICE COMPRISING: (A) A SAMPLE TUBE; (B) A REAGENT INJECTOR TUBE OF SMALLER INTERNAL DIAMETER THAN SAID SAMPLE TUBE, SAID REAGENT INJECTOR TUBE PROJECTING THROUGH THE WALL OF SAID SAMPLE TUBE TO A POINT WITHIN THE INTERIOR OF SAID SAMPLE TUBE AND HAVING AN OPEN END WHOSE AXIS IS SUBSTANTIALLY PERPENDICULAR TO SAID SAMPLE TUBE; (C) A MIXING CHAMBER FORMING A CONTINUATION OF THE SAMPLE TUBE DOWNSTREAM FROM SAID REAGENT INJECTOR TUBE, SAID MIXING CHAMBER COMPRISING A SHORT LENGTH OF TUBING HAVING AN INTERNAL DIAMETER OF FROM ABOUT TWO TO ABOUT FOUR TIMES THE INTERNAL DIAMETER OF SAID SAMPLE TUBE; AND (D) AN EXIT TUBE HAVING AN INTERNAL DIAMETER SMALLER THAN THAT OF THE MIXING CHAMBER.
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |