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US3307447A
Expired / Lapsed
US
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Fluid cell with jet inlet directed toward window
Assignee: Beckman Coulter Inc
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Filing: 1963-11-04
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Granted: 1967-03-07
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Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Carleton
- 👤 Alto Palo
- 👤 Gropper Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:59
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N21/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A FLUID CELL FOR OPTICAL ANALYZING APPARATUS COMPRISING: A BODY OF MATERIAL; AN ELONGATED CHANNEL FORMED IN SAID BODY; WINDOWS DISPOSED AT EACH END OF SAID CHANNEL TO DEFINE THEREWITH A FLUID CHAMBER; AN INLET OPENING FORMED IN SAID BODY AND COMMUNICATING WITH ONE END OF SAID CHANNEL; AN OUTLET OPENING FORMED IN SAID BODY AND COMMUNICATING WITH THE OTHER END OF SAID CHANNEL; SAID INLET OPENING BEING DIRECTED TOWARD THE ADJACENT WINDOW WHEREBY FLUID PASSING THROUGH THE INLET OPENING IMPINGES UPON SAID WINDOW; AND SAID INLET OPENING HAVING A CROSS-SECTIONAL AREA WHICH IS SUBSTANTIALLY LESS THAN THE CROSS-SECTIONAL AREA OF THE OUTLET OPENING AND SUFFICIENTLY SMALL TO FORM A JET STREAM TO CAUSE MIXING OF FLUID IN THE ADJACENT PORTION OF THE CHAMBER.
Claim 2
Dependent Claim
124 words
A FLUID CELL FOR OPTICAL ANALYZING APPARATUS COMPRISING: A BODY OF MATERIAL; AN ELONGATED CHANNEL FORMED IN SAID BODY; WINDOWS DISPOSED AT EACH END OF SAID CHANNEL TO DEFINE THEREWITH A FLUID CHAMBER; AN INLET OPENING FORMED IN SAID BODY AND COMMUNICATING WITH ONE END OF SAID CHANNEL; AN OUTLET OPENING FORMED IN SAID BODY AND COMMUNICATING WITH THE OTHER END OF SAID CHANNEL; SAID INLET OPENING BEING DIRECTED TOWARD THE ADJACENT WINDOW WHEREBY FLUID PASSING THROUGH THE INLET OPENING IMPINGES UPON SAID WINDOW; AND SAID INLET OPENING HAVING A CROSS-SECTIONAL AREA WHICH IS SUBSTANTIALLY LESS THAN THE CROSS-SECTIONAL AREA OF THE OUTLET OPENING AND SUFFICIENTLY SMALL TO FORM A JET STREAM TO CAUSE MIXING OF FLUID IN THE ADJACENT PORTION OF THE 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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |