US3284164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for automatic analyzing
Assignee: Hach Co
•
Filing: 1964-12-16
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Granted: 1966-11-08
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Expires: 1984-12-16
Abstract
No abstract record available.
Inventors
- 👤 Clifford C Hach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:24
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
APPARATUS FOR CONTINUOUSLY COMBINING MEASURED QUANTITIES OF TWO FLUIDS IN VARYING PROPORTION COMPRISING, IN COMBINATION, A FRAME BLOCK, SAID BLOCK HAVING A COMBINING PASSAGE WITH A CAPILLARY METERING TUBE AT ONE END OPENING TO A DISCHARGE OUTLET, A FIRST CONDUIT INCLUDING A PASSAGE IN SAID BLOCK FOR CONDUCTING A STREAM OF THE FIRST FLUID TO SAID COMBINING PASSAGE, MEANS DEFINING AN OVERFLOW OUTLET OPENING THROUGH SAID BLOCK TO SAID COMBINING PASSAGE FOR ESTABLISHING A CONSTANT HEAD PRESSURE ON SAID FIRST FLUID IN THE COMBINING PASSAGE, SAID BLOCK HAVING A SECOND METERING TUBE WITH ONE END OPENING INTO THE OTHER END OF SAID SECOND METERING TUBE FOR CONDUCT ING A STREAM OF SAID SECOND FLUID TO SAID COMBINING PASSAGE, AND A VERTICALLY MOVABLE FLOAT VALVE INTERPOSED IN SAID SECOND CONDUIT SO THAT THE HEAD PRESSURE, AND THUS THE FLOW RATE, OF SAID SECOND FLUID TO SAID PASSAGE CAN BE VARIED TO VARY THE PROPORTION OF SAID FLUIDS BEING COMBINED.
Claim 2
Dependent Claim
158 words
APPARATUS FOR CONTINUOUSLY COMBINING MEASURED QUANTITIES OF TWO FLUIDS IN VARYING PROPORTION COMPRISING, IN COMBINATION, A FRAME BLOCK, SAID BLOCK HAVING A COMBINING PASSAGE WITH A CAPILLARY METERING TUBE AT ONE END OPENING TO A DISCHARGE OUTLET, A FIRST CONDUIT INCLUDING A PASSAGE IN SAID BLOCK FOR CONDUCTING A STREAM OF THE FIRST FLUID TO SAID COMBINING PASSAGE, MEANS DEFINING AN OVERFLOW OUTLET OPENING THROUGH SAID BLOCK TO SAID COMBINING PASSAGE FOR ESTABLISHING A CONSTANT HEAD PRESSURE ON SAID FIRST FLUID IN THE COMBINING PASSAGE, SAID BLOCK HAVING A SECOND METERING TUBE WITH ONE END OPENING INTO THE OTHER END OF SAID SECOND METERING TUBE FOR CONDUCT ING A STREAM OF SAID SECOND FLUID TO SAID COMBINING PASSAGE, AND A VERTICALLY MOVABLE FLOAT VALVE INTERPOSED IN SAID SECOND CONDUIT SO THAT THE HEAD PRESSURE, AND THUS THE FLOW RATE, OF SAID SECOND FLUID TO SAID PASSAGE CAN BE VARIED TO VARY THE PROPORTION OF SAID FLUIDS BEING COMBINED.
References Cited (Backward Citations)
US2645463A
Cited
US3102789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |