Patent US3398860A successfully refreshed from Google Patents.
US3398860A
Expired / Lapsed
US
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Metering devices for liquids
Assignee: Bayer Corp
•
Filing: 1965-10-18
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Granted: 1968-08-27
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Battig Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:13
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/168; A61M5/16877; A61M5/16881; B; B01; B01L; B01L3/00; B01L3/02; B01L3/0241; G; G01; G01F; G01F11/00; G01F13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A DEVICE FOR FINE METERING OF LIQUIDS, WHICH CONSIST OF A TUBULAR BODY TO WHICH THE LIQUID IS SUPPLIED AT ONE END, AND FROM WHICH THE LIQUID IS WITHDRAWN AT THE OTHER END, AND A PIN FITTING EXACTLY IN THE TUBULAR BODY AND INSERTED IN ONE END THEREOF SO AS TO BE AXIALLY DISPLACEABLE, PROVIDING A HELICAL CAPILLARY CHANNEL IN THE INTERNAL SURFACE OF THE TUBULAR BODY OR IN THE EXTERNAL SURFACE OF THE PIN, THE IMPROVEMENT CONSISTING IN THAT THE TUBULAR BODY HAS AT ONE END A NOZZLE AND AT ITS OTHER END A WIDE AXIAL BORE, INTO WHICH OPENS A CONNECTING NOZZLE PROVIDED ON THE SIDE OF THE BODY, THE NOZZLE BEING CONNECTED BY A THREADED BORE, AND THAT THE PIN, THE THREADED PART OF WHICH IS SCREWABLE INTO THIS THREADED BORE, IS GUIDED IN A
Claim 2
Dependent Claim
139 words
IN A DEVICE FOR FINE METERING OF LIQUIDS, WHICH CONSIST OF A TUBULAR BODY TO WHICH THE LIQUID IS SUPPLIED AT ONE END, AND FROM WHICH THE LIQUID IS WITHDRAWN AT THE OTHER END, AND A PIN FITTING EXACTLY IN THE TUBULAR BODY AND INSERTED IN ONE END THEREOF SO AS TO BE AXIALLY DISPLACEABLE, PROVIDING A HELICAL CAPILLARY CHANNEL IN THE INTERNAL SURFACE OF THE TUBULAR BODY OR IN THE EXTERNAL SURFACE OF THE PIN, THE IMPROVEMENT CONSISTING IN THAT THE TUBULAR BODY HAS AT ONE END A NOZZLE AND AT ITS OTHER END A WIDE AXIAL BORE, INTO WHICH OPENS A CONNECTING NOZZLE PROVIDED ON THE SIDE OF THE BODY, THE NOZZLE BEING CONNECTED BY A THREADED BORE, AND THAT THE PIN, THE THREADED PART OF WHICH IS SCREWABLE INTO THIS THREADED BORE, IS GUIDED IN A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |