Patent US3186808A successfully refreshed from Google Patents.
US3186808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for dosing reagents in automatic analyzers or other intermittently operating chemical apparatus
Assignee: Individual
•
Filing: 1961-05-19
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Granted: 1965-06-01
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Anscherlik Arnost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:06
CPC Classifications
G; G01; G01N; G01N31/00; B; B01; B01J; B01J4/00; B01J4/02; B01L; B01L3/00; B01L3/02; B01L3/0289; B01L3/0293; G01N1/00; G01N1/28; G01N1/38; G01N21/00; G01N21/75; G01N21/77; G01N21/78; G01N35/00; G01N35/10; G01N35/1002; G01N35/1095; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A DEVICE FOR DOING A LIQUID COMPRISING, IN COMBINATION: (A) A DISCHARGE PIPE ADAPTED FOR INTERMITTENT PASSAGE OF A FIRST LIQUID IN A DOWNWARD DIRECTION WHEN THE DEVICE IS IN THE NORMAL OPERATING POSITION THEREOF, SAID PIPE HAVING A CONSTRICTED PORTION; (B) A CLOSED DOSING VESSEL EXTENDING VERTICALLY AND HAVING A TOP PORTION AND A BOTTOM PORTION, WHEN THE DEVICE IS IN SAID NORMAL OPERATING POSITION; (C) LIQUID SUPPLY VESSEL MEANS FOR DEFINING A PREDETERMINED LEVEL OF A SECOND LIQUID IN SAID NORMAL POSITION OF THE DEVICE; (D) A CONNECTING TUBE HAVING TWO TERMINAL PORTIONS AND A PORTION INTERMEDIATE SAID TERMINAL PORTIONS, SAID TERMINAL PORTIONS RESPECTIVELY COMMUNICATING WITH THE TOP PORTION OF SAID DOSING VESSEL AND WITH A PORTION OF SAID DISCHARGE PIPE UPWARDLY SPACED FROM SAID CONSTRICTED PORTION IN SAID NORMAL POSITION OF THE DEVICE;
Claim 2
Independent Claim
136 words
A DEVICE FOR DOING A LIQUID COMPRISING, IN COMBINATION: (A) A DISCHARGE PIPE ADAPTED FOR INTERMITTENT PASSAGE OF A FIRST LIQUID IN A DOWNWARD DIRECTION WHEN THE DEVICE IS IN THE NORMAL OPERATING POSITION THEREOF, SAID PIPE HAVING A CONSTRICTED PORTION; (B) A CLOSED DOSING VESSEL EXTENDING VERTICALLY AND HAVING A TOP PORTION AND A BOTTOM PORTION, WHEN THE DEVICE IS IN SAID NORMAL OPERATING POSITION; (C) LIQUID SUPPLY VESSEL MEANS FOR DEFINING A PREDETERMINED LEVEL OF A SECOND LIQUID IN SAID NORMAL POSITION OF THE DEVICE; (D) A CONNECTING TUBE HAVING TWO TERMINAL PORTIONS AND A PORTION INTERMEDIATE SAID TERMINAL PORTIONS, SAID TERMINAL PORTIONS RESPECTIVELY COMMUNICATING WITH THE TOP PORTION OF SAID DOSING VESSEL AND WITH A PORTION OF SAID DISCHARGE PIPE UPWARDLY SPACED FROM SAID CONSTRICTED PORTION IN SAID NORMAL POSITION OF THE DEVICE;
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |