US3020130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digestion apparatus and method
Assignee: Bayer Corp
•
Filing: 1959-08-06
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Granted: 1962-02-06
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Expires: 1979-08-06
Abstract
No abstract record available.
Inventors
- 👤 Ferrari Andres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:54
CPC Classifications
H; H05; H05B; H05B3/00; F; F24; F24H; F24H1/00; F24H1/10; F24H1/101; F24H1/102; G; G01; G01N; G01N31/00; G01N31/002; G01N35/00; G01N35/08; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/117497; Y10T436/17; Y10T436/176152; Y10T436/25; Y10T436/25125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A CONTINUOUS METHOD OF DIGESTION AND ANALYSIS OF A SUBSTANCE FOR NITROGEN DETERMINATION, ACCORDING TO WHICH THERE IS EMPLOYED A HORIZONTAL ROTARY MEMBER PROVIDED WITH A LIQUID PASSAGE EXTENDING HELICALLY AROUND THE AXIS OF ROTATION OF SAID MEMBER, SAID METHOD COMPRISING ROTATING SAID MEMBER ABOUT SAID AXIS AND HEATING SAID MEMBER WHILE IT ROTATES, INTRODUCING INTO SAID LIQUID PASSAGE A STREAM OF LIQUID CONTAINING THE SUBSTANCE TO BE DIGESTED AND AN ACID FOR DIGESTING SAID SUBSTANCE, REGULATING THE QUANTITY OF SAID LIQUIDS WHICH FLOW INTO AND OUT OF SAID CYLINDER SO THAT THE LIQUID FLOWS IN SAID HELICAL PASSAGE ONLY DURING THE ROTATION OF SAID ROTARY MEMBER SO THAT MIXING OF SUCCESSIVE PORTIONS OF THE LIQUID STREAM DURING
Claim 2
Dependent Claim
118 words
A CONTINUOUS METHOD OF DIGESTION AND ANALYSIS OF A SUBSTANCE FOR NITROGEN DETERMINATION, ACCORDING TO WHICH THERE IS EMPLOYED A HORIZONTAL ROTARY MEMBER PROVIDED WITH A LIQUID PASSAGE EXTENDING HELICALLY AROUND THE AXIS OF ROTATION OF SAID MEMBER, SAID METHOD COMPRISING ROTATING SAID MEMBER ABOUT SAID AXIS AND HEATING SAID MEMBER WHILE IT ROTATES, INTRODUCING INTO SAID LIQUID PASSAGE A STREAM OF LIQUID CONTAINING THE SUBSTANCE TO BE DIGESTED AND AN ACID FOR DIGESTING SAID SUBSTANCE, REGULATING THE QUANTITY OF SAID LIQUIDS WHICH FLOW INTO AND OUT OF SAID CYLINDER SO THAT THE LIQUID FLOWS IN SAID HELICAL PASSAGE ONLY DURING THE ROTATION OF SAID ROTARY MEMBER SO THAT MIXING OF SUCCESSIVE PORTIONS OF THE LIQUID STREAM DURING
References Cited (Backward Citations)
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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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |