Patent US3768649A successfully refreshed from Google Patents.
Patent US3023089A successfully refreshed from Google Patents.
US3023089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction vessel
Assignee: International Minerals and Chemical Corp
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Filing: 1958-07-28
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Granted: 1962-02-27
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard B Graves
- 👤 Benjamin P Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:28
CPC Classifications
B; B01; B01J; B01J16/00; B01J19/00; B01J19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
AN APPARATUS WHICH COMPRISES IN COMBINATION A MAIN REACTION VESSEL IN FLUID COMMUNICATION WITH TWO SEPARATE CHAMBERS, (A) A PRELIMINARY MIXING CHAMBER HAVING THE LOWERMOST PORTION THEREOF AND A LOWER PORTION OF SAID MAIN REACTION VESSEL CONNECTED BY A FIRST PASSAGEWAY THROUGH WHICH SOLID PARTICLES AND LIQUID MAY FLOW FROM SAID PRELIMINARY MIXING CHAMBER INTO SAID MAIN REACTION VESSEL, THE BOTTOM OF SAID PRELIMINARY MIXING CHAMBER INCLINED DOWNWARD TOWARD SAID MAIN REACTION VESSEL AND MEETING SAID MAIN REACTION VESSEL ADJACENT SAID FIRST PASSAGEWAY, AND (B) A SETTLING CHAMBER HAVING THE LOWERMOST PORTION THEREOF AND A LOWER PORTION OF SAID MAIN REACTION VESSEL CONNECTED BY A SECOND PASSAGEWAY THROUGH WHICH SOLID PARTICLES AND LIQUID MAY FLOW, THE BOTTOM OF SAID CHAMBER BEING INCLINED DOWNWARD TOWARD SAID MAIN REACTION VESSEL AND MEETING SAID MAIN REACTION VESSEL ADJACENT SAID SECOND PASSAGEWAY, AN OPENING IN AN UPPER PORTION OF SAID MAIN REACTION VESSEL FOR WITHDRAWAL OF SOLID MATERIAL FROM SAID MAIN REACTION VESSEL, AND AN OUTLET IN AN UPPER PORTION OF SAID SETTLING CHAMBER, SAID OUTLET POSITIONED BELOW THE LEVEL OF THE OPENING IN THE UPPER PORTION OF SAID MAIN REACTION VESSEL AND ABOVE THE LEVEL OF SAID SECOND PASSAGEWAY.
Claim 2
Independent Claim
196 words
AN APPARATUS WHICH COMPRISES IN COMBINATION A MAIN REACTION VESSEL IN FLUID COMMUNICATION WITH TWO SEPARATE CHAMBERS, (A) A PRELIMINARY MIXING CHAMBER HAVING THE LOWERMOST PORTION THEREOF AND A LOWER PORTION OF SAID MAIN REACTION VESSEL CONNECTED BY A FIRST PASSAGEWAY THROUGH WHICH SOLID PARTICLES AND LIQUID MAY FLOW FROM SAID PRELIMINARY MIXING CHAMBER INTO SAID MAIN REACTION VESSEL, THE BOTTOM OF SAID PRELIMINARY MIXING CHAMBER INCLINED DOWNWARD TOWARD SAID MAIN REACTION VESSEL AND MEETING SAID MAIN REACTION VESSEL ADJACENT SAID FIRST PASSAGEWAY, AND (B) A SETTLING CHAMBER HAVING THE LOWERMOST PORTION THEREOF AND A LOWER PORTION OF SAID MAIN REACTION VESSEL CONNECTED BY A SECOND PASSAGEWAY THROUGH WHICH SOLID PARTICLES AND LIQUID MAY FLOW, THE BOTTOM OF SAID CHAMBER BEING INCLINED DOWNWARD TOWARD SAID MAIN REACTION VESSEL AND MEETING SAID MAIN REACTION VESSEL ADJACENT SAID SECOND PASSAGEWAY, AN OPENING IN AN UPPER PORTION OF SAID MAIN REACTION VESSEL FOR WITHDRAWAL OF SOLID MATERIAL FROM SAID MAIN REACTION VESSEL, AND AN OUTLET IN AN UPPER PORTION OF SAID SETTLING CHAMBER, SAID OUTLET POSITIONED BELOW THE LEVEL OF THE OPENING IN THE UPPER PORTION OF SAID MAIN REACTION VESSEL AND ABOVE THE LEVEL OF SAID SECOND PASSAGEWAY.
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) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |