US3322401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impellers and mixing apparatus
Assignee: Colortex SA Spain
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Filing: 1965-07-13
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Granted: 1967-05-30
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Expires: 1985-07-13
Abstract
No abstract record available.
Inventors
- 👤 Mersch Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:39
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/051; B01F27/054; B01F27/0541; B01F27/11; B01F27/115; B01F27/1152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
IN MIXING APPARATUS HAVING CONTAINER MEANS FOR HOLDING MATERIALS TO BE MIXED AND A SHAFT EXTENDING INTO SAID CONTAINER MEANS AND DRIVEN ROTATIONALLY UNDIRECTIONALLY IN OPERATION THE IMPROVEMENT WHICH COMPRISES A MIXING IMPELLER COMPRISING A SUPPORT PLATE MOUNTED CONCENTRICALLY ON SAID SHAFT AND ROTATING UNDIRECTIONALLY THEREWITH, SAID SUPPORT PLATE BEING POSITIONED IN OPERATION IN MATERIAL HELD IN SAID CONTAINER TO BE MIXED, A PLURALITY OF VANES EACH HAVING A RECTILINEAR UPSTANDING FACE PORTION AND A GEAR PORTION, SAID VANES BEING SWIVELLY MOUNTED BY SAID GEAR PORTIONS ON SAID SUPPORT PLATE AND SPACED CIRCUMFERENTIALLY THEREAROUND ADJACENT THE PERIPHERY OF SAID SUPPORT PLATE WITH SAID RECTILINEAR UPSTANDING FACE PORTIONS PROJECTING FROM SAID SUPPORT PLATE AND SAID GEAR PORTIONS APPROXIMATELY PARALLEL TO SAID SUPPORT PLATE SWIVELLING MEANS LOCATED ABOVE SAID SUPPORT PLATE, SAID SWIVELLING MEANS ENGAGING THE GEAR PORTIONS OF SAID VANES FOR SIMULTANEOUSLY PIVOTING ALL OF SAID VANES TO SECURED SELECTED ANGLES TO RESPECTIVE TANGENTS TO THE PERIPHERY OF THE SUPPORT PLATE AT
Claim 2
Dependent Claim
161 words
IN MIXING APPARATUS HAVING CONTAINER MEANS FOR HOLDING MATERIALS TO BE MIXED AND A SHAFT EXTENDING INTO SAID CONTAINER MEANS AND DRIVEN ROTATIONALLY UNDIRECTIONALLY IN OPERATION THE IMPROVEMENT WHICH COMPRISES A MIXING IMPELLER COMPRISING A SUPPORT PLATE MOUNTED CONCENTRICALLY ON SAID SHAFT AND ROTATING UNDIRECTIONALLY THEREWITH, SAID SUPPORT PLATE BEING POSITIONED IN OPERATION IN MATERIAL HELD IN SAID CONTAINER TO BE MIXED, A PLURALITY OF VANES EACH HAVING A RECTILINEAR UPSTANDING FACE PORTION AND A GEAR PORTION, SAID VANES BEING SWIVELLY MOUNTED BY SAID GEAR PORTIONS ON SAID SUPPORT PLATE AND SPACED CIRCUMFERENTIALLY THEREAROUND ADJACENT THE PERIPHERY OF SAID SUPPORT PLATE WITH SAID RECTILINEAR UPSTANDING FACE PORTIONS PROJECTING FROM SAID SUPPORT PLATE AND SAID GEAR PORTIONS APPROXIMATELY PARALLEL TO SAID SUPPORT PLATE SWIVELLING MEANS LOCATED ABOVE SAID SUPPORT PLATE, SAID SWIVELLING MEANS ENGAGING THE GEAR PORTIONS OF SAID VANES FOR SIMULTANEOUSLY PIVOTING ALL OF SAID VANES TO SECURED SELECTED ANGLES TO RESPECTIVE TANGENTS TO THE PERIPHERY OF THE SUPPORT PLATE AT
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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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |