Patent US3381944A successfully refreshed from Google Patents.
US3381944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conveying and blending solids
Assignee: WR Grace and Co
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Filing: 1963-11-21
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Granted: 1968-05-07
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Expires: 1983-11-21
Abstract
No abstract record available.
Inventors
- 👤 Joe D Clary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:09
CPC Classifications
B; B01; B01F; B01F29/00; B01F29/60; B01F29/63; B01F29/25; B01F29/40; B01F29/401; B01F29/4011; B01F29/40118; B01F29/62; B01F29/402; B01F29/4021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN A BLENDER-CONVEYOR COMBINATION, A MIXER GENERALLY HORIZONTALLY DISPOSED, SUPPORTED FOR ROTATING AROUND ITS LONGITUDINAL AXIS, EQUIPPED WITH MEANS FOR EFFECTING SAID ROTATION, AND PROVIDED WITH AN ENTRANCE AT ONE END FOR THE ADMITTANCE OF MATERIAL AND AN EXIT AT THE OTHER END FOR THE DISCHARGE OF MATERIAL, THE IMPROVEMENT COMPRISING A MIXER CONSISTING OF A PLURALITY OF TWIN-SHELL BLENDERS CONNECTED IN SERIES WITH ONE END OF SAID SERIES OF BLENDERS IN COMMUNICATION WITH A FIRST CLOSED CYLINDER, AND WITH THE OTHER END OF SAID SERIES OF BLENDERS IN COMMUNICATION WITH A SECOND CLOSED CYLINDER IN WHICH THE SERIES OF TWIN-SHELL BLENDERS IS CONSTRUCTED WITHIN A CLOSED CYLINDER HAVING AN ENTRANCE AT ONE END AND AN EXIT AT THE OTHER BY ATTACHING TWO SERIES OF V-SHAPED WEDGE-LIKE BAFFLES TO THE OPPOSITE SIDES OF THE INSIDE SURFACE OF SAID CYLINDER IN ALTERNATE ORDER, WHEREBY THE APICES OF ONE SERIES OF SAID BAFFLES ARE POSITIONED ABOUT OPPOSITE THE DEPRESSIONS BETWEEN THE MEMBERS OF THE OPPOSING SERIES OF SAID BAFFLES TO DEFINE A TORTUOUS PASSAGE THROUGH SAID BLENDER-CONVEYOR.
Claim 2
Dependent Claim
175 words
IN A BLENDER-CONVEYOR COMBINATION, A MIXER GENERALLY HORIZONTALLY DISPOSED, SUPPORTED FOR ROTATING AROUND ITS LONGITUDINAL AXIS, EQUIPPED WITH MEANS FOR EFFECTING SAID ROTATION, AND PROVIDED WITH AN ENTRANCE AT ONE END FOR THE ADMITTANCE OF MATERIAL AND AN EXIT AT THE OTHER END FOR THE DISCHARGE OF MATERIAL, THE IMPROVEMENT COMPRISING A MIXER CONSISTING OF A PLURALITY OF TWIN-SHELL BLENDERS CONNECTED IN SERIES WITH ONE END OF SAID SERIES OF BLENDERS IN COMMUNICATION WITH A FIRST CLOSED CYLINDER, AND WITH THE OTHER END OF SAID SERIES OF BLENDERS IN COMMUNICATION WITH A SECOND CLOSED CYLINDER IN WHICH THE SERIES OF TWIN-SHELL BLENDERS IS CONSTRUCTED WITHIN A CLOSED CYLINDER HAVING AN ENTRANCE AT ONE END AND AN EXIT AT THE OTHER BY ATTACHING TWO SERIES OF V-SHAPED WEDGE-LIKE BAFFLES TO THE OPPOSITE SIDES OF THE INSIDE SURFACE OF SAID CYLINDER IN ALTERNATE ORDER, WHEREBY THE APICES OF ONE SERIES OF SAID BAFFLES ARE POSITIONED ABOUT OPPOSITE THE DEPRESSIONS BETWEEN THE MEMBERS OF THE OPPOSING SERIES OF SAID BAFFLES TO DEFINE A TORTUOUS PASSAGE THROUGH SAID BLENDER-CONVEYOR.
References Cited (Backward Citations)
US977897A
Cited
US2907555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |