Patent US1008086A successfully refreshed from Google Patents.
Patent US2840356A successfully refreshed from Google Patents.
US2840356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscous liquid mixing apparatus
Assignee: EIDP Inc
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Filing: 1956-04-05
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Granted: 1958-06-24
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Expires: 1976-04-05
Abstract
No abstract record available.
Inventors
- 👤 Wills Thomas Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:43
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/07; B01F27/072; B01F27/0724; B01F27/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
APPARATUS FOR HOMOGENIZING A STREAM OF VISCOUS LIQUID COMPRISING AN ELONGATED CYLINDRICAL VESSEL HAVING A LIQUID INLET OPENING AT ONE END AND A LIQUID OUTLET OPENING AT THE OPPOSITE END, A DRIVEN SHAFT EXTENDING CENTRALLY OF SAID VESSEL AND FOR SUBSTANTIALLY THE LENGTH THEREOF, A PLURALITY OF FLAT-FACED ROTORS MOUNTED FACE-TOFACE ON, AND DRIVEN BY SAID SHAFT, EACH OF SAID ROTORS MOUNTED IN CONTACT WITH ADJACENT ROTORS AND HAVING FOUR IDENTICAL EQUALLY SPACED FLAT-FACED CURVED VANES LYING IN A PLANE PERPENDICULAR TO THE AXIS OF SAID SHAFT, EACH VANE HAVING A CURVED LEADING EDGE AND TERMINATING IN A CURVED TIP EDGE CORRESPONDING IN CURVATURE TO THE CURVATURE OF THE INSIDE CURVED WALL OF THE VESSEL AND CLOSELY SPACED FROM SAID WALL, THE VANES OF EACH ROTOR HAVING LEADING EDGES OPPOSITELY CURVED TO THE LEADING EDGES OF THE VANES OF THE ROTORS IN CONTACT THEREWITH, SAID ROTORS AND THEIR VANES HAVING A THICKNESS ABOUT 0.3 OF THE INSIDE DIAMETER OF THE VESSEL, AND THE VANES OF ALTERNATE ROTORS BEING DISPLACED ABOUT 45* FROM THE VANES OF THE ROTOR THEREBETWEEN.
Claim 2
Dependent Claim
178 words
APPARATUS FOR HOMOGENIZING A STREAM OF VISCOUS LIQUID COMPRISING AN ELONGATED CYLINDRICAL VESSEL HAVING A LIQUID INLET OPENING AT ONE END AND A LIQUID OUTLET OPENING AT THE OPPOSITE END, A DRIVEN SHAFT EXTENDING CENTRALLY OF SAID VESSEL AND FOR SUBSTANTIALLY THE LENGTH THEREOF, A PLURALITY OF FLAT-FACED ROTORS MOUNTED FACE-TOFACE ON, AND DRIVEN BY SAID SHAFT, EACH OF SAID ROTORS MOUNTED IN CONTACT WITH ADJACENT ROTORS AND HAVING FOUR IDENTICAL EQUALLY SPACED FLAT-FACED CURVED VANES LYING IN A PLANE PERPENDICULAR TO THE AXIS OF SAID SHAFT, EACH VANE HAVING A CURVED LEADING EDGE AND TERMINATING IN A CURVED TIP EDGE CORRESPONDING IN CURVATURE TO THE CURVATURE OF THE INSIDE CURVED WALL OF THE VESSEL AND CLOSELY SPACED FROM SAID WALL, THE VANES OF EACH ROTOR HAVING LEADING EDGES OPPOSITELY CURVED TO THE LEADING EDGES OF THE VANES OF THE ROTORS IN CONTACT THEREWITH, SAID ROTORS AND THEIR VANES HAVING A THICKNESS ABOUT 0.3 OF THE INSIDE DIAMETER OF THE VESSEL, AND THE VANES OF ALTERNATE ROTORS BEING DISPLACED ABOUT 45* FROM THE VANES OF THE ROTOR THEREBETWEEN.
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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |