US3257175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonation apparatus
Assignee: Chemithon Corp
•
Filing: 1964-03-25
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Granted: 1966-06-21
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Expires: 1984-03-25
Abstract
No abstract record available.
Inventors
- 👤 Richard J Brooks
- 👤 Burton J Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:16
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01F; B01F27/00; B01F27/27; B01F27/272; B01J; B01J10/00; B01J10/02; B01J19/00; B01J19/18; B01J19/1862; C; C01; C01B; C01B17/00; C01B17/69; C01B17/74; C01B17/76; C01B17/80; C01B17/806; C07; C07B; C07B45/00; C07B45/02; C07C; C07C303/00; C07C303/02; C07C303/04; C07C303/06; C07C303/24; B01F25/00; B01F2025/91; B01F2025/911; B01F27/80; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00083; B01J2219/00087; B01J2219/00094; B01J2219/00105; B01J2219/0011; B01J2219/0015; B01J2219/00155; B01J2219/00159; B01J2219/00162; B01J2219/00164; B01J2219/00168; B01J2219/00177; B01J2219/18; B01J2219/182; B01J2219/185; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A MIXING APPARATUS COMPRISING AN ELONGATED HOUSING PROVIDED WITH AN INLET MEANS AND AN OUTLET MEANS, A ROTABLE SHAFT JOURNALLED IN SAID HOUSING AND EXTENDING SUBSTANTIALLY AXIALLY THEREOF, A CYLINDRICAL ROTOR MOUNTED ON SAID SHAFT, A PLURALITY OF MIXING BLADES MOUNTED ON SAID ROTOR, SAID BLADES BEING EQUALLY SPACED AND SPIRALLED AT MOST 1/2 TURN OVER THE ENTIRE LENGTH OF THE ROTOR AND HAVING A DEPTH OF BETWEEN 1/16 INCH, THE CONSTRUCTION AND ARRANGEMENT BEING THAT THE DISTANCE BETWEEN THE EDGES OF THE MIXING BLADES AND THE INNER WALL OF THE HOUSING IS, AT MOST, .040 INCH, AND THE DISTANCE BETWEEN THE SURFACE OF THE ROTOR AND THE INNER WALL OF THE HOUSING BEING AT MOST 1/4 INCH.
Claim 2
Dependent Claim
118 words
A MIXING APPARATUS COMPRISING AN ELONGATED HOUSING PROVIDED WITH AN INLET MEANS AND AN OUTLET MEANS, A ROTABLE SHAFT JOURNALLED IN SAID HOUSING AND EXTENDING SUBSTANTIALLY AXIALLY THEREOF, A CYLINDRICAL ROTOR MOUNTED ON SAID SHAFT, A PLURALITY OF MIXING BLADES MOUNTED ON SAID ROTOR, SAID BLADES BEING EQUALLY SPACED AND SPIRALLED AT MOST 1/2 TURN OVER THE ENTIRE LENGTH OF THE ROTOR AND HAVING A DEPTH OF BETWEEN 1/16 INCH, THE CONSTRUCTION AND ARRANGEMENT BEING THAT THE DISTANCE BETWEEN THE EDGES OF THE MIXING BLADES AND THE INNER WALL OF THE HOUSING IS, AT MOST, .040 INCH, AND THE DISTANCE BETWEEN THE SURFACE OF THE ROTOR AND THE INNER WALL OF THE HOUSING BEING AT MOST 1/4 INCH.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |