US3620684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuous sulfonation
Assignee: Chemithon Corp
•
Filing: 1966-11-18
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Granted: 1971-11-16
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Expires: 1986-11-18
Abstract
Abstract An apparatus for reaction of fluids comprising two externally cooled substantially concentric, circular reaction surfaces, forming a reaction space therebetween of one-eighth to one-half inch and a rotor located concentrically between the reaction surfaces.
Inventors
- 👤 Richard J Brooks
- 👤 Burton Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:44
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/1887; B01J10/00; B01J10/02; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
21 words
The apparatus according to claim 1 wherein the rotor consists of an intermediate solid skirt and a terminal open veinous network.
Claim 2
Dependent Claim
23 words
The apparatus according to claim 2 wherein the veins are inclined at about a 45* angle from the vertical axis of the apparatus.
Claim 3
Dependent Claim
23 words
The apparatus according to claim 1 containing, exterior of said apparatus, a cooling means for the rapid cooling of the resultant reaction mixture.
Claim 4
Dependent Claim
25 words
The apparatus according to claim 1 wherein the reactant liquid is passed from above to the space between the rotor and the outer reaction surface.
Claim 5
Dependent Claim
48 words
The apparatus according to claim 1 wherein a portion of the reactant liquid is passed from above to the space between the rotor and the outer reaction surface and the remaining reactant liquid is passed from below to the space between the rotor and the inner reaction surface.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |