US3748100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1971-04-26
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Granted: 1973-07-24
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Expires: 1991-04-26
Abstract
Abstract A carbon black reactor comprised of a plurality of sections in contiguous relationship, the upstream wall of one of the reactors being positionable to alter the length of the first zone of the reactor.
Inventors
- 👤 G Forseth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:56
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01J; B01J19/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
35 words
The reactor of claim 1 in which the cross sectional area of said upper section is within the range of from about 0.3 to about 0.7 of the cross sectional area of said lower section.
Claim 2
Dependent Claim
21 words
The reactor of claim 1 in which said wall is positionable along the longitudinal axis of said reactor by jack-screw means.
Claim 3
Dependent Claim
21 words
The reactor of claim 1 in which said wall is positionable along the longitudinal axis of said reactor by pulley means.
Claim 4
Dependent Claim
24 words
The reactor of claim 1 in which said wall is adapted with conduit means for introduction of a gaseous fluid peripheral to said wall.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |