Patent US1781888A successfully refreshed from Google Patents.
Patent US3620685A successfully refreshed from Google Patents.
US3620685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial flow catalyst reactor
Assignee: Phillips Petroleum Co
•
Filing: 1969-07-30
•
Granted: 1971-11-16
•
Expires: 1989-07-30
Abstract
Abstract A radial flow catalyst reactor designed to provide maximum area of exposure of catalyst to a fluid feed while yet providing for rapid removal of effluent of the reaction from the reactor. For larger reactors, an internal space-occupying thumb reduces fluidflow space and increases the rapidity of escape of the effluent. The reactor and catalyst cases are designed to allow for overfill to permit settling of catalyst particles in the cases without bypassing of the catalyst.
Inventors
- 👤 Ronald S Rogers
- 👤 Oliver P Proctor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:07
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0403; B01J8/0407; B01J8/0411; B01J8/0207; B01J8/0214
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
42 words
The apparatus according to claim 1 wherein said means to seal the top of said outer cylindeR comprises said upper top of said sealed thumb which extends over and seals both the top of the outer cylinder and said inner annulus space.
Claim 2
Dependent Claim
31 words
The apparatus according to claim 2 wherein is disposed a plurality of catalyst-retaining cylinders defining a plurality of inner annuli one less in number than the number of said catalyst-retaining cylinders.
Claim 3
Dependent Claim
33 words
The apparatus according to claim 3 wherein the materials of construction for said shell are ferrous alloys or titanium alloys; and wherein said catalyst-retaining cylinders are constructed from ferrous alloys or high-temperature-tolerant ceramics.
References Cited (Backward Citations)
US1682787A
Cited
US2173844A
Cited
US2363738A
Cited
US2525276A
Cited
US2517525A
Cited
US2969318A
Cited
US3288874A
Cited
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 |