Patent US2853371A successfully refreshed from Google Patents.
US2853371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure synthesis apparatus
Assignee: Chemical Construction Corp
•
Filing: 1955-09-08
•
Granted: 1958-09-23
•
Expires: 1975-09-08
Abstract
No abstract record available.
Inventors
- 👤 Christensen Axel
- 👤 Robert D Rayfiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:17
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/10; F28D7/12; B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/2425; B01J8/00; B01J8/0005; B01J8/02; B01J8/0285; C; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0417; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/152; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00115; B01J2208/00132; B01J2208/00477; B01J2208/00495; B01J2208/00539; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
APPARATUS FOR CONDUCTING EXOTHERMIC VAPOR PHASE CATALYTIC REACTIONS AT HIGH PRESSURES COMPRISING IN COMBINATION A HEAVY PRESSURE RESISTANT CONVERTER SHELL, A CATALYST BASKET WITHIN SAID SHELL AND A BED OF CATALYST IN SAID BASKET HAVING A NUMBER OF SPACED BAYONET COOLING ELEMENTS EMBEDDED THEREIN AND EXTENDING PARALLEL TO THE FLOW FO REACTION GASES THERETHROUGH, SAID COOLING ELEMENTS COMPRISING OUTER TUBES IN HEAT EXCHANGING RELATION WITH THE CATALYST, CORE TUBES WITHIN BUT SPACED FROM SAID OUTER TUBES AND TERMAL INSULATION MEANS BETWEEN SAID CORE TUBES SAID OUTER TUBES, AND MEANS FOR PASSING INCOMING REACTION GASES THROUGH SAID CORE TUBES, THEN THROUGH SAID OUTER TUBES IN THE OPPOSITE DIRECTION, THEN THROUGH AND IN CONTACT WITH THE CATALYST IN THE SAME AND THEN THROUGH SAID HEAT EXCHANGER IN INDIRECT HEAT EXCHANGE WITH SAID INCOMING REACTION GATES.
Claim 2
Dependent Claim
133 words
APPARATUS FOR CONDUCTING EXOTHERMIC VAPOR PHASE CATALYTIC REACTIONS AT HIGH PRESSURES COMPRISING IN COMBINATION A HEAVY PRESSURE RESISTANT CONVERTER SHELL, A CATALYST BASKET WITHIN SAID SHELL AND A BED OF CATALYST IN SAID BASKET HAVING A NUMBER OF SPACED BAYONET COOLING ELEMENTS EMBEDDED THEREIN AND EXTENDING PARALLEL TO THE FLOW FO REACTION GASES THERETHROUGH, SAID COOLING ELEMENTS COMPRISING OUTER TUBES IN HEAT EXCHANGING RELATION WITH THE CATALYST, CORE TUBES WITHIN BUT SPACED FROM SAID OUTER TUBES AND TERMAL INSULATION MEANS BETWEEN SAID CORE TUBES SAID OUTER TUBES, AND MEANS FOR PASSING INCOMING REACTION GASES THROUGH SAID CORE TUBES, THEN THROUGH SAID OUTER TUBES IN THE OPPOSITE DIRECTION, THEN THROUGH AND IN CONTACT WITH THE CATALYST IN THE SAME AND THEN THROUGH SAID HEAT EXCHANGER IN INDIRECT HEAT EXCHANGE WITH SAID INCOMING REACTION GATES.
References Cited (Backward Citations)
US1707417A
Cited
US1909378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |