Patent US3895919A successfully refreshed from Google Patents.
US3895919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the production of a homogenous gas mixture
Assignee: ThyssenKrupp Industrial Solutions AG
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Filing: 1973-11-29
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Granted: 1975-07-22
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Expires: 1993-11-29
Abstract
Abstract A device for the production of a homogenous gas mixture from two gas streams of different parameters in which a free equalizing space downstream of a superimposed catalyst layer has a mixing assembly provided with upper and lower plates carrying mixing tubes equipped with restricted orifices. Quench gas is introduced into a closed duct disposed about the mixing tubes and apertures in the duct at locations below the restricted orifices permit passage of the quench gas to the mixing tubes. The quench gas is introduced into the tubes through apertures located above the restricted tube orifices. The gas mixture passes from the mixing tubes to a distribution space and thence to a downstream catalyst layer.
Inventors
- 👤 Friedrich Forster
- 👤 Erich Barth
- 👤 Heinz-Jochen Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:14
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0492; B01F; B01F23/00; B01F23/10; B01F25/00; B01F25/30; B01F25/31; B01F25/313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
APPARTUS FOR PRODUCING A GAS MIXTURE, COMPRISING MEANS PROVIDING A FREE EQUALIZING SPACE BENEATH A SUPERIMPOSED CATALYST LAYER, A MIXING CHAMBER IN SAID SPACE HAVING SPACED UPPER AND LOWER PLATES, A PLURALITY OF SPACED OPEN ENDED MIXING TUBES HAVING THEIR UPPER AND LOWER END PORTIONS SEALED IN SAID PLATES, WITHIN EACH TUBE A PARTITION BETWEEN THE UPPER AND LOWER ENDS THEREOF, SAID PARTITION HAVING A RESTRICTED ORIFICE, A QUENCH GAS PIPE LEADING TO SAID MIXING CHAMBER AND TERMINATING IN ADUCT MEANS POSITIONED BETWEEN SAID UPPER AND LOWER PLATES, SAID DUCT MEANS HAVING AN OUTER WALL AND AN INNER WALL, THE OUTER WALL OF SAID DUCT MEANS CONSTITUTING THE PERIPHERY OF SAID MIXING CHAMBER, AND THE INNER WALL OF SAID DUCT MEANS EXTENDING FROM THE UPPER TO THE LOWER PLATE OF SAID MIXING CHAMBER AND BEING DISPLACED INWARDLY OF SAID PERIPHERY, THE DUCT CONSEQUENTLY SURROUNDING SAID PLURALITY OF MIXING TUBES, AND PLURALITY OF OPENINGS IN THE INNER WALL OF SAID DUCT MEANS AT POINTS BELOW SAID PARTITIONS TO PERMIT PASSAGE OF QUENCH GAS ABOUT SAID MIXING TUBES, AND
Claim 2
Dependent Claim
177 words
APPARTUS FOR PRODUCING A GAS MIXTURE, COMPRISING MEANS PROVIDING A FREE EQUALIZING SPACE BENEATH A SUPERIMPOSED CATALYST LAYER, A MIXING CHAMBER IN SAID SPACE HAVING SPACED UPPER AND LOWER PLATES, A PLURALITY OF SPACED OPEN ENDED MIXING TUBES HAVING THEIR UPPER AND LOWER END PORTIONS SEALED IN SAID PLATES, WITHIN EACH TUBE A PARTITION BETWEEN THE UPPER AND LOWER ENDS THEREOF, SAID PARTITION HAVING A RESTRICTED ORIFICE, A QUENCH GAS PIPE LEADING TO SAID MIXING CHAMBER AND TERMINATING IN ADUCT MEANS POSITIONED BETWEEN SAID UPPER AND LOWER PLATES, SAID DUCT MEANS HAVING AN OUTER WALL AND AN INNER WALL, THE OUTER WALL OF SAID DUCT MEANS CONSTITUTING THE PERIPHERY OF SAID MIXING CHAMBER, AND THE INNER WALL OF SAID DUCT MEANS EXTENDING FROM THE UPPER TO THE LOWER PLATE OF SAID MIXING CHAMBER AND BEING DISPLACED INWARDLY OF SAID PERIPHERY, THE DUCT CONSEQUENTLY SURROUNDING SAID PLURALITY OF MIXING TUBES, AND PLURALITY OF OPENINGS IN THE INNER WALL OF SAID DUCT MEANS AT POINTS BELOW SAID PARTITIONS TO PERMIT PASSAGE OF QUENCH GAS ABOUT SAID MIXING TUBES, AND
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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |