Patent US2824620A successfully refreshed from Google Patents.
US2824620A
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Purification of hydrogen utilizing hydrogen-permeable membranes
Assignee: Universal Oil Products Co
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Filing: 1955-09-12
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Granted: 1958-02-25
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Expires: 1975-09-12
Abstract
No abstract record available.
Inventors
- 👤 Rosset Armand J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; B01D53/228; B01D63/00; B01D63/08; B01D63/082; C; C01; C01B; C01B3/00; C01B3/50; C01B3/501; C01B3/503; C01B3/505; B01D2313/00; B01D2313/42; B01D2319/00; B01D2319/04; C01B2203/00; C01B2203/04; C01B2203/0405; C01B2203/0465; C01B2203/048; C01B2203/0485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR INCREASING THE CONCENTRATION OF HYDROGEN IN A MIXTURE OF GASES WHICH COMPRISES PASSING SAID MIXTURE AT AN ELEVATED PRESSURE AND TEMPERATURE THROUGH A DIFFUSION ZONE SEPARATED INTO AN UPSTREAM PORTIONA AND A DOWNSTREAM PORTION BY A CONTINOUS, HYDROGEN-PERMEABLE MEMBRANE COMPRISING A METAL OF GROUP VIII OF THE PERIODIC TABLE, SAID MEMBRANE BEING SUPPORTED ON THE DOWNSTREAM SIDE BY A POROUS MATRIX OF COMPRESSED SINTERED METAL PARTICLES AND HAVING SUFFICIENT STRUCTURAL RIGIDITY TO MAINTAIN THE CONTINUITY OF SAID MEMBRANE AGAINST THE UPSTREAM PRESSURE, COLLECTING HYDROGEN ON THE DOWSTREAM SIDE OF SAID MEMBRANE AND THE NON-HYDROGEN COMPONENTS OF SAID MIXTURE ON THE UPSTREAM SIDE OF SAID MATRIX.
Claim 2
Dependent Claim
108 words
A PROCESS FOR INCREASING THE CONCENTRATION OF HYDROGEN IN A MIXTURE OF GASES WHICH COMPRISES PASSING SAID MIXTURE AT AN ELEVATED PRESSURE AND TEMPERATURE THROUGH A DIFFUSION ZONE SEPARATED INTO AN UPSTREAM PORTIONA AND A DOWNSTREAM PORTION BY A CONTINOUS, HYDROGEN-PERMEABLE MEMBRANE COMPRISING A METAL OF GROUP VIII OF THE PERIODIC TABLE, SAID MEMBRANE BEING SUPPORTED ON THE DOWNSTREAM SIDE BY A POROUS MATRIX OF COMPRESSED SINTERED METAL PARTICLES AND HAVING SUFFICIENT STRUCTURAL RIGIDITY TO MAINTAIN THE CONTINUITY OF SAID MEMBRANE AGAINST THE UPSTREAM PRESSURE, COLLECTING HYDROGEN ON THE DOWSTREAM SIDE OF SAID MEMBRANE AND THE NON-HYDROGEN COMPONENTS OF SAID MIXTURE ON THE UPSTREAM SIDE OF SAID MATRIX.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |