Patent US4589891A successfully refreshed from Google Patents.
US4589891A
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US
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Hydrogen permeatin membrane, process for its manufacture and use
Assignee: Forschungszentrum Jülich
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Filing: 1984-09-10
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Granted: 1986-05-20
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Expires: 2004-09-10
Abstract
Abstract A process of manufacturing a hydrogen permeable membrane in which a hydrogen permeable metal is deposited galvanically on a fine mesh metal fabric.
Inventors
- 👤 Nicolas Iniotakis
- 👤 Claus-Benedict von der Decken
- 👤 Werner Frohling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:23
CPC Classifications
B; B01; B01D; B01D67/00; B01D67/0039; B01D67/0069; B01D53/00; B01D53/22; B01D59/00; B01D59/10; B01D59/12; B01D59/14; B01D63/00; B01D63/08; B01D63/087; B01D69/00; B01D69/10; B01D71/00; B01D71/02; C; C01; C01B; C01B3/00; C01B3/50; C01B3/501; C01B3/503; C01B4/00; C25; C25D; C25D7/00; G; G21; G21F; G21F9/00; G21F9/02; B01D2313/00; B01D2313/40; B01D2325/00; B01D2325/04; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12444
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
84 words
A process for the manufacture of a hydrogen permeable membrane in the form of a thin hydrogen-permeable metal coating of a material with a high hydrogen-permeation coefficient on a fabric of fine metal mesh, said process comprising galvanic deposition of a hydrogen-permeable metal having a high hydrogen-permeation coefficient on to a fine mesh metal fabric, said metal coating having a thickness range of about 1 to 20 microns, said fine mesh metal fabric having a mesh width of about 40 microns at the most.
Claim 2
Dependent Claim
84 words
A process for the manufacture of a hydrogen permeable membrane in the form of a thin hydrogen-permeable metal coating of a material with a high hydrogen-permeation coefficient on a fabric of fine metal mesh, said process comprising galvanic deposition of a hydrogen-permeable metal having a high hydrogen-permeation coefficient on to a fine mesh metal fabric, said metal coating having a thickness range of about 1 to 20 microns, said fine mesh metal fabric having a mesh width of about 40 microns at the most.
Claim 3
Dependent Claim
17 words
A process according to claim 1 in which at least two metals are deposited on the fabric.
Claim 4
Dependent Claim
23 words
A process according to claim 2 in which a metal coating is laid down on the metal fabric prior to said galvanic deposition.
Claim 5
Dependent Claim
29 words
A process according to claim 3 in which a metal coating is laid down from a colloidal solution and is later removed at least in part after galvanic deposition.
Claim 6
Dependent Claim
14 words
A process according to claim 2 in which a galvanically-coated metal fabric is tempered.
Claim 7
Dependent Claim
29 words
A process according to claim 1 in which the hydrogen-permeable metal is galvanically deposited in a thickness which corresponds to at least approximately half the width of the mesh.
Claim 8
Dependent Claim
18 words
A process according to claim 6 in which a second metal fabric is applied on the galvanic coating.
Claim 9
Dependent Claim
28 words
A process for the manufacture of a hydrogen permeable membrane as in claim 1, wherein said metal coating has a thickness range of about 2 to 10 microns.
Claim 10
Dependent Claim
26 words
A process for the manufacture of a hydrogen permeable membrane as in claim 1, wherein said metal coating has a thickness of up to 15 microns.
Claim 11
Dependent Claim
52 words
A hydrogen permeable membrane comprising a metal fabric with a hydrogen-permeable metal coating galvanically deposited on and adhering to said metal fabric, wherein said metal fabric has a mesh width of about 40 microns at the most, and wherein said metal coating has a thickness range of about 1 to 20 microns.
Claim 12
Dependent Claim
52 words
A hydrogen permeable membrane comprising a metal fabric with a hydrogen-permeable metal coating galvanically deposited on and adhering to said metal fabric, wherein said metal fabric has a mesh width of about 40 microns at the most, and wherein said metal coating has a thickness range of about 1 to 20 microns.
Claim 13
Dependent Claim
21 words
A hydrogen permeation membrane according to claim 10 in which a second metal fabric is positioned over the hydrogen-permeable metal coating.
Claim 14
Dependent Claim
16 words
A permeation membrane according to claim 11, said membrane being supported by an additional support structure.
Claim 15
Dependent Claim
18 words
A permeation membrane according to claim 12, wherein said membrane inclusive of and additional support structure is corrugated.
Claim 16
Dependent Claim
17 words
A permeation membrane according to claim 11, wherein said membrane inclusive of said metal fabrics is corrugated.
Claim 17
Dependent Claim
22 words
A hydrogen permeable membrane according to claim 10 wherein said metal coating has a thickness range of about 2 to 10 microns.
Claim 18
Dependent Claim
20 words
A hydrogen permeable membrane according to claim 10 wherein said metal coating has a thickness of up to 15 microns.
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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) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |