US3630690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen-pumping apparatus of laminated construction
Assignee: General Electric Co
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Filing: 1969-04-21
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Granted: 1971-12-28
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Expires: 1989-04-21
Abstract
Abstract An exhaust pump of laminar construction employs a palladium substrate and an intermediate layer of titanium between the substrate and a hydrocarbon cracker catalyst layer. The catalyst layer is exposed to a region being evacuated of gas including hydrogen, while the palladium substrate is exposed to the atmosphere. The combination of materials, operated at an elevated temperature, results in efficient hydrocarbon cracking, hydrogen pumping, and sorption of other gases.
Inventors
- 👤 Patrick P Coppola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:51
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; B; B01; B01D; B01D53/00; B01D53/02; C01B3/50; C01B2203/00; C01B2203/04; C01B2203/0465; C01B2203/048; C01B2203/049; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
36 words
The apparatus of claim 1 wherein said laminated wall is of cup-shaped configuration protruding into the region of lower hydrogen pressure, and said heating means are situated substantially coaxially with the region bounded by said wall.
Claim 2
Dependent Claim
26 words
The apparatus of claim 1 wherein said laminated wall is of disk-shaped configuration and said heating means are spaced in close proximity to said palladium layer.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 wherein said porous gettering material comprises one of the group consisting of titanium, zirconium, and alloys thereof.
Claim 4
Dependent Claim
29 words
The apparatus of claim 4 wherein said porous hydrocarbon-cracking material comprises a metallized-ceramic material of the group consisting of palladium-alumina, palladium-silica, platinum-alumina, platinum-silica, iridium-alumina, iridium-silica, calcium silicates, and thoria.
Claim 5
Dependent Claim
22 words
The apparatus of claim 2 wherein said porous gettering material comprises one of the group consisting of titanium, zirconium, and alloys thereof.
Claim 6
Dependent Claim
29 words
The apparatus of claim 6 wherein said porous hydrocarbon-cracking material comprises a metallized-ceramic material of the group consisting of palladium-alumina, palladium-silica, platinum-alumina, platinum-silica, iridium-alumina, iridium-silica, calcium silicates, and thoria.
Claim 7
Dependent Claim
22 words
The apparatus of claim 3 wherein said porous gettering material comprises one of the group consisting of titanium, zirconium, and alloys thereof.
Claim 8
Dependent Claim
29 words
The apparatus of claim 8 wherein said porous hydrocarbon-cracking material comprises a metallized-ceramic material of the group consisting of palladium-alumina, palladium-silica, platinum-alumina, platinum-silica, iridium-alumina, iridium-silica, calcium silicates, and thoria.
Claim 9
Dependent Claim
15 words
The apparatus of claim 1 wherein said substrate layer consists essentially of silver and palladium.
Claim 10
Dependent Claim
36 words
The apparatus of claim 10 wherein said laminated wall is of cup-shaped configuration protruding into the region of lower hydrogen pressure, and said heating means are situated substantially coaxially with the region bounded by said wall.
Claim 11
Dependent Claim
26 words
The apparatus of claim 10 wherein said laminated wall is of disk-shaped configuration and said heating means are spaced in close proximity to said palladium layer.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |