US3251173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the purification of hydrogen
Assignee: WC Heraus GmbH and Co KG
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Filing: 1963-11-26
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Granted: 1966-05-17
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Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Ehlers Herbert
- 👤 Muller Paul
- 👤 Rosenstock Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:58
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/501; C01B2203/00; C01B2203/04; C01B2203/0405
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A DEVICE FOR THE PURIFICATION OF HYDROGEN COMPRISING AN OUTER TANK, WALL ACROSS THE INSIDE OF THE OUTER TANK DIVIDING IT INTO A FIRST CHAMBER AND A SECOND CHAMBER, SAID OUTER TANK HAVING AN INLET FOR IMPURE GAS INTO THE FIRST CHAMBER AND AN OUTLET FOR HYDROGEN FROM THE SECOND CHAMBER, AN INNER TANK IN THE SECOND CHAMBER OF THE OUTER TANK, A HEATING ELEMENT THROUGH SAID WALL AND EXTENDING INTO BOTH THE FIRST AND SECOND CHAMBERS, A PLURALITY OF OPEN ENDED TUBES OF HYDROGEN PERMEABLE METAL ARRANGED CONCENTRICALLY AROUND SAID HEATING ELEMENT IN THE SECOND CHAMBER, SAID TUBES HAVING ONE END SECURED TO SAID WALL AND OPENING INTO THE FIRST CHAMBER AND THE OTHER END SECURED TO AND OPENING INTO THE INNER TANK, AND AN OUTLET CONDUIT FROM THE INNER TANK THROUGH A PORTION OF THE SECOND CHAMBER TO THE OUTSIDE OF THE OUTER TANK, THE OUTLET CONDUIT BEING FLEXIBLE, LONGITUDINALLY EXTENSIBLE AND COPRESSIBLE.
Claim 2
Independent Claim
155 words
A DEVICE FOR THE PURIFICATION OF HYDROGEN COMPRISING AN OUTER TANK, WALL ACROSS THE INSIDE OF THE OUTER TANK DIVIDING IT INTO A FIRST CHAMBER AND A SECOND CHAMBER, SAID OUTER TANK HAVING AN INLET FOR IMPURE GAS INTO THE FIRST CHAMBER AND AN OUTLET FOR HYDROGEN FROM THE SECOND CHAMBER, AN INNER TANK IN THE SECOND CHAMBER OF THE OUTER TANK, A HEATING ELEMENT THROUGH SAID WALL AND EXTENDING INTO BOTH THE FIRST AND SECOND CHAMBERS, A PLURALITY OF OPEN ENDED TUBES OF HYDROGEN PERMEABLE METAL ARRANGED CONCENTRICALLY AROUND SAID HEATING ELEMENT IN THE SECOND CHAMBER, SAID TUBES HAVING ONE END SECURED TO SAID WALL AND OPENING INTO THE FIRST CHAMBER AND THE OTHER END SECURED TO AND OPENING INTO THE INNER TANK, AND AN OUTLET CONDUIT FROM THE INNER TANK THROUGH A PORTION OF THE SECOND CHAMBER TO THE OUTSIDE OF THE OUTER TANK, THE OUTLET CONDUIT BEING FLEXIBLE, LONGITUDINALLY EXTENSIBLE AND COPRESSIBLE.
References Cited (Backward Citations)
FR1178480A
Cited
US3104960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |