US3593495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A method for gas purification from a system retort
Assignee: Vacuum Atmospheres Corp
•
Filing: 1969-06-19
•
Granted: 1971-07-20
•
Expires: 1989-06-19
Abstract
Abstract The disclosure concerns the operation of a gas purification retort unit wherein removal of a gas flow tube and getter carrier from a heated container are facilitated, and the mode of operation of the tube and baffle structure carried thereby are such that heat transfer from hot gas to a sealed interconnection between the container and a removable head is blocked. Operation of the retort unit in a system for treating gas containing oxygen, hydrogen and water is also disclosed.
Inventors
- 👤 John M Ellison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:56
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
22 words
The method of claim 1 including the step of intercepting heat radiated from the getter toward said interconnection via the inlet gas.
Claim 2
Dependent Claim
63 words
The method of claim 1 including flowing said gas containing impurities including hydrogen to said getter of the type and at a reduced temperature characterized in that hydrogen is removed by the getter from the gas flow, and thereafter discontinuing said gas flow to the getter and also subjecting the getter to elevated temperature and vacuum purging to remove hydrogen from the getter.
Claim 3
Dependent Claim
30 words
The method of claim 1 including periodically removing said head, withdrawing the tube from the container, replacing the gettering agent on the tube, and reinserting the tube into the container.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |