US3584441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas purification apparatus
Assignee: Individual
•
Filing: 1968-01-11
•
Granted: 1971-06-15
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Expires: 1988-01-11
Abstract
Abstract Gas purification apparatus including reactant tanks into opposite ends of which mainstream and purge gases are introduced in a reciprocal operation are equipped with a purge gas heating arrangement for increasing the efficiency of the purge operation and a depressurizing arrangement for reducing the breakdown of reactant granules in these tanks. A simple control circuit in which a timing portion is removable for replacement with a leak test control panel is also described.
Inventors
- 👤 Walter E Strimling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:29
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
37 words
An arrangement in accordance with claim 1, also including a timing circuit for supplying power to said control circuit in accordance with a timing sequence, said timing circuit being removably connected to said valves and heating means.
Claim 2
Dependent Claim
34 words
An arrangement in accordance with claim 2, in combination with a test circuit for supplying power to open selected ones of said valves simultaneously, said test circuit being removably connected to said control circuit.
Claim 3
Dependent Claim
88 words
First and second gas purification arrangements in accordance with claim 1 connected between said inlet and outlet connections, said first and second arrangements including first and second reactant tanks and associated first and second inlet and outlet valve pairs respectively, said control circuit including means enabled by the closing of the valves of one of said valve pairs for opening the valves of the other pair and means enabled by the closure of the valves of said one of said valve pairs for opening the associated third valve.
Claim 4
Dependent Claim
59 words
First and second gas purification arrangements in accordance with claim 1 wherein said control circuit includes means responsive to tHe closure of the inlet and outlet valves associated with the reactant tank of said first gas purification arrangement for enabling the opening of the inlet and outlet valves associated with the reactant tank of said second gas purification arrangement.
Claim 5
Dependent Claim
36 words
First and second gas purification arrangements in accordance with claim 1 also including a timing circuit for supplying power to said control circuit in accordance with a timing sequence, said timing circuit being removably connected thereto.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |