US3734293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric adsorber
Assignee: Air Products and Chemicals Inc
•
Filing: 1970-03-04
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Granted: 1973-05-22
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Expires: 1990-03-04
Abstract
Abstract A gas purification system of the adsorption type is disclosed wherein peltier type thermoelectric modules are employed with the adsorbent material so as to cool the adsorbent and eliminate unfavorable temperature gradients in the adsorber during the adsorption cycle, as well as heat the adsorbent during the regeneration cycle.
Inventors
- 👤 E Biskis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:32
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0438; B01D53/0454; F; F25; F25B; F25B21/00; F25B21/02; F25B21/04; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2253/116; B01D2256/00; B01D2256/10; B01D2256/12; B01D2256/16; B01D2256/22; B01D2257/00; B01D2257/50; B01D2257/504; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40086; B01D2259/41; B01D2259/45; B01D2259/4566; B01D2259/4575; Y; Y02; Y02C; Y02C20/00; Y02C20/40
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
100 words
A purification system for removing impurities from a fluid stream comprising, in combination, firsT and second individual layers of adsorbent material, means for passing fluid streams in contact with said first and second individual layers of adsorbent material, at least one Peltier type thermoelectric element having a heat producing portion in heat exchange with said first layer of adsorbent material and a refrigeration producing portion in heat exchange relation with said second layer of adsorbent material, and electrical means for supplying current to said thermoelectric element for simultaneously heating and cooling said respective first and second layers of adsorbent material.
Claim 2
Dependent Claim
100 words
A purification system for removing impurities from a fluid stream comprising, in combination, firsT and second individual layers of adsorbent material, means for passing fluid streams in contact with said first and second individual layers of adsorbent material, at least one Peltier type thermoelectric element having a heat producing portion in heat exchange with said first layer of adsorbent material and a refrigeration producing portion in heat exchange relation with said second layer of adsorbent material, and electrical means for supplying current to said thermoelectric element for simultaneously heating and cooling said respective first and second layers of adsorbent material.
Claim 3
Dependent Claim
32 words
The purification system as claimed in claim 1 wherein said electrical means include reversing switch means for alternately heating and cooling each of said first and second layers of an adsorbent material.
References Cited (Backward Citations)
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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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |