US3065043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air purification
Assignee: Midland Ross Corp
•
Filing: 1958-05-23
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Granted: 1962-11-20
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Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
- 👤 Gilbert A Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:58
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1417; F24F8/00; F24F8/20; F24F8/24; F24F2003/144; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD FOR PURIFYING AIR WHICH CONSISTS IN CIRCULATING A STREAM OF A HYGROSCOPIC SALT SOLUTION SELECTED FROM THE GROUP CONSISTING OF LITHIUM CHLORIDE, LITHIUM BROMIDE AND ZINC CHLORIDE SOLUTIONS FROM A BODY THEREOF INTO CONTACT WITH A SURFACE AND BACK TO THE BODY OF THE SOLUTION, THE SURFACE BEING WETTED BY THE SOLUTION, CIRCULATING A STRAM OF AIR FROM A SOURCE INTO IMPINGING RELATIONSHIP WITH THE WETTED SURFACE FOR PURIFICATION, AND DELIVERING THE RESULTING PURIFIED AIR INTO AN ENCLOSED SPACE, WHEREBY VARIATIONS IN MOISTURE CONTENT IN THE AIR FROM THE SOURCE CAUSE VARIATIONS IN CONCENTRATION OF THE SALT SOLUTION.
Claim 2
Independent Claim
100 words
A METHOD FOR PURIFYING AIR WHICH CONSISTS IN CIRCULATING A STREAM OF A HYGROSCOPIC SALT SOLUTION SELECTED FROM THE GROUP CONSISTING OF LITHIUM CHLORIDE, LITHIUM BROMIDE AND ZINC CHLORIDE SOLUTIONS FROM A BODY THEREOF INTO CONTACT WITH A SURFACE AND BACK TO THE BODY OF THE SOLUTION, THE SURFACE BEING WETTED BY THE SOLUTION, CIRCULATING A STRAM OF AIR FROM A SOURCE INTO IMPINGING RELATIONSHIP WITH THE WETTED SURFACE FOR PURIFICATION, AND DELIVERING THE RESULTING PURIFIED AIR INTO AN ENCLOSED SPACE, WHEREBY VARIATIONS IN MOISTURE CONTENT IN THE AIR FROM THE SOURCE CAUSE VARIATIONS IN CONCENTRATION OF THE SALT SOLUTION.
References Cited (Backward Citations)
US1173497A
Cited
US1992177A
Cited
US2129275A
Cited
US2205831A
Cited
US2171400A
Cited
US2230088A
Cited
US2683074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |