US3083545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for purifying gases
Assignee: Sulzer AG
•
Filing: 1958-09-24
•
Granted: 1963-04-02
•
Expires: 1978-09-24
Abstract
No abstract record available.
Inventors
- 👤 Ugo C Grossmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:00
CPC Classifications
B; B01; B01D; B01D5/00; B01D5/0078; B01D5/0087; B01D5/0033; B01D5/0036; B01D53/00; B01D53/002; B01D53/005; F; F25; F25J; F25J3/00; F25J3/08; F25J2215/00; F25J2215/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A METHOD OF PURIFYING A GASEOUS FLUID AND SEPARATING THEREFROM THE HIGHER BOILING, SOLIDIFIABLE IMPURITIES PRESENT THEREIN, WHICH COMPRISES CONDUCTING THE GASEOUS FLUID THROUGH THE PRIMARY CONDUIT OF THE HEAT EXCHANGE ZONES OF A HEAT EXCHANGER IN WHICH BOTH THE PRIMARY AND SECONDARY CONDUITS ARE IN DIRECT HEAT EXCHANGE RELATIONSHIP WITH EACH OTHER THROUGH A COMMON HEAT EXCHANGE WALL, CONDENSING AT LEAST A PORTION OF THE SAID GASEOUS FLUID IN SAID PRIMARY CONDUIT TO FORM A DOWNWARDLY FLOWING LIQUID FILM OF CONDENSATE ON THE HEAT EXCHANGE WALL OF SAID PRIMARY CONDUIT AND TO CONVERT AT LEAST A PART OF THE HIGHER BOILING, SOLIFIDIFIABLE IMPURITIES PRESENT IN THE GASEOUS FLUID BEING CONDENSED TO SOLID FORM WHEREBY SAID DOWNWARDLY FLOWING LIQUID FILM WASHES SAID SOLIDIFIED IMPURITIES TO THE BASE OF THE PRIMARY CONDUIT, THROTTLING THE CONDENSED PORTION OF THE FLUID TOGETHER WITH AT LEAST A PORTION OF THE SOLIDIFIED IMPURITIES CONTAINED THEREIN AND CONDUCTING THIS MIXTURE INTO THE SECONDARY CONDUIT
Claim 2
Independent Claim
158 words
A METHOD OF PURIFYING A GASEOUS FLUID AND SEPARATING THEREFROM THE HIGHER BOILING, SOLIDIFIABLE IMPURITIES PRESENT THEREIN, WHICH COMPRISES CONDUCTING THE GASEOUS FLUID THROUGH THE PRIMARY CONDUIT OF THE HEAT EXCHANGE ZONES OF A HEAT EXCHANGER IN WHICH BOTH THE PRIMARY AND SECONDARY CONDUITS ARE IN DIRECT HEAT EXCHANGE RELATIONSHIP WITH EACH OTHER THROUGH A COMMON HEAT EXCHANGE WALL, CONDENSING AT LEAST A PORTION OF THE SAID GASEOUS FLUID IN SAID PRIMARY CONDUIT TO FORM A DOWNWARDLY FLOWING LIQUID FILM OF CONDENSATE ON THE HEAT EXCHANGE WALL OF SAID PRIMARY CONDUIT AND TO CONVERT AT LEAST A PART OF THE HIGHER BOILING, SOLIFIDIFIABLE IMPURITIES PRESENT IN THE GASEOUS FLUID BEING CONDENSED TO SOLID FORM WHEREBY SAID DOWNWARDLY FLOWING LIQUID FILM WASHES SAID SOLIDIFIED IMPURITIES TO THE BASE OF THE PRIMARY CONDUIT, THROTTLING THE CONDENSED PORTION OF THE FLUID TOGETHER WITH AT LEAST A PORTION OF THE SOLIDIFIED IMPURITIES CONTAINED THEREIN AND CONDUCTING THIS MIXTURE INTO THE SECONDARY CONDUIT
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |