US3004901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for fractional distillation
Assignee: Leybold Hochvakuum Anlagen GmbH
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Filing: 1959-10-14
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Granted: 1961-10-17
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Expires: 1979-10-14
Abstract
No abstract record available.
Inventors
- 👤 Nerge Wilhelm
- 👤 Keunecke Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:59
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/22; B01D1/222; B01D3/00; B01D3/10; B01D3/14; B01D3/30; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN AN APPARATUS FOR FRACTIONAL DISILLATION UNDER VACUUM, THE COMBINATION WHICH COMPRISES: CYLINDRICAL VAPORATING MEANS FOR EVAPORATING THE MATERIAL TO BE DISTILLED, CONDENSER MEANS LOCATED ALONG THE AXIS OF AND SURROUNDED BY SAID EVAPORATING MEANS, A ROTATABLE PERFORATED SPIRAL INSERT MEMBER POSITIONED BETWEEN SAID EVAPORATING MEANS AND SAID CONDENSER MEANS AND ALLOWING THE MOVEMENT OF VAPORS BETWEEN SAID EVAPORATING MEANS AND SAID CONDENSER MEANS TO TAKE PLACE IN A DIRECTION SUBSTANTIALLY VERTICAL TO SAID AXIS, AND COLLECTOR MEANS POSITIONED BETWEEN SAID SPIRAL INSERT MEMBER AND SAID EVAPORATING MEANS FOR COLLECTING LIQUID CONDENSED ON THE SURFACE OF SAID SPIRAL INSERT MEMBER AND FLOWING DOWN SAID SURFACE UNDER THE INFLUENCE OF GRAVITY, THEREBY PREVENTING SUCH LIQUID FROM BEING CENTRIFUGED ONTO SAID EVAPORATING MEANS.
Claim 2
Dependent Claim
121 words
IN AN APPARATUS FOR FRACTIONAL DISILLATION UNDER VACUUM, THE COMBINATION WHICH COMPRISES: CYLINDRICAL VAPORATING MEANS FOR EVAPORATING THE MATERIAL TO BE DISTILLED, CONDENSER MEANS LOCATED ALONG THE AXIS OF AND SURROUNDED BY SAID EVAPORATING MEANS, A ROTATABLE PERFORATED SPIRAL INSERT MEMBER POSITIONED BETWEEN SAID EVAPORATING MEANS AND SAID CONDENSER MEANS AND ALLOWING THE MOVEMENT OF VAPORS BETWEEN SAID EVAPORATING MEANS AND SAID CONDENSER MEANS TO TAKE PLACE IN A DIRECTION SUBSTANTIALLY VERTICAL TO SAID AXIS, AND COLLECTOR MEANS POSITIONED BETWEEN SAID SPIRAL INSERT MEMBER AND SAID EVAPORATING MEANS FOR COLLECTING LIQUID CONDENSED ON THE SURFACE OF SAID SPIRAL INSERT MEMBER AND FLOWING DOWN SAID SURFACE UNDER THE INFLUENCE OF GRAVITY, THEREBY PREVENTING SUCH LIQUID FROM BEING CENTRIFUGED ONTO SAID EVAPORATING MEANS.
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) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |