US3230865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for removing liquids from solids
Assignee: Ruhrchemie AG
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Filing: 1963-06-14
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Granted: 1966-01-25
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Expires: 1983-06-14
Abstract
No abstract record available.
Inventors
- 👤 Hibbel Josef
- 👤 Schaub Franz
- 👤 Franz Dietmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:55
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/23; B01D29/25; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/76; B01D29/80; B01D29/84; B01D29/843; B01D29/88; B01D29/94; B01D35/00; B01D35/16; B30; B30B; B30B9/00; B30B9/02; B30B9/12; B30B9/121; B30B9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
THE PROCESS OF SEPARATING LIQUID FROM LIQUID-SOLID ADMIXTURE WHICH COMPRISES COMPRESSING ADMIXTURE AGAINST A FILTER SCREEN ELEMENT AS A CAKE OF THE ADMIXTURE AND TO EXPRESS LIQUID THROUGH THE SCREEN AND SIMULTANEOUSLY ADVANCING ADMIXTURE AS A CAKE IN A DIRECTION PARALLEL TO THE SCREEN, WHEREBY THE ADMIXTURE BECOMES PROGRESSIVELY DEPLETED IN LIQUID COMPONENT AS IT IS ADVANCED IN SAID DIRECTION PARALLEL TO THE SCREEN, THEREAFTER FURTHER ADVANCING THE ADMIXTURE AS A CAKE IN SAID DIRECTION PARALLEL TO THE SCREEN AND SIMULTANEOUSLY FORCING GAS THROUGH THE CAKE TOWARDS THE SCREEN TO DISPLACE LIQUID FROM THE CAKE AND THEREBY REDUCE LIQUID CONTENT OF THE CAKE TO BELOW THE LIQUID CONTENT CORRESPONDING TO EXPRESSING LIQUID THEREFROM AS AFORESAID, AND FOLLOWING FORCING GAS THROUGH THE CAKE AS AFORESAID REMOVING THE CAKE FROM THE SCREEN AND HEATING THE CAKE TO EXPEL LIQUID THEREFROM.
Claim 2
Dependent Claim
138 words
THE PROCESS OF SEPARATING LIQUID FROM LIQUID-SOLID ADMIXTURE WHICH COMPRISES COMPRESSING ADMIXTURE AGAINST A FILTER SCREEN ELEMENT AS A CAKE OF THE ADMIXTURE AND TO EXPRESS LIQUID THROUGH THE SCREEN AND SIMULTANEOUSLY ADVANCING ADMIXTURE AS A CAKE IN A DIRECTION PARALLEL TO THE SCREEN, WHEREBY THE ADMIXTURE BECOMES PROGRESSIVELY DEPLETED IN LIQUID COMPONENT AS IT IS ADVANCED IN SAID DIRECTION PARALLEL TO THE SCREEN, THEREAFTER FURTHER ADVANCING THE ADMIXTURE AS A CAKE IN SAID DIRECTION PARALLEL TO THE SCREEN AND SIMULTANEOUSLY FORCING GAS THROUGH THE CAKE TOWARDS THE SCREEN TO DISPLACE LIQUID FROM THE CAKE AND THEREBY REDUCE LIQUID CONTENT OF THE CAKE TO BELOW THE LIQUID CONTENT CORRESPONDING TO EXPRESSING LIQUID THEREFROM AS AFORESAID, AND FOLLOWING FORCING GAS THROUGH THE CAKE AS AFORESAID REMOVING THE CAKE FROM THE SCREEN AND HEATING THE CAKE TO EXPEL LIQUID THEREFROM.
References Cited (Backward Citations)
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US808193A
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US985863A
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US1096199A
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US2216658A
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |