US2696306A
Expired / Lapsed
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Assignee: Phillips Petroleum Co
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Filing: 1949-12-27
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Granted: 1954-12-07
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Expires: 1969-12-27
Abstract
No abstract record available.
Inventors
- 👤 Paul L Gomory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:28
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A PROCESS FOR MANUFACTUREING CALCIUM HYPOCHLORITE WHEREIN AN AQUEOUS SUSPENSION OF CALCIUM HYDROXIDE IS CHLORINATED TO PRODUCE A SLURRY OF CALCIUM HYPOCHLORITE CRYSTALS IN A MOTHER LIQUOR, THE IMPROVED METHOD OF FILTERING SAID CRYSTALS FROM SAID LIQUOR WHICH COMPRISES ADMIXING THE SAID SLURRY WITH AN ORGANIC LIQUID SELECTED FROM THE GROUP CONSISTING OF BENZEN DITOLYL, CYCLOHEXANE, CYCLOOCTANE, DICYCLOHEXYL, DIBRROMETHANE, DICHLORONAPHTHALENE AND DIHYDROXY BUTANE, COOLING THE RESULTING ADMIXTURE TO A TEMPERATURE BELOW THE FREEZING POINT OF SAID SAID ORGANIC LIQUID BUT ABOVE THE FEEZING POINT OF SAID SLURRY CAUSING SAID ORGANIC LIQUID TO SOLIDIFY INTO DISCRETE PARTICLES CAPABLE OF ACTING AS A FILTER AID IN SAID SLURRY, FILTERING SAID LIQUOR FROM SAID CRYSTALS AND SAID FILTER AID WARMING THE RESULTING FILTER CAKE TO A TEMPERATURE ABOVE THE FREEZING POINT OF SAID ORGANIC LIQUID AND THEN SEPARATING SAID CRYSTALS FROM SAID ORGANIC LIQUID.
Claim 2
Dependent Claim
142 words
IN A PROCESS FOR MANUFACTUREING CALCIUM HYPOCHLORITE WHEREIN AN AQUEOUS SUSPENSION OF CALCIUM HYDROXIDE IS CHLORINATED TO PRODUCE A SLURRY OF CALCIUM HYPOCHLORITE CRYSTALS IN A MOTHER LIQUOR, THE IMPROVED METHOD OF FILTERING SAID CRYSTALS FROM SAID LIQUOR WHICH COMPRISES ADMIXING THE SAID SLURRY WITH AN ORGANIC LIQUID SELECTED FROM THE GROUP CONSISTING OF BENZEN DITOLYL, CYCLOHEXANE, CYCLOOCTANE, DICYCLOHEXYL, DIBRROMETHANE, DICHLORONAPHTHALENE AND DIHYDROXY BUTANE, COOLING THE RESULTING ADMIXTURE TO A TEMPERATURE BELOW THE FREEZING POINT OF SAID SAID ORGANIC LIQUID BUT ABOVE THE FEEZING POINT OF SAID SLURRY CAUSING SAID ORGANIC LIQUID TO SOLIDIFY INTO DISCRETE PARTICLES CAPABLE OF ACTING AS A FILTER AID IN SAID SLURRY, FILTERING SAID LIQUOR FROM SAID CRYSTALS AND SAID FILTER AID WARMING THE RESULTING FILTER CAKE TO A TEMPERATURE ABOVE THE FREEZING POINT OF SAID ORGANIC LIQUID AND THEN SEPARATING SAID CRYSTALS FROM SAID ORGANIC LIQUID.
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) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |