US2844541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of dispersions
Assignee: Texaco Development Corp
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Filing: 1955-09-09
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Granted: 1958-07-22
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Expires: 1975-09-09
Abstract
No abstract record available.
Inventors
- 👤 Work Lincoln Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:12
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0086; B01J13/0004; B01J13/0026; Y; Y10; Y10S; Y10S516/00; Y10S516/924; Y10S516/928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A METHOD FOR PRODUCING A DISPERSION OF A FIRST NORMALLY SOLID SUBSTANCE IN A LIQUID DISPERSION MEDIUM WHICH IS A NON SOLVENT THEREFOR COMPRISING SIMULTANEOUSLY PASSING SAID FIRST SUBSTANCE AND SAID LIQUID TOGETHER IN A STREAM THROUGH A HEATING ZONE; HEATING SAID MIXTURE SUFFICIENTLY TO MELT SAID FIRST SUBSTANCE AND TO VAPORIZE AT LEAST A SUBSTANTIAL PART OF SAID LIQUID TO VAPOR, WHILE MAINTAINING SAID FIRST SUBSTANCE IN A LIQUID CONDITION; SUBJECTING SAID MIXTURE AND SAID VAPOR TO HIGH VELOCITY OF AT LEAST 25 FEET PER SECOND AND TURBULENT FLOW SUFFICIENT TO BREAK UP SAID FIRST SUBSTANCE TO LIQUID PARTICLES OF EXTREMELY FINE SIZE; AND COOLING SAID MIXTURE AND VAPOR, RESOLIDIFY THE PARTICLES OF SAID FIRST SUBSTANCE, TO CONDENSE SAID VAPOR AND FORM A DISPERSION OF EXTREMELY FINE PARTICLES OF SAID FIRST SUBSTANCE IN SAID LIQUID DISPERSING MEDIUM.
Claim 2
Independent Claim
138 words
A METHOD FOR PRODUCING A DISPERSION OF A FIRST NORMALLY SOLID SUBSTANCE IN A LIQUID DISPERSION MEDIUM WHICH IS A NON SOLVENT THEREFOR COMPRISING SIMULTANEOUSLY PASSING SAID FIRST SUBSTANCE AND SAID LIQUID TOGETHER IN A STREAM THROUGH A HEATING ZONE; HEATING SAID MIXTURE SUFFICIENTLY TO MELT SAID FIRST SUBSTANCE AND TO VAPORIZE AT LEAST A SUBSTANTIAL PART OF SAID LIQUID TO VAPOR, WHILE MAINTAINING SAID FIRST SUBSTANCE IN A LIQUID CONDITION; SUBJECTING SAID MIXTURE AND SAID VAPOR TO HIGH VELOCITY OF AT LEAST 25 FEET PER SECOND AND TURBULENT FLOW SUFFICIENT TO BREAK UP SAID FIRST SUBSTANCE TO LIQUID PARTICLES OF EXTREMELY FINE SIZE; AND COOLING SAID MIXTURE AND VAPOR, RESOLIDIFY THE PARTICLES OF SAID FIRST SUBSTANCE, TO CONDENSE SAID VAPOR AND FORM A DISPERSION OF EXTREMELY FINE PARTICLES OF SAID FIRST SUBSTANCE IN SAID LIQUID DISPERSING MEDIUM.
References Cited (Backward Citations)
US2021143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |