US2816841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for processing materials in sealed containers
Assignee: FMC Corp
•
Filing: 1953-10-28
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Granted: 1957-12-17
•
Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Kaap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:16
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/30; A23B2/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
THE METHOD OF STERILIZING MATERIAL CONFINED WITH HEADSPACE IN SEALED CONTAINERS, THAT COMPRISES REVOLVING A SEALED CONTAINER OF THE MATERIAL ABOUT A HORIZONTAL AXIS AT SUCH A SPEED THAT CENTRIFUGAL FORCE ACTING ON THE OUTERMOST PORTION OF THE REVOLVING MATERIAL IS SLIGHTLY LESS THAN THE FORCE OF GRAVITY TO EFFECT OPTIMUM AGITATION OF THE MATERIAL, CONTINUOUSLY SENSING THE TEMPERATURE OF THE MATERIAL IN THE CONTAINER AS ITS REVOLVES, SUBJECTING THE REVOLVING CONTAINER TO THE INFLUENCE OF AN ATMOSPHERE OF FLUID HEATING MEDIUM UNDER PRESSURE, INCREASING THE PRESSURE OF THE FLUID HEATING MEDIUM IN REPONSE TO INCREASES IN THE TEMPERATURE OF THE MATERIAL BEING STERILIZED AS IT IS SENSED WHILE REVOLVING TO MAINTAIN PREDETERMINED PRESSURE AND TEMPERATURE DIFFERENTIALS BETWEEN THE EXTERIOR AND THE INTERIOR OF THE CONTAINER, THEN WHEN THE MATERIAL IN THE CONTAINER BECOMES HEATED TO A PREDETERMIND MAXIMUM TEMPERATURE SUBJECTING THE REVOLVING CONTAINER TO THE INFLUENCE OF A FLUID COOLING MEDIUM IN AN ATMOSPHERE UNDER PRESSURE, DECREASING THE PRESSURE OF THE COOLING ATMOSPHERE IN RESPONSE TO REDUCTION OF TEMPERATURE OF THE MATERIAL AS IT IS SENSED WHILE COOLING TO MAINTAIN A PREDETERMINED PRESSURE DIFFERENTIAL ON THE CONTAINER, AND STOPPING THE REVOLVING AND HEAT EXCHANGING OPERATIONS WHEN THE MATERIAL IN THE CONTAINER BECOMES COOLED TO A PREDETERMINED MINIMUM TEMPERATURE.
Claim 2
Independent Claim
209 words
THE METHOD OF STERILIZING MATERIAL CONFINED WITH HEADSPACE IN SEALED CONTAINERS, THAT COMPRISES REVOLVING A SEALED CONTAINER OF THE MATERIAL ABOUT A HORIZONTAL AXIS AT SUCH A SPEED THAT CENTRIFUGAL FORCE ACTING ON THE OUTERMOST PORTION OF THE REVOLVING MATERIAL IS SLIGHTLY LESS THAN THE FORCE OF GRAVITY TO EFFECT OPTIMUM AGITATION OF THE MATERIAL, CONTINUOUSLY SENSING THE TEMPERATURE OF THE MATERIAL IN THE CONTAINER AS ITS REVOLVES, SUBJECTING THE REVOLVING CONTAINER TO THE INFLUENCE OF AN ATMOSPHERE OF FLUID HEATING MEDIUM UNDER PRESSURE, INCREASING THE PRESSURE OF THE FLUID HEATING MEDIUM IN REPONSE TO INCREASES IN THE TEMPERATURE OF THE MATERIAL BEING STERILIZED AS IT IS SENSED WHILE REVOLVING TO MAINTAIN PREDETERMINED PRESSURE AND TEMPERATURE DIFFERENTIALS BETWEEN THE EXTERIOR AND THE INTERIOR OF THE CONTAINER, THEN WHEN THE MATERIAL IN THE CONTAINER BECOMES HEATED TO A PREDETERMIND MAXIMUM TEMPERATURE SUBJECTING THE REVOLVING CONTAINER TO THE INFLUENCE OF A FLUID COOLING MEDIUM IN AN ATMOSPHERE UNDER PRESSURE, DECREASING THE PRESSURE OF THE COOLING ATMOSPHERE IN RESPONSE TO REDUCTION OF TEMPERATURE OF THE MATERIAL AS IT IS SENSED WHILE COOLING TO MAINTAIN A PREDETERMINED PRESSURE DIFFERENTIAL ON THE CONTAINER, AND STOPPING THE REVOLVING AND HEAT EXCHANGING OPERATIONS WHEN THE MATERIAL IN THE CONTAINER BECOMES COOLED TO A PREDETERMINED MINIMUM TEMPERATURE.
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) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |