US2639991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canning process
Assignee: Individual
•
Filing: 1951-02-16
•
Granted: 1953-05-26
•
Expires: 1971-02-16
Abstract
No abstract record available.
Inventors
- 👤 Ball Charles Olin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:24
CPC Classifications
B; B65; B65B; B65B55/00; B65B55/02; B65B55/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A CANNING PROCESS FOR A LOW-ACID FOOD PRODUCT WHICH COMPRISES HEATING OF THE FOOD PRODUCT TO A MAXIMUM STERILIZATION TEMPERATURE FOR A RELATIVELY SHORT PERIOD OF TIME UNDER A SUPERATMOSPHERIC PRESSURE GREAT ENOUGH TO PREVENT BOILING OF THE PRODUCT LIQUID, COOLING THE PRODUCT FROM SUCH MAXIMUM TEMPERATURE TO A FILLING TEMPERATURE ABOVE THE BOILING POINT OF THE PRODUCT LIQUID AT ATMOSPHERIC PRESSURE, WHILE MAINTAINING THE PRODUCT UNDER SUPERATMOSPHERIC CONDITIONS OF PRESSURE SUFFICIENT TO INHIBIT BOILING OF THE PRODUCT LIQUID, FILLING THE PRODUCT WHILE MAINTAINING A SUPERATMOSPHERIC CONDITION OF PRESSURE ABOUT THE PRODUCT INTO PREVIOUSLY STERILIZED CONTAINERS, CAUSING STEAM TO BE GENERATED WITHIN THE CONTAINER AND DURING THE EMISSION OF STEAM APPLYING A PREVIOUSLY STERILIZED COVER LOOSELY TO THE FILLED CONTAINER, AND PERMANENTLY AND SECURED SEALING THE COVER TO THE CONTAINER IN AN ATMOSPHERE HAVING A PRESSURE VALUE LOWER THAN THE VALUE OF THE PRESSURE EXISTING ABOUT THE PRODUCT AT THE TIME OF THE FILLING OF THE CONTAINER TO CAUSE THE EMISSION OF STEAM FROM UNDER THE LOOSELY APPLIED COVER TO CONTINUE UNTIL THE CONTAINER HAS BEEN COMPLETELY SEALED.
Claim 2
Dependent Claim
178 words
A CANNING PROCESS FOR A LOW-ACID FOOD PRODUCT WHICH COMPRISES HEATING OF THE FOOD PRODUCT TO A MAXIMUM STERILIZATION TEMPERATURE FOR A RELATIVELY SHORT PERIOD OF TIME UNDER A SUPERATMOSPHERIC PRESSURE GREAT ENOUGH TO PREVENT BOILING OF THE PRODUCT LIQUID, COOLING THE PRODUCT FROM SUCH MAXIMUM TEMPERATURE TO A FILLING TEMPERATURE ABOVE THE BOILING POINT OF THE PRODUCT LIQUID AT ATMOSPHERIC PRESSURE, WHILE MAINTAINING THE PRODUCT UNDER SUPERATMOSPHERIC CONDITIONS OF PRESSURE SUFFICIENT TO INHIBIT BOILING OF THE PRODUCT LIQUID, FILLING THE PRODUCT WHILE MAINTAINING A SUPERATMOSPHERIC CONDITION OF PRESSURE ABOUT THE PRODUCT INTO PREVIOUSLY STERILIZED CONTAINERS, CAUSING STEAM TO BE GENERATED WITHIN THE CONTAINER AND DURING THE EMISSION OF STEAM APPLYING A PREVIOUSLY STERILIZED COVER LOOSELY TO THE FILLED CONTAINER, AND PERMANENTLY AND SECURED SEALING THE COVER TO THE CONTAINER IN AN ATMOSPHERE HAVING A PRESSURE VALUE LOWER THAN THE VALUE OF THE PRESSURE EXISTING ABOUT THE PRODUCT AT THE TIME OF THE FILLING OF THE CONTAINER TO CAUSE THE EMISSION OF STEAM FROM UNDER THE LOOSELY APPLIED COVER TO CONTINUE UNTIL THE CONTAINER HAS BEEN COMPLETELY SEALED.
References Cited (Backward Citations)
US2514027A
Cited
US2541113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |