US2685520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for preserving products in sealed containers
Assignee: James Dole Engineering Co
•
Filing: 1951-07-23
•
Granted: 1954-08-03
•
Expires: 1971-07-23
Abstract
No abstract record available.
Inventors
- 👤 Martin William Mck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:23
CPC Classifications
B; B65; B65B; B65B55/00; B65B55/02; B65B55/04; B65B55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN THE METHOD OF CANNING WHEREIN A CONTINUOUS FLOW OF STEAM SUPERHEATED TO A TEMPERATURE AT ATMOSPHERIC PRESSURE SUBSTANTIALLY IN EXCESS OF 212* F. IS INTRODUCED INTO AN ENCLOSED SYSTEM OPERN TO THE ATMOSPHERE AND INCLUDING A CONTAINER STERILIZING ZONE, A ZONE IN WHICH A PRESTERILIZED COOLED PRODUCT IS FILLED INTO SAID CONTAINERS, A COVE STERILIZING ZONE, AND A ZONE IN WHICH THE COVERS ARE APPLIED TO THE FILLED CONTAINERS, ALL OF SAID ZONES BEING IN INTERCOMMUNICATION, THE STEPS OF CONTINUOUSLY DISPLACING SAID STEAM IN SAID PRODUCT FILLING ZONE TO MINIMIZE RISE IN TEMPERATURE OF SAID COOLED PRODUCT BY CONTINUOUSLY INTRODUCING INTO SAID PRODUCT FILLING ZONE AN ESSENTIALLY NON-AQUEOUS AND STERILE GAS WHILE SIMULTANEOUSLY MAINTAINING INDEPENDENT FLOW OF SAID SUPERHEATED STEAM IN SAID APPARATUS, AND COOLING SAID GAS PRIOR TO INTRODUCTION THEREOF INTO SAID PRODUCT FILLING ZONE.
Claim 2
Dependent Claim
137 words
IN THE METHOD OF CANNING WHEREIN A CONTINUOUS FLOW OF STEAM SUPERHEATED TO A TEMPERATURE AT ATMOSPHERIC PRESSURE SUBSTANTIALLY IN EXCESS OF 212* F. IS INTRODUCED INTO AN ENCLOSED SYSTEM OPERN TO THE ATMOSPHERE AND INCLUDING A CONTAINER STERILIZING ZONE, A ZONE IN WHICH A PRESTERILIZED COOLED PRODUCT IS FILLED INTO SAID CONTAINERS, A COVE STERILIZING ZONE, AND A ZONE IN WHICH THE COVERS ARE APPLIED TO THE FILLED CONTAINERS, ALL OF SAID ZONES BEING IN INTERCOMMUNICATION, THE STEPS OF CONTINUOUSLY DISPLACING SAID STEAM IN SAID PRODUCT FILLING ZONE TO MINIMIZE RISE IN TEMPERATURE OF SAID COOLED PRODUCT BY CONTINUOUSLY INTRODUCING INTO SAID PRODUCT FILLING ZONE AN ESSENTIALLY NON-AQUEOUS AND STERILE GAS WHILE SIMULTANEOUSLY MAINTAINING INDEPENDENT FLOW OF SAID SUPERHEATED STEAM IN SAID APPARATUS, AND COOLING SAID GAS PRIOR TO INTRODUCTION THEREOF INTO SAID PRODUCT FILLING ZONE.
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) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |