US3341280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilization apparatus and method
Assignee: Norda Essential Oil and Chemical Co
•
Filing: 1963-06-20
•
Granted: 1967-09-12
•
Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Eolkin Dave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:32
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/40; A23B2/42; A23B2/425; A23B2/70; A23B2/704
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A CONTINUOUS METHOD FOR STERILIZING A PARTICULATE MATERIAL COMPRISING INTRODUCING SAID MATERIAL INTO AN ENCLOSED TREATMENT ZONE, FLUIDIZING THE MATERIAL IN SAID ZONE WITH A STERILIZING GAS TO STERILIZE THE SAME, DISCHARGING THE STERILIZED MATERIAL FROM SAID ZONE WHILE INTRODUCING MORE MATERIAL TO SAID ZONE TO BE STERILIZED, AND CONTINUOUSLY MAINTAINING THE GAS PRESSURE IN SAID TREATMENT ZONE ABOVE THE FLUIDIZED MATERIAL AT A PRESELECTED PRESSURE BELOW THE EXTERNAL ATMOSPHERE BY REMOVING GAS FROM SAID TREATMENT ZONE, AND RECYCLING ONLY A PORTION OF THE REMOVED GAS WHEREBY SAID INTRODUCING, FLUIDIZING AND DISCHARGING STEPS RESULT IN SUBSTANTIALLY NO CONTAMINATION OF THE AMBIENT ATMOSPHERE WITH SAID STERILIZING GAS.
Claim 2
Dependent Claim
106 words
A CONTINUOUS METHOD FOR STERILIZING A PARTICULATE MATERIAL COMPRISING INTRODUCING SAID MATERIAL INTO AN ENCLOSED TREATMENT ZONE, FLUIDIZING THE MATERIAL IN SAID ZONE WITH A STERILIZING GAS TO STERILIZE THE SAME, DISCHARGING THE STERILIZED MATERIAL FROM SAID ZONE WHILE INTRODUCING MORE MATERIAL TO SAID ZONE TO BE STERILIZED, AND CONTINUOUSLY MAINTAINING THE GAS PRESSURE IN SAID TREATMENT ZONE ABOVE THE FLUIDIZED MATERIAL AT A PRESELECTED PRESSURE BELOW THE EXTERNAL ATMOSPHERE BY REMOVING GAS FROM SAID TREATMENT ZONE, AND RECYCLING ONLY A PORTION OF THE REMOVED GAS WHEREBY SAID INTRODUCING, FLUIDIZING AND DISCHARGING STEPS RESULT IN SUBSTANTIALLY NO CONTAMINATION OF THE AMBIENT ATMOSPHERE WITH SAID STERILIZING GAS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |