Patent US3320768A successfully refreshed from Google Patents.
US3320768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration apparatus for freezing a product under pressure
Assignee: Gorton Corp
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Filing: 1965-08-11
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Granted: 1967-05-23
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Expires: 1985-08-11
Abstract
No abstract record available.
Inventors
- 👤 La Vern H Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:05
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/06; A23B4/062; A23B4/064; F; F25; F25D; F25D13/00; F25D13/06; F25D13/062; F25D25/00; F25D25/04; F25D31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
FREEZING APPARATUS COMPRISING A PLURALITY OF FREEZING TUBES ADAPTED TO RECEIVE MATERIAL TO BE FROZEN, A FILLING MECHANISM BY WHICH THE TUBES ARE SUCCESSIVELY FILLED AND AN UNLOADING MECHANISM FOR UNLOADING FROZEN MATERIAL FROM SAID TUBES IN SUCCESSION, SAID TUBES BEING RELATIVELY MOVABLE WITH RESPECT TO SAID FILLING MECHANISM AND SAID UNLOADING MECHANISM, DRIVING MECHANISM TO PRODUCE SUCH RELATIVE MOVEMENT SO THAT SAID TUBES IN SUCCESSION AND SAID FILLING MECHANISM ARE POSITIONED WITH RESPECT TO EACH OTHER FOR FILLING OF SAID TUBES SUCCESSIVELY BY SAID FILLING MECHANISM AND SO THAT SAID TUBES IN SUCCESSION AND SAID UNLOADING MECHANISM ARE POSITIONED WITH RESPECT TO EACH OTHER FOR UNLOADING OF THE FILLED TUBES SUCCESSIVELY BY SAID UNLOADING MECHANISM, MECHANISM FOR REFRIGERATING THE CONTENTS OF THE TUBES DURING SAID MOVEMENT, AND MECHANISM FOR PRODUCING A CONDITION OF LOWERED AIR PRESSURE WITHIN THE FREEZING TUBE DURING FILLING THEREOF.
Claim 2
Dependent Claim
144 words
FREEZING APPARATUS COMPRISING A PLURALITY OF FREEZING TUBES ADAPTED TO RECEIVE MATERIAL TO BE FROZEN, A FILLING MECHANISM BY WHICH THE TUBES ARE SUCCESSIVELY FILLED AND AN UNLOADING MECHANISM FOR UNLOADING FROZEN MATERIAL FROM SAID TUBES IN SUCCESSION, SAID TUBES BEING RELATIVELY MOVABLE WITH RESPECT TO SAID FILLING MECHANISM AND SAID UNLOADING MECHANISM, DRIVING MECHANISM TO PRODUCE SUCH RELATIVE MOVEMENT SO THAT SAID TUBES IN SUCCESSION AND SAID FILLING MECHANISM ARE POSITIONED WITH RESPECT TO EACH OTHER FOR FILLING OF SAID TUBES SUCCESSIVELY BY SAID FILLING MECHANISM AND SO THAT SAID TUBES IN SUCCESSION AND SAID UNLOADING MECHANISM ARE POSITIONED WITH RESPECT TO EACH OTHER FOR UNLOADING OF THE FILLED TUBES SUCCESSIVELY BY SAID UNLOADING MECHANISM, MECHANISM FOR REFRIGERATING THE CONTENTS OF THE TUBES DURING SAID MOVEMENT, AND MECHANISM FOR PRODUCING A CONDITION OF LOWERED AIR PRESSURE WITHIN THE FREEZING TUBE DURING FILLING THEREOF.
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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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |