Patent US3396762A successfully refreshed from Google Patents.
US3396762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of densifying and deterring deterioration and contamination of discrete particle material in a container
Assignee: DYNABULK CORP
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Filing: 1963-09-09
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Granted: 1968-08-13
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Paton Hamilton Neil King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:27
CPC Classifications
G; G01; G01M; G01M7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE METHOD OF DETERRING DETERIORATION OF DISCRETE PARTICLE MATERIAL IN A CONTAINER, WHICH COMPRISES PROVIDING A CONTAINER HAVING RIGID WALL AND A FLEXIBLE MEMBRANE PARTITION THEREIN HAVING ITS MARGIN SEALED TO THE CONTAINER WALL AT ONE SIDE OF DISCRETE PARTICLE MATERIAL RECEIVED ON THE CONTAINER, REPLACING AIR WITH INERT GAS IN THE CONTAINER AT THE DISCRETE PARTICLE MATERIAL SIDE OF THE MEMBRANE, AND SUPPLYING TO THE CONTAINER BETWEEN THE RIGID CONTAINER WALL AND THE SIDE OF THE MEMBRANE OPPOSITE THE DISCRETE PARTICLE MATERIAL GAS AT A PRESSURE HIGHER THAN ATMOSPHERIC PRESSURE AND HIGHER THAN THE PRESSURE ON THE DISCRETE PARTICLE MATERIAL SIDE OF THE MEMBRANE AND THEREBY SIMULTANEOUSLY MOVING THE MEMBRANE TOWARD THE DISCRETE PARTICLE MATERIAL AND INCREASING THE PRESSURE OF THE INERT GAS TO A PRESSURE GREATER THAN ATMOSPHERIC PRESSURE.
Claim 2
Independent Claim
131 words
THE METHOD OF DETERRING DETERIORATION OF DISCRETE PARTICLE MATERIAL IN A CONTAINER, WHICH COMPRISES PROVIDING A CONTAINER HAVING RIGID WALL AND A FLEXIBLE MEMBRANE PARTITION THEREIN HAVING ITS MARGIN SEALED TO THE CONTAINER WALL AT ONE SIDE OF DISCRETE PARTICLE MATERIAL RECEIVED ON THE CONTAINER, REPLACING AIR WITH INERT GAS IN THE CONTAINER AT THE DISCRETE PARTICLE MATERIAL SIDE OF THE MEMBRANE, AND SUPPLYING TO THE CONTAINER BETWEEN THE RIGID CONTAINER WALL AND THE SIDE OF THE MEMBRANE OPPOSITE THE DISCRETE PARTICLE MATERIAL GAS AT A PRESSURE HIGHER THAN ATMOSPHERIC PRESSURE AND HIGHER THAN THE PRESSURE ON THE DISCRETE PARTICLE MATERIAL SIDE OF THE MEMBRANE AND THEREBY SIMULTANEOUSLY MOVING THE MEMBRANE TOWARD THE DISCRETE PARTICLE MATERIAL AND INCREASING THE PRESSURE OF THE INERT GAS TO A PRESSURE GREATER THAN ATMOSPHERIC PRESSURE.
References Cited (Backward Citations)
US2923826A
Cited
US1405440A
Cited
US1372190A
Cited
US1703782A
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US2824438A
Cited
US2764950A
Cited
US3022923A
Cited
US3172556A
Cited
US3020121A
Cited
US3214221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |