US3213901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can filling method
Assignee: Luthi Machinery and Engineering Co Inc
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Filing: 1961-12-04
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Granted: 1965-10-26
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Alois G Luthi
- 👤 Edward E Dutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:10
CPC Classifications
B; B65; B65B; B65B63/00; B65B63/02; B65B63/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE METHOD OF OBTAINING A DESIRED WEIGHT OF A SUBSTANTIALLY HOMOGENEOUS AND COMPRESSIBLE SOLID MATERIAL WHICH COMPRISES FILLING A CONTAINER OF KNOWN VOLUME WITH SAID MATERIAL, FORCING ADDITIONAL OF SAID MATERIAL FROM WITHOUT SAID CONTAINER INTO SAID CONTAINER BY FLUID UNDER A CONSTANT PREDETERMINED SUPERATMOSPHERIC PRESSURE WHILE ALLOWING AIR WITHIN SAID CONTAINER TO ESCAPE THEREFROM, MAINTAINING SAID MATERIAL WITHIN AND WITHOUT SAID CONTAINER AT SAID PREDETERMINED PRESSURE BY SAID FLUID UNDER PRESSURE FOR A PERIOD OF TIME UNTIL THE RESISTANCE OF THE MATERIAL WITHIN SAID CONTAINER TO FURTHER COMPRESSION OPPOSES THE ENTRY OF FURTHER MATERIAL THEREINTO, AND SEPARATING THE MATERIAL WITHIN THE CONTAINER FROM THE MATERIAL WITHOUT THE CONTAINER.
Claim 2
Independent Claim
109 words
THE METHOD OF OBTAINING A DESIRED WEIGHT OF A SUBSTANTIALLY HOMOGENEOUS AND COMPRESSIBLE SOLID MATERIAL WHICH COMPRISES FILLING A CONTAINER OF KNOWN VOLUME WITH SAID MATERIAL, FORCING ADDITIONAL OF SAID MATERIAL FROM WITHOUT SAID CONTAINER INTO SAID CONTAINER BY FLUID UNDER A CONSTANT PREDETERMINED SUPERATMOSPHERIC PRESSURE WHILE ALLOWING AIR WITHIN SAID CONTAINER TO ESCAPE THEREFROM, MAINTAINING SAID MATERIAL WITHIN AND WITHOUT SAID CONTAINER AT SAID PREDETERMINED PRESSURE BY SAID FLUID UNDER PRESSURE FOR A PERIOD OF TIME UNTIL THE RESISTANCE OF THE MATERIAL WITHIN SAID CONTAINER TO FURTHER COMPRESSION OPPOSES THE ENTRY OF FURTHER MATERIAL THEREINTO, AND SEPARATING THE MATERIAL WITHIN THE CONTAINER FROM THE MATERIAL WITHOUT THE CONTAINER.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |