US3211190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of packaging pulverulent material
Assignee: Individual
•
Filing: 1963-06-05
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Granted: 1965-10-12
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Expires: 1983-06-05
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:37
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/20; B65B1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
THE METHOD OF PACKAGING PULVERULENT MATERIAL FOR COMMERCIAL DISTRIBUTION WHICH COMPRISES POSITIONING THE MOUTH OF A VENDABLE CONTAINER BENEATH A RESTRICTED OUTLET OF A HOPPER CONTAINING THE MATERIAL TO BE PACKED, EFFECTING A SEAL BETWEEN SAID OUTLET AND SAID MOUTH, CREATING A PRESSURE DIFFERENTIAL BETWEEN THE INTERIOR OF THE CONTAINER AND THE TOP SURFACE OF THE MATERIAL TO FORCE SOME OF THE MATERIAL FROM WITHIN THE HOPPER THROUGH SAID OUTLET INTO THE CONTAINER WHILE SIMULTANEOUSLY REMOVING AIR FROM WITHIN THE CONTAINER THROUGH A LOWER SCREEN UNIT HAVING THE EFFECTIVE PORTION THEREOF COMPLETELY OVERLYING THE CONTAINER TO FILL THE CONTAINER IN A SINGLE RAPID MATERIAL FLOW STEP WITH THE MATERIAL BEING IN A COMPACTED STATE AFTER BEING PLACED WITHIN THE CONTAINER AND WHILE PREVENTING THE LOSS OF MATERIAL, RELIEVING THE PRESSURE DIFFERENTIAL TO PREVENT THE LOSS OF MATERIAL THROUGH SAID OUTLET SLIGHTLY SEPARATING THE FILLED CONTAINER FROM THE SCREEN UNIT, AND THEN CLEANING THE ENTIRE SCREEN UNIT IN A SINGLE BACK BLOWING OF GAS THERETHROUGH WITH ALL OF THE MATERIAL REMOVED FROM THE SCREEN UNIT BEING DIRECTED INTO THE FILLED CONTAINER.
Claim 2
Independent Claim
180 words
THE METHOD OF PACKAGING PULVERULENT MATERIAL FOR COMMERCIAL DISTRIBUTION WHICH COMPRISES POSITIONING THE MOUTH OF A VENDABLE CONTAINER BENEATH A RESTRICTED OUTLET OF A HOPPER CONTAINING THE MATERIAL TO BE PACKED, EFFECTING A SEAL BETWEEN SAID OUTLET AND SAID MOUTH, CREATING A PRESSURE DIFFERENTIAL BETWEEN THE INTERIOR OF THE CONTAINER AND THE TOP SURFACE OF THE MATERIAL TO FORCE SOME OF THE MATERIAL FROM WITHIN THE HOPPER THROUGH SAID OUTLET INTO THE CONTAINER WHILE SIMULTANEOUSLY REMOVING AIR FROM WITHIN THE CONTAINER THROUGH A LOWER SCREEN UNIT HAVING THE EFFECTIVE PORTION THEREOF COMPLETELY OVERLYING THE CONTAINER TO FILL THE CONTAINER IN A SINGLE RAPID MATERIAL FLOW STEP WITH THE MATERIAL BEING IN A COMPACTED STATE AFTER BEING PLACED WITHIN THE CONTAINER AND WHILE PREVENTING THE LOSS OF MATERIAL, RELIEVING THE PRESSURE DIFFERENTIAL TO PREVENT THE LOSS OF MATERIAL THROUGH SAID OUTLET SLIGHTLY SEPARATING THE FILLED CONTAINER FROM THE SCREEN UNIT, AND THEN CLEANING THE ENTIRE SCREEN UNIT IN A SINGLE BACK BLOWING OF GAS THERETHROUGH WITH ALL OF THE MATERIAL REMOVED FROM THE SCREEN UNIT BEING DIRECTED INTO THE FILLED 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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |