Method for filling vertical process vessels with particulate materials
Abstract
Abstract A QUICK AND RELATIVELY INEXPENSIVE METHOD FOR FILLING VERTICAL PROCESS VESSELS, FOR INSTANCE, REACTORS OR PACKED TOWERS, WITH PARTICULATE MATERIAL SUCH AS CATALYST OR OTHER PACKING, WHILE PREVENTING CONTAMINATION AND DAMAGING THEREOF. A SPECIAL FLEXIBLE BAG WITH A BOTTOM SEAL WHICH MAY BE OPENED BY MEANS OF A RELEASE LINE IS FILLED WITH THE MATERIAL AND THEN GENTLY LOWERED INTO THE VESSEL BY MEANS OF AN ELEVATOR ATTACHED TO THE UPPER PORTION OF THE BAG. THE BOTTOM SEAL IS THEN OPENED BY PULLING UPON THE RELEASE LINE, PERMITTING THE CONTAINED MATERIAL TO DROP GENTLY INTO THE VESSEL. THE BAG IS RETRIEVED BY PULLING UP ON THE ELEVATOR LINE, AND THE PROCESS IS REPEATED UNTIL THE VESSEL IS FILLED TO THE DESIRED LEVEL.
Inventors
- 👤 Tommy Ray Edwards
Bibliographic Details
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |