US3004876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for washing fibrous material
Assignee: International Basic Economy Corp
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Filing: 1957-03-20
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Granted: 1961-10-17
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Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Carl W Zies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:29
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/02; B; B30; B30B; B30B9/00; B30B9/02; B30B9/12; B30B9/16; B30B9/163; B30B9/26; B30B9/267
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A METHOD OF WASHING RESIDUAL DIGESTION LIQUOR FROM A DIGESTED MASS OF FIBROUS MATERIAL, SAID METHOD COMPRISING PASSING SAID MATERIAL THROUGH AN ELONGATED ENCLOSURE FROM AN ENTRY END TO A DISCHARGE END THEREOF, APPLYING PRESSURE CONTINUOUSLY TO THE MATERIAL IN A DIRECTION ADAPTED TO SIMULTANEOUSLY COMPACT THE MATERIAL AND ASSIST IN MOVING IT IN THE DIRECTION AFORESAID, ARRANGING SAID ENCLOSURE INTO A SERIES OF OPERATING SECTIONS, EACH SECTION CONSISTING OF A WASHING ZONE AND A DRAINAGE ZONE, PROVIDING APERTURES IN THE ENCLOSURE WALL IN REGISTRY WITH EACH DRAINAGE ZONE, INJECTING LIQUID INTO EACH WASHING ZONE, COLLECTING DRAINED LIQUID WHICH ESCAPES THROUGH THE APERTURES IN EACH DRAINAGE ZONE, RE-INJECTING THE COLLECTED LIQUID-LIQUOR SOLUTION INTO A RESPECTIVE WASHING ZONE IN A SECTION NEARER TO THE ENTRY END OF THE ENCLOSURE WHEREBY TO ESTABLISH A FLOW OF WASHING LIQUID GRADUALLY INCREASING IN LIQUOR CONCENTRATION IN A DIRECTION COUNTER TO THE DIRECTION OF MOVEMENT OF THE MATERIAL BEING WASHED, PREPRESSING THE MATERIAL TO REMOVE A RELATIVELY READILY REMOVABLE FRACTION OF LIQUOR FROM THE MATERIAL, CONTINUOUSLY CHARGING THE PREPRESSED MATERIAL INTO SAID ENCLOSURE, AND INJECTING INTO THE MATERIAL BEING PREPRESSED THE DRAINAGE LIQUID FROM A DRAINAGE ZONE OF SAID ENCLOSURE.
Claim 2
Independent Claim
195 words
A METHOD OF WASHING RESIDUAL DIGESTION LIQUOR FROM A DIGESTED MASS OF FIBROUS MATERIAL, SAID METHOD COMPRISING PASSING SAID MATERIAL THROUGH AN ELONGATED ENCLOSURE FROM AN ENTRY END TO A DISCHARGE END THEREOF, APPLYING PRESSURE CONTINUOUSLY TO THE MATERIAL IN A DIRECTION ADAPTED TO SIMULTANEOUSLY COMPACT THE MATERIAL AND ASSIST IN MOVING IT IN THE DIRECTION AFORESAID, ARRANGING SAID ENCLOSURE INTO A SERIES OF OPERATING SECTIONS, EACH SECTION CONSISTING OF A WASHING ZONE AND A DRAINAGE ZONE, PROVIDING APERTURES IN THE ENCLOSURE WALL IN REGISTRY WITH EACH DRAINAGE ZONE, INJECTING LIQUID INTO EACH WASHING ZONE, COLLECTING DRAINED LIQUID WHICH ESCAPES THROUGH THE APERTURES IN EACH DRAINAGE ZONE, RE-INJECTING THE COLLECTED LIQUID-LIQUOR SOLUTION INTO A RESPECTIVE WASHING ZONE IN A SECTION NEARER TO THE ENTRY END OF THE ENCLOSURE WHEREBY TO ESTABLISH A FLOW OF WASHING LIQUID GRADUALLY INCREASING IN LIQUOR CONCENTRATION IN A DIRECTION COUNTER TO THE DIRECTION OF MOVEMENT OF THE MATERIAL BEING WASHED, PREPRESSING THE MATERIAL TO REMOVE A RELATIVELY READILY REMOVABLE FRACTION OF LIQUOR FROM THE MATERIAL, CONTINUOUSLY CHARGING THE PREPRESSED MATERIAL INTO SAID ENCLOSURE, AND INJECTING INTO THE MATERIAL BEING PREPRESSED THE DRAINAGE LIQUID FROM A DRAINAGE ZONE OF SAID ENCLOSURE.
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) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |