US3134384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Downflow countercurrent washing apparatus
Assignee: Improved Machinery Inc
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Filing: 1963-05-20
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Granted: 1964-05-26
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 John P Rich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:48
CPC Classifications
D; D06; D06B; D06B5/00; D06B2700/00; D06B2700/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
WOOD CHIP WASHING APPRATUS COMPRISING A GENERALLY UPRIGHT ELONGATED WASHING VESSEL HAVING AN INLET ADJACENT ITS UPPER END FOR RECEIVING TREATED WOOD CHIPS, TAMPER MEANS MOUNTED ADJACENT THE UPPER END OF SAID VESSEL AND POSITIONED ADJACENT SAID INLET FOR ADVANCING THE TREATED WOOD CHIPS DOWNWARDLY THROUGH SAID WASHING VESSEL SUBSTANTIALLY INDEPENDENTLY OF THE MOVEMENT OF LIQUID IN SAID WASHING VESSEL, MEANS FOR FEEDING WASHING LIQUID INTO SAID WASHING VESSEL ADJACENT THE LOWER END THEREOF, MOVING IT IN AN UPWARD DIRECTION THROUGH SAID VESSEL AND DISCHARGING IT ADJACENT THE UPPER END OF SAID VESSEL, AND DISCHARGING MEANS FOR DISCHARGING WASHED TREATED CHIPS FROM THE LOWER END OF SAID VESSEL.
Claim 2
Dependent Claim
108 words
WOOD CHIP WASHING APPRATUS COMPRISING A GENERALLY UPRIGHT ELONGATED WASHING VESSEL HAVING AN INLET ADJACENT ITS UPPER END FOR RECEIVING TREATED WOOD CHIPS, TAMPER MEANS MOUNTED ADJACENT THE UPPER END OF SAID VESSEL AND POSITIONED ADJACENT SAID INLET FOR ADVANCING THE TREATED WOOD CHIPS DOWNWARDLY THROUGH SAID WASHING VESSEL SUBSTANTIALLY INDEPENDENTLY OF THE MOVEMENT OF LIQUID IN SAID WASHING VESSEL, MEANS FOR FEEDING WASHING LIQUID INTO SAID WASHING VESSEL ADJACENT THE LOWER END THEREOF, MOVING IT IN AN UPWARD DIRECTION THROUGH SAID VESSEL AND DISCHARGING IT ADJACENT THE UPPER END OF SAID VESSEL, AND DISCHARGING MEANS FOR DISCHARGING WASHED TREATED CHIPS FROM THE LOWER END OF SAID VESSEL.
References Cited (Backward Citations)
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US2452142A
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US2534324A
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US2909050A
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US2845936A
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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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |