Patent US3208934A successfully refreshed from Google Patents.
US3208934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid treating method
Assignee: Pfaudler Permutit Inc
•
Filing: 1962-04-11
•
Granted: 1965-09-28
•
Expires: 1982-04-11
Abstract
No abstract record available.
Inventors
- 👤 Albert W Kingsbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:04
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; B; B01; B01J; B01J47/00; B01J47/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A METHOD OF TREATING LIQUID BY CONTACT WITH GRANULAR LIQUID TREATING MATERIAL, INCLUDING THE MEASURING OUT OF SUCCESSIVE BATCHES OF LIQUID TREATING MATERIAL OF EQUAL VOLUME WHICH COMPRISES (AE MAINTAINING A STORAGE ZONE CONTAINING A BODY OF LIQUID TREATING MATERIAL AND A RECEIVING ZONE, MAINTAINING IN SAID RECEIVING ZONE BELOW A PREDETERMINED LEVEL THEREIN A MEASURING SPACE OF PREDETERMINED VOLUME SUBSTANTIALLY SMALLER THAN THE VOLUME OF SAID STORAGE ZONE, AND ABOVE SAID PREDETERMINED LEVEL THEREIN A FREE AND UNOBSTRUCTED RISING SPACE, (B) FLOWING LIQUID TO SAID STORAGE ZONE, ESTABLISHING A FLOW OF FLUID SLURRY CONSISTING OF LIQUID AND A BATCH OF GRANDULAR LIQUID TREATING MATERIAL FROM SAID BODY FROM SAID STORAGE ZONE TO SAID RECEIVING ZONE BY WAY OF A DOWNWARDLY OPENIN PIPE IN SAID RECEIVING ZONE, THE OPENING IN SAID PIPE BEING DISPOSED AT SAID PREDETERMINED LEVEL, SETTLING SAID GRANULAR LIQUID TREATING MATERIAL OF SAID SLURRY IN SAID MEASURING SPACE WHILE SIMULTANEOUSLY DRAINING EXCESS LIQUID CONTAINED IN SAID FLUID SLURRY FROM THE LOWER PORTION OF SAID MEASURING SPACE, FLOWING FLUID SLURRY UNTIL SAID SETTLED SLURRY HAS FILLED SAID MEASURING SPACE, RECHED SAID PREDE-
Claim 2
Independent Claim
184 words
A METHOD OF TREATING LIQUID BY CONTACT WITH GRANULAR LIQUID TREATING MATERIAL, INCLUDING THE MEASURING OUT OF SUCCESSIVE BATCHES OF LIQUID TREATING MATERIAL OF EQUAL VOLUME WHICH COMPRISES (AE MAINTAINING A STORAGE ZONE CONTAINING A BODY OF LIQUID TREATING MATERIAL AND A RECEIVING ZONE, MAINTAINING IN SAID RECEIVING ZONE BELOW A PREDETERMINED LEVEL THEREIN A MEASURING SPACE OF PREDETERMINED VOLUME SUBSTANTIALLY SMALLER THAN THE VOLUME OF SAID STORAGE ZONE, AND ABOVE SAID PREDETERMINED LEVEL THEREIN A FREE AND UNOBSTRUCTED RISING SPACE, (B) FLOWING LIQUID TO SAID STORAGE ZONE, ESTABLISHING A FLOW OF FLUID SLURRY CONSISTING OF LIQUID AND A BATCH OF GRANDULAR LIQUID TREATING MATERIAL FROM SAID BODY FROM SAID STORAGE ZONE TO SAID RECEIVING ZONE BY WAY OF A DOWNWARDLY OPENIN PIPE IN SAID RECEIVING ZONE, THE OPENING IN SAID PIPE BEING DISPOSED AT SAID PREDETERMINED LEVEL, SETTLING SAID GRANULAR LIQUID TREATING MATERIAL OF SAID SLURRY IN SAID MEASURING SPACE WHILE SIMULTANEOUSLY DRAINING EXCESS LIQUID CONTAINED IN SAID FLUID SLURRY FROM THE LOWER PORTION OF SAID MEASURING SPACE, FLOWING FLUID SLURRY UNTIL SAID SETTLED SLURRY HAS FILLED SAID MEASURING SPACE, RECHED SAID PREDE-
References Cited (Backward Citations)
US1763783A
Cited
US1770580A
Cited
US2572082A
Cited
US2628192A
Cited
US2572848A
Cited
US2851322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |