US3278027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grit reclamation method
Assignee: Ajem Laboratories Inc
•
Filing: 1963-05-24
•
Granted: 1966-10-11
•
Expires: 1983-05-24
Abstract
No abstract record available.
Inventors
- 👤 Willard L Johnson
- 👤 Robert G Millhiser
- 👤 Nicholas J Panzica
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:43
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/62; B03B5/623
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE METHOD OF HYDRAULIC CLASSIFICATION OF REUSABLE SOLID PARTICLES FROM WASTE MATTER WHICH COMPRISES COLLECTING A SUSPENSION IN LIQUID OF SAID SOLID PARTICLES AND WASTE MATTER IN A ZONE OF A PREDETERMINED SIZE, SETTLING SAID SOLID PARTICLES INTO THE BOTTOM OF SAID ZONE FROM WHICH THEY MAY BE WITHDRAWN FOR REUSE QUIESENTLY OVERFLOWING EXCESS LIQUID SAID ZONE TOGETHER WITH SLOWER SETTLING WASTE MATTER FROM A MULTITUDE OF ADJACENT PERIPHERAL AREAS IN A PLURALITY OF DIVERGENT DIRECTIONS FROM EACH AREA OVER A LINEARLY EXTENDED, SUBSTANTIALLY HORIZONTAL, TORTUOUSLY SHAPED, BOUNDARY OCCURRING AT THE TOP OUTER PERIPHERY OF SAID ZONE, WHEREBY A MORE EFFECTIVE SKIMMING OVERFLOW FROM SAID ZONE IS ACCOMPLISHED.
Claim 2
Independent Claim
108 words
THE METHOD OF HYDRAULIC CLASSIFICATION OF REUSABLE SOLID PARTICLES FROM WASTE MATTER WHICH COMPRISES COLLECTING A SUSPENSION IN LIQUID OF SAID SOLID PARTICLES AND WASTE MATTER IN A ZONE OF A PREDETERMINED SIZE, SETTLING SAID SOLID PARTICLES INTO THE BOTTOM OF SAID ZONE FROM WHICH THEY MAY BE WITHDRAWN FOR REUSE QUIESENTLY OVERFLOWING EXCESS LIQUID SAID ZONE TOGETHER WITH SLOWER SETTLING WASTE MATTER FROM A MULTITUDE OF ADJACENT PERIPHERAL AREAS IN A PLURALITY OF DIVERGENT DIRECTIONS FROM EACH AREA OVER A LINEARLY EXTENDED, SUBSTANTIALLY HORIZONTAL, TORTUOUSLY SHAPED, BOUNDARY OCCURRING AT THE TOP OUTER PERIPHERY OF SAID ZONE, WHEREBY A MORE EFFECTIVE SKIMMING OVERFLOW FROM SAID ZONE IS ACCOMPLISHED.
References Cited (Backward Citations)
US1512561A
Cited
US1333287A
Cited
US1702203A
Cited
US2200587A
Cited
US2591830A
Cited
US3140259A
Cited
US3150467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |