Patent US3193273A successfully refreshed from Google Patents.
US3193273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating metals
Assignee: COLLEGE RES CO
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Filing: 1961-06-07
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Granted: 1965-07-06
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Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Miller
- 👤 Evans Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
C; C22; C22C; C22C3/00; C22B; C22B7/00; C22B7/001; C22B7/004; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S266/00; Y10S266/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
AN APPARATUS FOR SEPARATING MATERIALS, COMPRISING AN INCLINED TUBE TO CONVEY A MATERIAL COMPOSED OF A HIGHER MELTING POINT SUBSTANCE AND A LOWER MELTING POINT SUBSTANCE WITH SAID MATERIAL ADAPTED TO BE INTRODUCED INTO THE HIGHER END OF THE TUBE AND DISCHARGED FROM THE LOWER END THEREOF, MEANS FOR ROTATING THE TUBE ABOUT THE AXIS THEREOF, MEANS DISPOSED WITHIN THE TUBE FOR PROVIDING A TUMBLING ACTION FOR THE MATERIAL PASSING THERETHROUGH, HEATING MEANS FOR HEATING THE MATERIAL DISPOSED WITHIN THE TUBE TO HEAT THE MATERIAL TO A TEMPERATURE ABOVE THE MELTING POINT OF THE LOWER MELING POINT SUBSTANCE TO MELT THE SAME AND BELOW THE MELTING POINT OF THE HIGHER MELTING POINT SUBSTANCE, AND A FORAMINOUS MEMBER SECURED TO AND EXTENDING OUTWARDLY FROM THE LOWER END OF THE TUBE WITH THE MOLTEN LOWER MELTING POINT SUBSTANCE BEING DISCHARGED FROM THE LOWER END OF THE TUBE AND PASSING DOWNWARDLY THROUGH SAID FORAMINOUS MEMBER TO A COLLECTION RESERVOIR AND THE UNMELTED HIGHER MELTING POINT SUBSTANCE PASSING OVER SAID FORAMINUOUS MEMBER AND BEING COLLECTED IN A SECOND COLLECTION RESERVOIR.
Claim 2
Independent Claim
176 words
AN APPARATUS FOR SEPARATING MATERIALS, COMPRISING AN INCLINED TUBE TO CONVEY A MATERIAL COMPOSED OF A HIGHER MELTING POINT SUBSTANCE AND A LOWER MELTING POINT SUBSTANCE WITH SAID MATERIAL ADAPTED TO BE INTRODUCED INTO THE HIGHER END OF THE TUBE AND DISCHARGED FROM THE LOWER END THEREOF, MEANS FOR ROTATING THE TUBE ABOUT THE AXIS THEREOF, MEANS DISPOSED WITHIN THE TUBE FOR PROVIDING A TUMBLING ACTION FOR THE MATERIAL PASSING THERETHROUGH, HEATING MEANS FOR HEATING THE MATERIAL DISPOSED WITHIN THE TUBE TO HEAT THE MATERIAL TO A TEMPERATURE ABOVE THE MELTING POINT OF THE LOWER MELING POINT SUBSTANCE TO MELT THE SAME AND BELOW THE MELTING POINT OF THE HIGHER MELTING POINT SUBSTANCE, AND A FORAMINOUS MEMBER SECURED TO AND EXTENDING OUTWARDLY FROM THE LOWER END OF THE TUBE WITH THE MOLTEN LOWER MELTING POINT SUBSTANCE BEING DISCHARGED FROM THE LOWER END OF THE TUBE AND PASSING DOWNWARDLY THROUGH SAID FORAMINOUS MEMBER TO A COLLECTION RESERVOIR AND THE UNMELTED HIGHER MELTING POINT SUBSTANCE PASSING OVER SAID FORAMINUOUS MEMBER AND BEING COLLECTED IN A SECOND COLLECTION RESERVOIR.
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |