US3210121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for extracting magnetically attracted material
Assignee: Individual
•
Filing: 1962-08-22
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Granted: 1965-10-05
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Struven Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:59
CPC Classifications
E; E21; E21C; E21C45/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
APPARATUS FOR REMOVING MAGNETICALLY ATTRACTED MATERIAL FROM A GEOLOGICAL FORMATION CONTAINING SAID MATERIAL INTERMIXED WITH A QUQNTITY OF OTHER MATERIAL COMPRISING, IN COMBINATION AND IN OPERATIVE RELATIONSHIP, (A) SUCTION SWIRL MEANS AND IMPELLING MEANS OPERATIVELY CONNECTED THERETO ADAPTED TO BE PLACED WITH IN SAID GEOLOGICAL FORMATION, (B) CONTINUOUS MAGNETIC BELT MEANS PARTIALLY SUSPENDED OUTSIDE SAID GEOLOGICAL FORMATION AND ADAPTED TO PASS THERETHROUGH, (C) CONDUCTING MEANS FOR THE MATERIAL SUCKED FROM SAID GEOLOGICAL FORMATION BY SAID SUCTION MEANS SPACED FROM AN OUTSIDE PORTION OF SAID MAGNETIC BELT MEANS, (D) MECHANICAL REMOVAL MEANS AT AN OUTSIDE PORTION OF SAID BELT MEANS, (E) HOPPER MEANS OPERATIVELY CONNECTED WITH SAID MECHANICAL REMOVAL MEANS.
Claim 2
Dependent Claim
109 words
APPARATUS FOR REMOVING MAGNETICALLY ATTRACTED MATERIAL FROM A GEOLOGICAL FORMATION CONTAINING SAID MATERIAL INTERMIXED WITH A QUQNTITY OF OTHER MATERIAL COMPRISING, IN COMBINATION AND IN OPERATIVE RELATIONSHIP, (A) SUCTION SWIRL MEANS AND IMPELLING MEANS OPERATIVELY CONNECTED THERETO ADAPTED TO BE PLACED WITH IN SAID GEOLOGICAL FORMATION, (B) CONTINUOUS MAGNETIC BELT MEANS PARTIALLY SUSPENDED OUTSIDE SAID GEOLOGICAL FORMATION AND ADAPTED TO PASS THERETHROUGH, (C) CONDUCTING MEANS FOR THE MATERIAL SUCKED FROM SAID GEOLOGICAL FORMATION BY SAID SUCTION MEANS SPACED FROM AN OUTSIDE PORTION OF SAID MAGNETIC BELT MEANS, (D) MECHANICAL REMOVAL MEANS AT AN OUTSIDE PORTION OF SAID BELT MEANS, (E) HOPPER MEANS OPERATIVELY CONNECTED WITH SAID MECHANICAL REMOVAL MEANS.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |