Patent US3291306A successfully refreshed from Google Patents.
US3291306A
Expired / Lapsed
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Concentrating table
Assignee: Deister Concentrator Co Inc
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Filing: 1965-06-28
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Granted: 1966-12-13
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Spencer A Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:04
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/02; B03B5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A MULTIPLE-DECK PENDANTLY SUPPORTED CONCENTRATING TABLE OF THE CHARACTER IN WHICH THE RECIPROCATING MOTION IS GENERATED BY A PENDANTLY SUPPORTED HEAD MOTION OF THE POLYECCENTRIC FLYWHEEL TYPE HAVING QUICKER REVERSAL OF THRUST AT ONE END OF ITS STROKE THAN AT THE OTHER END, THE IMPROVEMENT WHICH COMPRISES, EACH DECK HAVING, INDEPENDENTLY OF OTHER DECKS, A FLEXIBLE CABLE EXTENDING SUBSTANTIALLY VERTICAL FROM ITS CORNER MOST REMOTE FROM THE HEAD MOTION AND MOVABLE MEANS FOR EXERTING AN UPWARD FORCE ON SAID FLEXIBLE CABLE.
Claim 2
Dependent Claim
82 words
IN A MULTIPLE-DECK PENDANTLY SUPPORTED CONCENTRATING TABLE OF THE CHARACTER IN WHICH THE RECIPROCATING MOTION IS GENERATED BY A PENDANTLY SUPPORTED HEAD MOTION OF THE POLYECCENTRIC FLYWHEEL TYPE HAVING QUICKER REVERSAL OF THRUST AT ONE END OF ITS STROKE THAN AT THE OTHER END, THE IMPROVEMENT WHICH COMPRISES, EACH DECK HAVING, INDEPENDENTLY OF OTHER DECKS, A FLEXIBLE CABLE EXTENDING SUBSTANTIALLY VERTICAL FROM ITS CORNER MOST REMOTE FROM THE HEAD MOTION AND MOVABLE MEANS FOR EXERTING AN UPWARD FORCE ON SAID FLEXIBLE CABLE.
References Cited (Backward Citations)
US3075644A
Cited
US3241674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |