US2752040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sink-float separatory apparatus
Assignee: Ore and Chemical Corp
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Filing: 1953-08-17
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Granted: 1956-06-26
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Expires: 1973-08-17
Abstract
No abstract record available.
Inventors
- 👤 Schreiber Rudolf
- 👤 Gerhart W Schuetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:22
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/28; B03B5/30; B03B5/36; B03B11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
APPARATUS FOR GRAVITY SEPARATION OF MATERIALS IN LIQUID MEDIA, COMPRISING A VESSEL TO CONTAIN A POOL OF LIQUID MEDIUM, SAID VESSEL BEING OF GENERALLY ARCUATE FORM IN VERTICAL SECTION, A RAKE MOUNTED FOR OSCILLATION WITH REFERENCE TO A HORIZONTAL AXIS LOCATED ABOVE THE SURFACE OF THE POOL SO THAT THE RAKE MOVES IN A GENERALLY ARCUATE PATH ADJACENT THE INNER SURFACE OF THE VESSEL, DISCHARGE OUTLETS AT THE RESPECTIVE ENDS OF SAID ARCUATE
Claim 2
Dependent Claim
73 words
APPARATUS FOR GRAVITY SEPARATION OF MATERIALS IN LIQUID MEDIA, COMPRISING A VESSEL TO CONTAIN A POOL OF LIQUID MEDIUM, SAID VESSEL BEING OF GENERALLY ARCUATE FORM IN VERTICAL SECTION, A RAKE MOUNTED FOR OSCILLATION WITH REFERENCE TO A HORIZONTAL AXIS LOCATED ABOVE THE SURFACE OF THE POOL SO THAT THE RAKE MOVES IN A GENERALLY ARCUATE PATH ADJACENT THE INNER SURFACE OF THE VESSEL, DISCHARGE OUTLETS AT THE RESPECTIVE ENDS OF SAID ARCUATE
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) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |