Patent US2225755A successfully refreshed from Google Patents.
Patent US3273714A successfully refreshed from Google Patents.
US3273714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular jigs
Assignee: —
•
Filing: —
•
Granted: 1966-09-20
•
Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:11
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/02; B03B5/10; B03B5/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A JIG FOR MINERAL DRESSING COMPRISING: A CIRCULAR JIG BED BASKET; MEANS FOR PULSATING WATER THROUGH SAID BASKET; MEANS FOR DELIVERING A FEED OF SOLID PARTICLES ONTO THE CENTRAL PORTION OF SAID BASKET WHEREBY A BED OF SOLID PARTICLES IS ESTABLISHED ON SAID BASKET; AND SKIMMING MEANS ROTATABLY MOUNTED AROUND SAID DELIVERY MEANS ABOVE SAID BASKET, SAID SKIMMING MEANS COMPRISING ARM MEANS EXTENDING SUBSTANTIALLY FROM SAID DELIVERY MEANS TO THE PERIPHERY OF SAID BASKET, AND BLADE MEANS ATTACHED TO SAID ARM MEANS, THE LOWER EDGE OF SAID BLADE MEANS EXTENDING AT LEAST TO THE TOP OF SAID BASKET AND BEING SHAPED TO CONTOUR THE MAJOR PORTION OF THE SURFACE AREA OF THE BED BETWEEN SAID DELIVERY MEANS AND THE PERIPHERY OF SAID BASKET AND MAINTAIN A UNIFORM BED DEPTH BY DISTRIBUTING FEED EVENLY OVER THE CONTOURED SURFACE OF SAID BED BASKET.
Claim 2
Dependent Claim
141 words
A JIG FOR MINERAL DRESSING COMPRISING: A CIRCULAR JIG BED BASKET; MEANS FOR PULSATING WATER THROUGH SAID BASKET; MEANS FOR DELIVERING A FEED OF SOLID PARTICLES ONTO THE CENTRAL PORTION OF SAID BASKET WHEREBY A BED OF SOLID PARTICLES IS ESTABLISHED ON SAID BASKET; AND SKIMMING MEANS ROTATABLY MOUNTED AROUND SAID DELIVERY MEANS ABOVE SAID BASKET, SAID SKIMMING MEANS COMPRISING ARM MEANS EXTENDING SUBSTANTIALLY FROM SAID DELIVERY MEANS TO THE PERIPHERY OF SAID BASKET, AND BLADE MEANS ATTACHED TO SAID ARM MEANS, THE LOWER EDGE OF SAID BLADE MEANS EXTENDING AT LEAST TO THE TOP OF SAID BASKET AND BEING SHAPED TO CONTOUR THE MAJOR PORTION OF THE SURFACE AREA OF THE BED BETWEEN SAID DELIVERY MEANS AND THE PERIPHERY OF SAID BASKET AND MAINTAIN A UNIFORM BED DEPTH BY DISTRIBUTING FEED EVENLY OVER THE CONTOURED SURFACE OF SAID BED BASKET.
References Cited (Backward Citations)
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Cited
US279641A
Cited
US452393A
Cited
US1319790A
Cited
US705104A
Cited
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Cited
US1719971A
Cited
US2987185A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |