US3606270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous power blender
Assignee: LUDISH CO
•
Filing: 1970-05-14
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Granted: 1971-09-20
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Expires: 1990-05-14
Abstract
Abstract PARTICULATE MATERIAL FROM A HOPPER IS FED THROUGH A FEED TUBE INTO THE EYE OF THE IMPELLER OF A CENTRIFUGAL PUMP AND LIQUID IS ALSO DIRECTED INTO THE EYE BY A TUBE WHICH IS CONCENTRIC WITH AND SURROUNDS THE FIRST TUBE, BOTH MATERIALS THEN TRAVELING THROUGH THE IMPELLER TOGETHER, THERE BEING A PERIPHERAL CASING PORTION SURROUNDING THE IMPELLER FROM WHICH THE MIXTURE IS DISCHARGED TANGENTIALLY, AND THERE OPTIONALLY BEING A CENTRAL SCREEN SURROUNDING THE IMPELLER TO INSURE PROPER MIXING.
Inventors
- 👤 Robert D Zimmerly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:23
CPC Classifications
A; A23; A23C; A23C9/00; A23C9/15; A23C9/1508; B; B01; B01F; B01F25/00; B01F25/60; B01F25/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |