Patent US3021682A successfully refreshed from Google Patents.
Patent US4534516A successfully refreshed from Google Patents.
US4534516A
Expired / Lapsed
US
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Dynamic separator for a grinding mill
Assignee: ASADA IRON WORKS Co Ltd JUUNI KENMACHI 8 HIGASHI-KU OSAKA JAPAN A CORP OF JAPAN
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Filing: 1984-06-14
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Granted: 1985-08-13
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Expires: 2004-06-14
Abstract
Abstract A dynamic separator for a grinding mill having a stator installed in a stationary manner and a rotor provided on a rotary shaft such that it faces the stator. Between the stator and the rotor is provided a small gap for the passage of processed material in order to separate and discharge the processed material from the dispersion media. The rotor is arranged and configured together with the stator such that the relative position of the rotor rim area and the stator are constantly varied.
Inventors
- 👤 Iwao Hashizume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:52
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/46; G11B15/54
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
159 words
A grinding mill comprising a dispersive agitation tank and a dynamic separator, said dynamic separator comprising: a stator extending in a horizontal plane and fixed to a top wall of said agitation tank; and a rotor extending in a horizontal plane and located vertically below said stator within said agitation tank and facing said stator with a small predetermined gap between a horizontally extending surface of the stator and a horizontally extending surface of the rotor in order to separate a dispension medium from a processed material, said rotor having a vertically extending axis of rotation and an outer periphery, wherein a horizontally extending radial distance from one point on said periphery to said axis of rotation is not equal to a horizontally extending radially distance from at least one other point on said periphery to said axis of rotation, so that an overlap of a rim of said rotor relative to a rim of said stator varies constantly.
Claim 2
Dependent Claim
159 words
A grinding mill comprising a dispersive agitation tank and a dynamic separator, said dynamic separator comprising: a stator extending in a horizontal plane and fixed to a top wall of said agitation tank; and a rotor extending in a horizontal plane and located vertically below said stator within said agitation tank and facing said stator with a small predetermined gap between a horizontally extending surface of the stator and a horizontally extending surface of the rotor in order to separate a dispension medium from a processed material, said rotor having a vertically extending axis of rotation and an outer periphery, wherein a horizontally extending radial distance from one point on said periphery to said axis of rotation is not equal to a horizontally extending radially distance from at least one other point on said periphery to said axis of rotation, so that an overlap of a rim of said rotor relative to a rim of said stator varies constantly.
Claim 3
Dependent Claim
19 words
A dynamic separator according to claim 1, wherein said rotor is disc-shaped and provided eccentrically on said rotary shaft.
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) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |