Patent US3170186A successfully refreshed from Google Patents.
US4229288A
Expired / Lapsed
US
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Linear motor type, non-magnetic metal separating apparatus
Assignee: Shinko Electric Co Ltd
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Filing: 1979-01-04
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Granted: 1980-10-21
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Expires: 1999-01-04
Abstract
Abstract Apparatus for separating non-magnetic metals to permit recovery, for example, of aluminium and other non-magnetic metals mixed with materials having other compositions. The mix of materials are vibrationally conveyed in a first direction by a vibration feeder and a deflecting force in a second perpendicular direction is exerted on the non-magnetic metals by moving magnetic fields produced by a plurality of linear motors. The apparatus includes means for controlling the longitudinal tilt and the transverse inclination to optimize the separations achieved with different mixes of materials.
Inventors
- 👤 Masaru Akama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:51
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/23; B03C1/24; B03C1/253
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
112 words
A linear motor-type, non-magnetic metal separating apparatus comprising: a vibration feeder provided with a vibrating deck and means for causing vibration and defining a vibrating direction of conveyance; at least two linear motors disposed on the vibrating deck of said vibration feeder so that the advancing directions of the forces provided to non-magnetic metals to be separated by the moving magnetic fields of said linear motors are approximately parallel to one another and perpendicular to the vibratory direction of the conveyance; and a trough disposed as a cover for said linear motors and adapted to be vibrated by said vibration feeder from the underside thereof, said trough defining a series of steps.
Claim 2
Dependent Claim
112 words
A linear motor-type, non-magnetic metal separating apparatus comprising: a vibration feeder provided with a vibrating deck and means for causing vibration and defining a vibrating direction of conveyance; at least two linear motors disposed on the vibrating deck of said vibration feeder so that the advancing directions of the forces provided to non-magnetic metals to be separated by the moving magnetic fields of said linear motors are approximately parallel to one another and perpendicular to the vibratory direction of the conveyance; and a trough disposed as a cover for said linear motors and adapted to be vibrated by said vibration feeder from the underside thereof, said trough defining a series of steps.
Claim 3
Dependent Claim
20 words
Apparatus according to claim 1 further comprising adjustable means for supporting said trough in elevation with predetermined tilt and inclination.
Claim 4
Dependent Claim
29 words
Apparatus according to claim 2 wherein said adjustable means for supporting said trough is adjusted to tilt said trough at a rising gradient to the vibratory direction of conveyance.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 2 wherein said adjustable means for supporting said trough is adjusted to tilt said trough at a lowering gradient to the vibratory direction of conveyance.
Claim 6
Dependent Claim
39 words
Apparatus according to claim 3 or 4 wherein said means for supporting said trough in elevation are also adjusted to tilt the trough at a rising gradient to the moving direction of magnetic field produced by said linear motors.
Claim 7
Dependent Claim
39 words
Apparatus according to claim 3 or 4 wherein said means for supporting said trough in elevation are also adjusted to tilt the trough at a lowering gradient to the moving direction of magnetic field produced by said linear motors.
Claim 8
Dependent Claim
36 words
Apparatus according to claim 1 wherein said means for supporting said trough in elevation are adjusted to tilt the trough at a rising gradient to the moving direction of magnetic field produced by said linear motors.
Claim 9
Dependent Claim
36 words
Apparatus according to claim 1 wherein said means for supporting said trough in elevation are adjusted to tilt the trough at a lowering gradient to the moving direction of magnetic field produced by said linear motors.
Claim 10
Dependent Claim
46 words
Apparatus according to claim 1 further comprising a dumping-up plate member provided at one end-corner of the lowest step of said trough where both directions of the deflecting force of moving magnetic field from said linear motors and of the vibratory direction of conveyance are crossed.
Claim 11
Dependent Claim
32 words
Apparatus according to claim 1 further comprising a dumping-up plate member attached to said trough of the side thereof opposing to the direction of moving magnetic field produced by said linear motors.
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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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |