US3658178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnet assembly for magnetic separator
Assignee: Individual
•
Filing: 1970-03-26
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Granted: 1972-04-25
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Expires: 1990-03-26
Abstract
Abstract A pair of ceramic permanent magnets are inclined at a predetermined angle relative to one another and to an arcuate path along which cotton is conveyed so as to concentrate the magnetic field on the path and increase the ability of the magnets to attract magnetic particles from the cotton.
Inventors
- 👤 Robert A Parnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:25
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
153 words
A magnet assembly for attracting and separating magnetic material from non-magnetic material as the material is conveyed along a predetermined arcuate path, said assembly comprising a supporting plate of magnetic material spaced radially outwardly of said path and having a pair of supporting surfaces facing said path in close proximity thereto and disposed in oppositely inclined planes which converge as they progress outwardly of said path and whose line of intersection extends transversely of said path, a stationary flat-faced ceramic permanent magnet mounted on each of said supporting surfaces and spaced along said path from one another, one of said magnets having one pole face facing said path and the other magnet having an opposite pole face facing said path, and said pole faces paralleling their respective supporting surfaces to concentrate the magnetic force on said path and increase the ability of said assembly to attract the magnetic material conveyed along the path.
Claim 2
Dependent Claim
153 words
A magnet assembly for attracting and separating magnetic material from non-magnetic material as the material is conveyed along a predetermined arcuate path, said assembly comprising a supporting plate of magnetic material spaced radially outwardly of said path and having a pair of supporting surfaces facing said path in close proximity thereto and disposed in oppositely inclined planes which converge as they progress outwardly of said path and whose line of intersection extends transversely of said path, a stationary flat-faced ceramic permanent magnet mounted on each of said supporting surfaces and spaced along said path from one another, one of said magnets having one pole face facing said path and the other magnet having an opposite pole face facing said path, and said pole faces paralleling their respective supporting surfaces to concentrate the magnetic force on said path and increase the ability of said assembly to attract the magnetic material conveyed along the path.
Claim 3
Dependent Claim
49 words
A magnet assembly as defined in claim 1 in which the included angle between said planes is less than 160* but is greater than the angle between two similarly inclined planes extending tangential to the path and intersecting one another at the line of intersection of said first planes.
Claim 4
Dependent Claim
147 words
A magnet assembly for attracting and separating magnetic material from non-magnetic material as the material is conveyed along a predetermined angular path, said assembly comprising a support of magnetic material spaced outwardly from said path in close proximity thereto, and a pair of stationary flat-faced ceramic permanent magnets mounted on said support and both disposed on the same side of said path while spaced from one another along said path, one of said magnets having one pole face facing said path and the other magnet having an opposite pole face facing said path, and said pole faces being disposed in oppositely inclined planes which converge as they progress outwardly from said path and whose line of intersection extends transversely of said path thereby to concentrate the magnetic force on said path and increase the ability of said assembly to attract the magnetic material conveyed along the path.
Claim 5
Dependent Claim
147 words
A magnet assembly for attracting and separating magnetic material from non-magnetic material as the material is conveyed along a predetermined angular path, said assembly comprising a support of magnetic material spaced outwardly from said path in close proximity thereto, and a pair of stationary flat-faced ceramic permanent magnets mounted on said support and both disposed on the same side of said path while spaced from one another along said path, one of said magnets having one pole face facing said path and the other magnet having an opposite pole face facing said path, and said pole faces being disposed in oppositely inclined planes which converge as they progress outwardly from said path and whose line of intersection extends transversely of said path thereby to concentrate the magnetic force on said path and increase the ability of said assembly to attract the magnetic material conveyed along the path.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |