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US3742406A Expired / Lapsed US ⏱️ 0.0 years remaining

Blue lateral and purity magnet structure

Assignee: Illinois Tool Works Inc
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Filing: 1971-10-21
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Granted: 1973-06-26
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Expires: 1991-10-21
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Abstract

Abstract A plurality of lateral magnets and purity magnets for use in a magnetic correction device and a method for making the same. The purity magnet comprises a ring and the lateral magnets are stamped from what would normally be the scrap from the center of the ring.

Inventors

  • 👤 L Erickson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 08:28
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702; H01J29/703; H01F; H01F7/00; H01F7/02; H01F7/0273; H01F7/0278

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 63 words
A lateral magnet assembly for use in a magnetic correction device comprising: two non-magnetic carrier rings; boss means located on and protruding from each of said carrier rings; rib means located on each of said carrier rings; and at least one lateral magnet with magnetic north and south poles mounted on each of said carriers by said boss means and said rib means.
Claim 2
Dependent Claim 63 words
A lateral magnet assembly for use in a magnetic correction device comprising: two non-magnetic carrier rings; boss means located on and protruding from each of said carrier rings; rib means located on each of said carrier rings; and at least one lateral magnet with magnetic north and south poles mounted on each of said carriers by said boss means and said rib means.
Claim 3
Dependent Claim 43 words
A lateral magnetic assembly according to claim 1 wherein said boss means include at least one protruding boss member for each lateral magnet to be mounted and said rib means includes at least one protruding rib member for each of said boss members.
Claim 4
Dependent Claim 43 words
A lateral magnetic assembly according to claim 2 wherein said rib means includes two protruding rib members for each of said boss members whereby each magnet is mounted on a surface of each carrier ring by one boss member and two rib members.
Claim 5
Dependent Claim 76 words
A lateral magnetic assembly according to claim 3 wherein, there are at least two magnets and each of said magnets includes a flat body portion with an upper arcuate edge, a lower arcuate edge, two edge means joining together said arcuate edges for mounting on a respective rib member, each of said edge means having a respective north and south pole, and a bore through the surface of said magnet for receipt of said boss member.
Claim 6
Dependent Claim 40 words
A lateral magnet assembly according to claim 4 wherein each of said non-magnetic carrier rings has an inner circular edge having a radius of curvature substantially equal to the radius of curvature of each inner arcuate edge of said magnets.
Claim 7
Dependent Claim 65 words
A lateral magnet assembly according to claim 5 wherein said boss members are located on a common circle having as its center the center of said carrier ring and said magnets are mounted on said carrier rings such that the distance from the center to said inner circular edge iS equal to the distance from the center to the lower arcuate edges of each magnet.
Claim 8
Dependent Claim 23 words
A lateral magnet assembly according to claim 6 wherein said boss members are equally spaced apart whereby said magnets are equally spaced apart.
Claim 9
Dependent Claim 39 words
A lateral magnet assembly according to claim 7 including three lateral magnets mounted adjacently on each of said carrier rings whereby a north pole of each of said magnets lies adjacent to south pole of an adjacent lateral magnet.
Claim 10
Dependent Claim 79 words
A lateral magnet assembly for use in a magnetic correction device comprising: two non-magnetic carrier rings; a plurality of lateral magnets, each with magnetic north and south pole means, mounted on a common surface of each of said carrier rings; and means mounting said magnets adjacently on said carriers whereby a north pole of each of said magnets is adjacent a south pole of an adjacent magnet, the magnets on the respective carriers being in substantially face-to-face confronting relation.
Claim 11
Dependent Claim 79 words
A lateral magnet assembly for use in a magnetic correction device comprising: two non-magnetic carrier rings; a plurality of lateral magnets, each with magnetic north and south pole means, mounted on a common surface of each of said carrier rings; and means mounting said magnets adjacently on said carriers whereby a north pole of each of said magnets is adjacent a south pole of an adjacent magnet, the magnets on the respective carriers being in substantially face-to-face confronting relation.
Claim 12
Dependent Claim 44 words
A lateral magnet assembly according to claim 9 wherein each of said magnets includes an upper arcuate edge, a lower arcuate edge, and two end edge means joining together said arcuate edges each of said edge means having a respective north and south pole.
Claim 13
Dependent Claim 75 words
A lateral magnet for use in a magnetic correction device comprising: a thin body portion having an upper arcuate edge, a lower arcuate edge and two end edge means joining together said arcuate edges, the distance between said upper and lower arcuate edge being at least twice the thickness of said thin body portion each of said edges having a respective north and south pole: and means to mount said lateral magnet on said device.
Claim 14
Dependent Claim 75 words
A lateral magnet for use in a magnetic correction device comprising: a thin body portion having an upper arcuate edge, a lower arcuate edge and two end edge means joining together said arcuate edges, the distance between said upper and lower arcuate edge being at least twice the thickness of said thin body portion each of said edges having a respective north and south pole: and means to mount said lateral magnet on said device.
Claim 15
Dependent Claim 22 words
A magnet according to claim 11 wherein said body portion mounting means includes a bore through said end edges are straight edges.

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) 1976-06-25 1976-12-25 1977-06-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-25 1980-12-25 1981-06-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-25 1984-12-25 1985-06-26 $7700.00 Window Closed / Lapsed

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