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Patent US6146243A successfully refreshed from Google Patents.
US6146243A
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Method and apparatus for finishing works magnetically by generating alternating magnetic fields
Assignee: Imahashi Mfg Co Ltd
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Filing: 1997-12-23
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Granted: 2000-11-14
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Expires: 2017-12-23
Abstract
Abstract A method and an apparatus are disclosed wherein works may be finished magnetically by media by utilizing the interaction of the works and media placed within the generated alternating magnetic fields. A method of finishing works magnetically comprises generating multiple alternating magnetic fields and combining them to provide combined alternating magnetic fields covering a specific extensive region and placing media and works in their free motion within those alternating magnetic fields. An apparatus for finishing works magnetically comprises a plurality of alternating magnetic filed generator units each including a plurality of magnets, wherein any combination of those units provides combined alternating magnetic fields within which works and media are placed, with at least the media being placed in its free motion.
Inventors
- 👤 Takahiro Imahashi, deceased
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:15
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/02; B24B31/033; B24B1/00; B24B1/005; B24B31/10; B24B31/102
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
59 words
A method of magnetically finishing work pieces, comprising: establishing a plurality of separate alternating magnetic fields; combining the separate alternating magnetic fields so as to cover a specific area therewith; and placing a mass of media and work pieces to be processed in free motion within the specific area during said combining so as to finish the work pieces.
Claim 2
Independent Claim
59 words
A method of magnetically finishing work pieces, comprising: establishing a plurality of separate alternating magnetic fields; combining the separate alternating magnetic fields so as to cover a specific area therewith; and placing a mass of media and work pieces to be processed in free motion within the specific area during said combining so as to finish the work pieces.
Claim 3
Dependent Claim
30 words
The method of claim 1, wherein said establishing comprises individually rotating a plurality of separate magnet disk plates, each of said disk plates having a plurality of permanent magnets thereon.
Claim 4
Dependent Claim
21 words
The method of claim 2, wherein said combining comprises displacing said plurality of separate disk plates while said disks are rotating.
Claim 5
Dependent Claim
24 words
The method of claim 3, wherein said displacing comprises cyclically moving the separate disk plates together in a plane parallel to the disk plates.
Claim 6
Dependent Claim
55 words
The method of claim 2, wherein said combining comprises displacing each the separate disk plates together so that each of the separate disk plates move from a first position to a second position wherein the second position of each of the separate disk plates overlaps the first position of another of the separate disk plates.
Claim 7
Dependent Claim
60 words
The method of claim 1, wherein said combining comprises moving the separate alternating magnetic fields so that first and second of the separate alternating magnetic fields move from a first position to a second position wherein the second position of the first of the separate alternating magnetic fields overlaps the first position of the second of the alternating magnetic fields.
Claim 8
Independent Claim
99 words
An apparatus for magnetically finishing work pieces, comprising: a plurality of alternating magnetic field generator units, each of said generator units including a plurality of magnets mounted on a rotating plate, and said plurality of alternating magnetic field generator units being arranged in parallel so as to be able to generate respective alternating magnetic fields in a specific area, wherein the specific area can receive a mass of media and works to be processed; and means for changing the relative location of said generator units and the mass media for combining the alternating magnetic fields of said generator units.
Claim 9
Independent Claim
99 words
An apparatus for magnetically finishing work pieces, comprising: a plurality of alternating magnetic field generator units, each of said generator units including a plurality of magnets mounted on a rotating plate, and said plurality of alternating magnetic field generator units being arranged in parallel so as to be able to generate respective alternating magnetic fields in a specific area, wherein the specific area can receive a mass of media and works to be processed; and means for changing the relative location of said generator units and the mass media for combining the alternating magnetic fields of said generator units.
Claim 10
Dependent Claim
44 words
The apparatus of claim 7, wherein said plurality of alternating magnetic field generator units are mounted on a common support plate and said means for changing the relative position includes a device for at least one of rocking the rotating said common support plate.
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) | 2003-11-14 | 2004-05-15 | 2004-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-14 | 2008-05-15 | 2008-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-14 | 2012-05-15 | 2012-11-14 | $7700.00 | Window Closed / Lapsed |