Patent US5691683A successfully refreshed from Google Patents.
US5691683A
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US
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Multi-pole composite magnet
Assignee: Individual
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Filing: 1995-04-17
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Granted: 1997-11-25
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Expires: 2015-04-17
Abstract
Abstract The composite magnet comprises two sections, each section having a plurality of projections and apertures. The projections and apertures on a first section mate with the apertures and projections, respectively, on the second section. The first and second sections are magnetized in opposite axial directions.
Inventors
- 👤 Elmer C. Allwine, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:53
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/30; H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/14; H02K1/146; H02K1/22; H02K1/27; H02K1/2793; H02K1/2795; H02K21/00; H02K21/12; H02K21/24; H02K29/00; H02K29/06; H02K29/08; H02K3/00; H02K3/04; H02K3/18; H02K3/46; H02K3/52; H02K3/521; H02K3/525; H02K2203/00; H02K2203/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
A multi-pole composite magnet comprising: a first section having a first hub having a first axis about which said first hub is capable of rotating, said first hub having a first plurality of members integrally formed with said first hub and radially extending away from said first axis in a plane perpendicular to said first axis; and a second section having a second hub having a second axis about which said second hub is capable of rotating, said second axis coinciding with said first axis, said second hub having a second plurality of members integrally formed with said second hub and radially extending away from said second axis in a plane perpendicular to said second axis, wherein said first and second plurality of members are permanently magnetized in opposite directions parallel to either said first or second axis, wherein said first and second sections are rigidly mated together, and wherein each member of said first plurality of members is located between a pair of members of said second plurality of members and wherein each member of said second plurality of members is located between a pair of members of said first plurality of members.
Claim 2
Dependent Claim
194 words
A multi-pole composite magnet comprising: a first section having a first hub having a first axis about which said first hub is capable of rotating, said first hub having a first plurality of members integrally formed with said first hub and radially extending away from said first axis in a plane perpendicular to said first axis; and a second section having a second hub having a second axis about which said second hub is capable of rotating, said second axis coinciding with said first axis, said second hub having a second plurality of members integrally formed with said second hub and radially extending away from said second axis in a plane perpendicular to said second axis, wherein said first and second plurality of members are permanently magnetized in opposite directions parallel to either said first or second axis, wherein said first and second sections are rigidly mated together, and wherein each member of said first plurality of members is located between a pair of members of said second plurality of members and wherein each member of said second plurality of members is located between a pair of members of said first plurality of members.
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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) | 2000-11-24 | 2001-05-26 | 2001-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-24 | 2005-05-26 | 2005-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-24 | 2009-05-26 | 2009-11-25 | $7700.00 | Window Closed / Lapsed |