US4081114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic supporter assembly
Assignee: TDK Corp
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Filing: 1975-10-02
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Granted: 1978-03-28
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Expires: 1995-10-02
Abstract
Abstract A magnetic supporter assembly supports a mark piece in a ring permanent magnet which is magnetized to form a multipolar magnet.
Inventors
- 👤 Mitio Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:02
CPC Classifications
A; A45; A45F; A45F5/00; Y; Y10; Y10S; Y10S224/00; Y10S224/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A magnetic supporter assembly comprising: a ring permanent magnet magnetized to form a multipolar magnet having a height a, an inner radius b and an outer radius c, a protective material completely enveloping the ring permanent magnet to form a hollow ring of height d, inner radius e and outer radius f, inner radius b of the ring permanent magnet being larger than inner radius e of the protective material, outer radius c of the ring permanent magnet being less than outer radius f of the protective material and height a of the ring permanent magnet being less than height d of the protective material, a supporting element having an opening therein affixed to the outer periphery of the protective material, a magnetic mark piece in the shape of a right cylinder having a height g and a radius h adapted to be suspended and magnetically radially held in the space within the ring permanent magnet, the radius h of the magnetic mark piece being less than the inner radius e of the protective material to form a gap therebetween, the height g of the magnetic mark piece being less than the height a of the ring permanent magnet.
Claim 2
Dependent Claim
199 words
A magnetic supporter assembly comprising: a ring permanent magnet magnetized to form a multipolar magnet having a height a, an inner radius b and an outer radius c, a protective material completely enveloping the ring permanent magnet to form a hollow ring of height d, inner radius e and outer radius f, inner radius b of the ring permanent magnet being larger than inner radius e of the protective material, outer radius c of the ring permanent magnet being less than outer radius f of the protective material and height a of the ring permanent magnet being less than height d of the protective material, a supporting element having an opening therein affixed to the outer periphery of the protective material, a magnetic mark piece in the shape of a right cylinder having a height g and a radius h adapted to be suspended and magnetically radially held in the space within the ring permanent magnet, the radius h of the magnetic mark piece being less than the inner radius e of the protective material to form a gap therebetween, the height g of the magnetic mark piece being less than the height a of the ring permanent magnet.
References Cited (Backward Citations)
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Cited
US3207960A
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US3277681A
Cited
US3815066A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |