US4427960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic holder for small articles
Assignee: Individual
•
Filing: 1982-12-06
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Granted: 1984-01-24
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Expires: 2002-12-06
Abstract
Abstract A magnetic holder for paper clips or other small magnetically attractable articles comprises a base magnet with a permanently polarized top face of one magnetic polarity, a non-magnetic guide post extending up from the center of the base magnet, and a floating magnet with a central opening which loosely receives the post and a permanently polarized bottom face of the same magnetic polarity as the top face of the base magnet.
Inventors
- 👤 Robert P. Wuerfel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:01
CPC Classifications
F; F16; F16C; F16C39/00; F16C39/06; F16C39/063; H; H01; H01F; H01F7/00; H01F7/02; H01F7/0231; H01F7/0236; H01F7/0252
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
124 words
A magnetic holder for small magnetically attractable articles comprising: a base magnet having a magnetically polarized top face of one magnetic polarity; rigid guide means extending up from said base magnet; a floating magnet interfitting with said guide means above said base magnet to limit lateral displacement of said floating magnet, said floating magnet having a magnetically polarized bottom face of said one magnetic polarity which is repelled by the top face of the base magnet to offset the downward force of gravity on said floating magnet and maintain said floating magnet spaced above said base magnet; and said base magnet and floating magnet constructed for attachment of small magnetically attractable articles thereto in the space between said base magnet and said floating magnet.
Claim 2
Dependent Claim
124 words
A magnetic holder for small magnetically attractable articles comprising: a base magnet having a magnetically polarized top face of one magnetic polarity; rigid guide means extending up from said base magnet; a floating magnet interfitting with said guide means above said base magnet to limit lateral displacement of said floating magnet, said floating magnet having a magnetically polarized bottom face of said one magnetic polarity which is repelled by the top face of the base magnet to offset the downward force of gravity on said floating magnet and maintain said floating magnet spaced above said base magnet; and said base magnet and floating magnet constructed for attachment of small magnetically attractable articles thereto in the space between said base magnet and said floating magnet.
Claim 3
Dependent Claim
41 words
A magnetic holder according to claim 1, wherein said floating magnet has magnetically polarized top and bottom faces of opposite polarities and an exposed peripheral edge between its top and bottom faces against which small magnetically attractable articles are held magnetically.
Claim 4
Dependent Claim
35 words
A magnetic holder according to claim 2, wherein: said rigid guide means is a non-magnetic post extending up from said base magnet; and said floating magnet has an opening therein which loosely receives said post.
Claim 5
Dependent Claim
32 words
A magnetic holder according to claim 3, wherein said floating magnet is a ring having flat top and bottom faces and a cylindrical peripheral edge and having said opening at the center.
Claim 6
Dependent Claim
30 words
A magnetic holder according to claim 4, wherein said base magnet has a flat top face and a cylindrical peripheral edge against which small magnetically attachtable articles are held magnetically.
Claim 7
Dependent Claim
64 words
A magnetic holder according to claim 1, wherein: said base magnet has an exposed top face and an exposed peripheral edge against which small magnetically attractable articles are held magnetically; and said floating magnet has exposed top and bottom faces of opposite magnetic polarities and an exposed peripheral edge between its top and bottom faces against which small magnetically attractable articles are held magnetically.
Claim 8
Dependent Claim
34 words
A magnetic holder according to claim 6, wherein: said rigid guide means is a non-magnetic post extending up from said base magnet; and said floating magnet has an opening which loosely receives said post.
Claim 9
Dependent Claim
30 words
A magnetic holder according to claim 7, wherein: said post extends up from the center of said base magnet; and said opening is at the center of the floating magnet.
Claim 10
Dependent Claim
34 words
A magnetic holder according to claim 1, wherein: said rigid guide means is a non-magnetic post extending up from said base magnet; and said floating magnet has an opening which loosely receives said post.
References Cited (Backward Citations)
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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) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |